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ChangeLog.md
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# Changelog
All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
## [3.11.2](https://github.com/nlohmann/json/releases/tag/3.11.2) (2022-08-12)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.11.1...3.11.2)
- MSVC natvis visualizer does not work after introduction of inline ABI namespace [\#3696](https://github.com/nlohmann/json/issues/3696)
- The use of parenthesis gives compilation errors in some situations [\#3682](https://github.com/nlohmann/json/issues/3682)
- extern from/to\_json result in linker error [\#3657](https://github.com/nlohmann/json/issues/3657)
- json\_fwd.hpp no longer standalone [\#3656](https://github.com/nlohmann/json/issues/3656)
- regression: `.value<size_t>` is compilation error. [\#3655](https://github.com/nlohmann/json/issues/3655)
- Regression: no match for 'operator!=' comparing json\_pointer and const char \*/string\_t [\#3654](https://github.com/nlohmann/json/issues/3654)
- Regression: call to member function 'value' is ambiguous [\#3652](https://github.com/nlohmann/json/issues/3652)
- macOS 10.15 Actions runner image deprecation [\#3612](https://github.com/nlohmann/json/issues/3612)
- generate\_natvis.py: validate version number; cleanup [\#3698](https://github.com/nlohmann/json/pull/3698) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add Python script for generating Natvis file and update file for 3.11.2 [\#3697](https://github.com/nlohmann/json/pull/3697) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- fix typo in json\_pointer.md [\#3692](https://github.com/nlohmann/json/pull/3692) ([eltociear](https://github.com/eltociear))
- Add amalgamated json-fwd.hpp to release [\#3687](https://github.com/nlohmann/json/pull/3687) ([nlohmann](https://github.com/nlohmann))
- Documentation updates for 3.11.2 [\#3686](https://github.com/nlohmann/json/pull/3686) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Make json\_pointer usable as map key \(again\) [\#3685](https://github.com/nlohmann/json/pull/3685) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Deprecate json\_pointer/string\_t comparisons [\#3684](https://github.com/nlohmann/json/pull/3684) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Restructure inline namespace and allow version component to be disabled [\#3683](https://github.com/nlohmann/json/pull/3683) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Properly constrain non-string json\_pointer overloads [\#3681](https://github.com/nlohmann/json/pull/3681) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Amalgamate the forward declaration header [\#3679](https://github.com/nlohmann/json/pull/3679) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix 'const' qualifier on bool& has no effect [\#3678](https://github.com/nlohmann/json/pull/3678) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix whitespace in workflow files [\#3675](https://github.com/nlohmann/json/pull/3675) ([nlohmann](https://github.com/nlohmann))
- Attempt to fix labeler permissions [\#3674](https://github.com/nlohmann/json/pull/3674) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Refine 'Publish documentation' workflow [\#3673](https://github.com/nlohmann/json/pull/3673) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Documentation change [\#3672](https://github.com/nlohmann/json/pull/3672) ([nlohmann](https://github.com/nlohmann))
- Add labeler action [\#3671](https://github.com/nlohmann/json/pull/3671) ([nlohmann](https://github.com/nlohmann))
- Complete contributor list [\#3670](https://github.com/nlohmann/json/pull/3670) ([nlohmann](https://github.com/nlohmann))
- Add json\_pointer/string\_t equality comparison operators [\#3664](https://github.com/nlohmann/json/pull/3664) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Reimplement value\(\) access functions [\#3663](https://github.com/nlohmann/json/pull/3663) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Complete contributor list [\#3662](https://github.com/nlohmann/json/pull/3662) ([nlohmann](https://github.com/nlohmann))
- Adjust naming of GitHub action jobs [\#3661](https://github.com/nlohmann/json/pull/3661) ([nlohmann](https://github.com/nlohmann))
- Publish documentation on push to develop branch [\#3660](https://github.com/nlohmann/json/pull/3660) ([nlohmann](https://github.com/nlohmann))
- Add Discord badge to README [\#3651](https://github.com/nlohmann/json/pull/3651) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Miscellaneous small fixes [\#3643](https://github.com/nlohmann/json/pull/3643) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Minor BJData fixes [\#3637](https://github.com/nlohmann/json/pull/3637) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Update CI [\#3626](https://github.com/nlohmann/json/pull/3626) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
## [v3.11.1](https://github.com/nlohmann/json/releases/tag/v3.11.1) (2022-08-01)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.11.0...v3.11.1)
- Regression: no matching literal operator for call to 'operator""\_json' [\#3645](https://github.com/nlohmann/json/issues/3645)
- \_json operator""\(\) [\#3644](https://github.com/nlohmann/json/issues/3644)
- Fix global UDLs [\#3646](https://github.com/nlohmann/json/pull/3646) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
## [v3.11.0](https://github.com/nlohmann/json/releases/tag/v3.11.0) (2022-08-01)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.5...v3.11.0)
- ICPC: warning \#1098: the qualifier on this friend declaration is ignored [\#3632](https://github.com/nlohmann/json/issues/3632)
- Starting with 3.10.4, just adding `\#include json.hpp` causes compile error: `overload resolution selected deleted operator '=' [\#3620](https://github.com/nlohmann/json/issues/3620)
- xwidgets doesn't compile with version \>3.10.3 [\#3602](https://github.com/nlohmann/json/issues/3602)
- json\_pointer\_\_pop\_back.cpp example does not compile [\#3600](https://github.com/nlohmann/json/issues/3600)
- nlohmann::json::array 'push\_back' is ambiguous [\#3589](https://github.com/nlohmann/json/issues/3589)
- Multiple versions causing conflict [\#3588](https://github.com/nlohmann/json/issues/3588)
- ERROR: ThreadSanitizer: SEGV on unknown address [\#3584](https://github.com/nlohmann/json/issues/3584)
- unicode4 test consistently fails on RISC-V hardware [\#3579](https://github.com/nlohmann/json/issues/3579)
- sax\_parse\(iterator, json\_sax\_t \*\) string callback clobbers spaces [\#3574](https://github.com/nlohmann/json/issues/3574)
- Nlohmann JSON Parse crash with raylib-cpp [\#3570](https://github.com/nlohmann/json/issues/3570)
- ordered\_json doesn't accept keys of types other than string\_t \(e.g., string\_view\) [\#3558](https://github.com/nlohmann/json/issues/3558)
- turning an object into an array [\#3547](https://github.com/nlohmann/json/issues/3547)
- json:parse\_bjdata\_fuzzer: ASSERT: ref\_stack.back\(\)-\>is\_array\(\) [\#3541](https://github.com/nlohmann/json/issues/3541)
- Warning about potential null dereference in GCC 12.1 \(Fedora 36\) [\#3525](https://github.com/nlohmann/json/issues/3525)
- Enable 32bit unit test in CI [\#3524](https://github.com/nlohmann/json/issues/3524)
- Error when roundtripping BJData [\#3519](https://github.com/nlohmann/json/issues/3519)
- ASSERT error while parsing BJData [\#3513](https://github.com/nlohmann/json/issues/3513)
- An exception occurred when sending a string with double quotes [\#3504](https://github.com/nlohmann/json/issues/3504)
- Binary reader for BJData creates incorrect SAX events [\#3503](https://github.com/nlohmann/json/issues/3503)
- It can't support "nan", "inf", "-inf" for float type [\#3494](https://github.com/nlohmann/json/issues/3494)
- ASAN error while parsing BJData \(Heap-buffer-overflow READ 1\) [\#3492](https://github.com/nlohmann/json/issues/3492)
- UBSAN error while parsing BJData \(Null-dereference\) [\#3491](https://github.com/nlohmann/json/issues/3491)
- UBSAN error while parsing BJData \(Invalid-bool-value\) [\#3490](https://github.com/nlohmann/json/issues/3490)
- json:parse\_bjdata\_fuzzer reaches assertion [\#3475](https://github.com/nlohmann/json/issues/3475)
- Compilation with -fmodules-ts and use inside of a module [\#3472](https://github.com/nlohmann/json/issues/3472)
- json.exception.parse\_error.101 only occurs outside of IDE [\#3467](https://github.com/nlohmann/json/issues/3467)
- json:parse\_bjdata\_fuzzer reaches assertion [\#3461](https://github.com/nlohmann/json/issues/3461)
- NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE\_WITH\_DEFAULT can not parse { "key" : null} [\#3458](https://github.com/nlohmann/json/issues/3458)
- Unable to compile when using Microsoft's \_CRTDBG [\#3457](https://github.com/nlohmann/json/issues/3457)
- Compilation errors when including `<filesystem>` and using `--std=c++17` or above \(MinGW/Win10\) [\#3449](https://github.com/nlohmann/json/issues/3449)
- Weird things on for statement [\#3447](https://github.com/nlohmann/json/issues/3447)
- Parsing error when there is a json string within a Json [\#3445](https://github.com/nlohmann/json/issues/3445)
- ordered\_json vs json types comparison [\#3443](https://github.com/nlohmann/json/issues/3443)
- Error occurred when converting nlohmann::json to std::any [\#3428](https://github.com/nlohmann/json/issues/3428)
- I was forced to report an assertion error when copying an array of strings [\#3419](https://github.com/nlohmann/json/issues/3419)
- About Serialization Error invalid UTF-8 byte at index [\#3414](https://github.com/nlohmann/json/issues/3414)
- Comparison of NaN differs between json and float [\#3409](https://github.com/nlohmann/json/issues/3409)
- when i use it in C++ sserver,it it constantly show that fatal error: adl\_serializer.hpp: No such file or directory [\#3404](https://github.com/nlohmann/json/issues/3404)
- parse error [\#3403](https://github.com/nlohmann/json/issues/3403)
- CMake script MAIN\_PROJECT always OFF [\#3390](https://github.com/nlohmann/json/issues/3390)
- Parser unable to handle large floating point numbers [\#3389](https://github.com/nlohmann/json/issues/3389)
- Compilation error if json\_pointer is used with alternative string type [\#3388](https://github.com/nlohmann/json/issues/3388)
- Unit tests conversions & items fail to build \(Clang \<4.0/C++14 only\) [\#3384](https://github.com/nlohmann/json/issues/3384)
- Regression test for \#3070 is not being run and fails when enabled [\#3377](https://github.com/nlohmann/json/issues/3377)
- Refactor unit tests to use more convenient doctest assertion macros [\#3365](https://github.com/nlohmann/json/issues/3365)
- An json.h issue reported in a static code analyzer [\#3361](https://github.com/nlohmann/json/issues/3361)
- Mixing different JSON\_DIAGNOSTICS settings in separately compiled units leads to core [\#3360](https://github.com/nlohmann/json/issues/3360)
- json::out\_of\_range exception matches against lot of others while testing [\#3352](https://github.com/nlohmann/json/issues/3352)
- use mipsel-openwrt-linux-g++ -std=c++11 to compile, it has some errors "error: 'snprintf' is not a member of 'std'" [\#3349](https://github.com/nlohmann/json/issues/3349)
- Add proper issue templates [\#3348](https://github.com/nlohmann/json/issues/3348)
- switch from json to ordered\_json [\#3343](https://github.com/nlohmann/json/issues/3343)
- Json dump use to compilation errors [\#3339](https://github.com/nlohmann/json/issues/3339)
- Ambiguous conversion from nlohmann::basic\_json\<\> to custom class. [\#3333](https://github.com/nlohmann/json/issues/3333)
- Iterator doesn't satisfy std::incrementable because post-increment may change constness [\#3331](https://github.com/nlohmann/json/issues/3331)
- Inconsistent handling of floating point numbers after parse\(\) [\#3329](https://github.com/nlohmann/json/issues/3329)
- Documentation for `ordered_json` should show proper use of the `parse()` function. [\#3325](https://github.com/nlohmann/json/issues/3325)
- "type must be boolean, but is object" error thrown on non-boolean object [\#3319](https://github.com/nlohmann/json/issues/3319)
- Incomplete Type in request parms [\#3318](https://github.com/nlohmann/json/issues/3318)
- 小米 MIX4 MIUI13 bug [\#3316](https://github.com/nlohmann/json/issues/3316)
- json.exception.parse\_error.101 when parsing data received over a socket [\#3313](https://github.com/nlohmann/json/issues/3313)
- Parse to custom class from unordered\_json breaks on G++11.2.0 with C++20 [\#3312](https://github.com/nlohmann/json/issues/3312)
- try to assign dumped string to a class member varible [\#3300](https://github.com/nlohmann/json/issues/3300)
- includedir in pkgconfig is error if install\_headers\(\) has subdir argument. [\#3284](https://github.com/nlohmann/json/issues/3284)
- SHA-256 sum of json-3.10.5.tar.xz changes over time \(but not the content itself\) [\#3281](https://github.com/nlohmann/json/issues/3281)
- items\(\) method does not follow order of json message [\#3278](https://github.com/nlohmann/json/issues/3278)
- Perplexing template deduction failure serialising a 3rd party type using base class [\#3267](https://github.com/nlohmann/json/issues/3267)
- json.hpp 'isfinite' is not a member of 'std' also isinf; snprintf; stoull and to\_string members of std [\#3263](https://github.com/nlohmann/json/issues/3263)
- JSON build fails for C++ cmake [\#3256](https://github.com/nlohmann/json/issues/3256)
- Unexpected implicit conversion [\#3254](https://github.com/nlohmann/json/issues/3254)
- Add a function that checks for valid json in a C++ string [\#3245](https://github.com/nlohmann/json/issues/3245)
- Replace use of standard IO from error handling [\#3239](https://github.com/nlohmann/json/issues/3239)
- Use Catch for unit tests [\#3232](https://github.com/nlohmann/json/issues/3232)
- Exception thrown during initialization causes a memory leak [\#3215](https://github.com/nlohmann/json/issues/3215)
- Tests failing when compiling with c++20 [\#3207](https://github.com/nlohmann/json/issues/3207)
- ambiguous regression [\#3204](https://github.com/nlohmann/json/issues/3204)
- Deserialization: if class is\_constructible from std::string wrong from\_json overload is being selected, compilation failed [\#3171](https://github.com/nlohmann/json/issues/3171)
- 'clang++ ./json.hpp' with no usage: Compiler syntax problem in clang 3.7.0 \(tizen :/ \) [\#3153](https://github.com/nlohmann/json/issues/3153)
- build failure on upcoming gcc-12: test/src/unit-regression1.cpp:392:22: error: ambiguous overload for 'operator=' [\#3138](https://github.com/nlohmann/json/issues/3138)
- Applying JSON patch creates parent object [\#3134](https://github.com/nlohmann/json/issues/3134)
- Iterators cannot be used with range-v3 [\#3130](https://github.com/nlohmann/json/issues/3130)
- std::shared\_ptr\<T\> == nlohmann::json compiles, which seem undesirable [\#3026](https://github.com/nlohmann/json/issues/3026)
- Error in test\download\_test\_data.vcxproj custom build step when compiling with Visual Studio 2019 16.7.7 msbuild on Windows 10 [\#2593](https://github.com/nlohmann/json/issues/2593)
- Consider putting the user-defined literals in a namespace [\#1682](https://github.com/nlohmann/json/issues/1682)
- Using versioned namespaces [\#1539](https://github.com/nlohmann/json/issues/1539)
- How can I use std::string\_view as the json\_key to "operator \[\]" ? [\#1529](https://github.com/nlohmann/json/issues/1529)
- serialize std::variant\<...\> [\#1261](https://github.com/nlohmann/json/issues/1261)
- Prepare 3.11.0 release [\#3635](https://github.com/nlohmann/json/pull/3635) ([nlohmann](https://github.com/nlohmann))
- Fix warning [\#3634](https://github.com/nlohmann/json/pull/3634) ([nlohmann](https://github.com/nlohmann))
- Add license header to new files [\#3633](https://github.com/nlohmann/json/pull/3633) ([nlohmann](https://github.com/nlohmann))
- Add a unit test including windows.h [\#3631](https://github.com/nlohmann/json/pull/3631) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fixed latest build error in msvc platform [\#3630](https://github.com/nlohmann/json/pull/3630) ([KsaNL](https://github.com/KsaNL))
- Add regression tests for \#3204 and \#3333 [\#3629](https://github.com/nlohmann/json/pull/3629) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix patch::add creating nonexistent parents [\#3628](https://github.com/nlohmann/json/pull/3628) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Adjust JSON Pointer examples [\#3622](https://github.com/nlohmann/json/pull/3622) ([nlohmann](https://github.com/nlohmann))
- Disable exceptions on ICPC [\#3621](https://github.com/nlohmann/json/pull/3621) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- build: install .pc and .cmake files to share/ [\#3619](https://github.com/nlohmann/json/pull/3619) ([Tachi107](https://github.com/Tachi107))
- Fix MinGW CI failures [\#3618](https://github.com/nlohmann/json/pull/3618) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix Unicode test timeout \(for real this time!\) [\#3614](https://github.com/nlohmann/json/pull/3614) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use 'concurrency' in GitHub workflows [\#3610](https://github.com/nlohmann/json/pull/3610) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use swap\(\) by ADL [\#3609](https://github.com/nlohmann/json/pull/3609) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Move UDLs out of the global namespace [\#3605](https://github.com/nlohmann/json/pull/3605) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Re-add value\_type detection to distinguish string types [\#3604](https://github.com/nlohmann/json/pull/3604) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add operator\<\<\(json\_pointer\) [\#3601](https://github.com/nlohmann/json/pull/3601) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add documentation for comparing json and ordered\_json [\#3599](https://github.com/nlohmann/json/pull/3599) ([nlohmann](https://github.com/nlohmann))
- Clean up after \#3581 [\#3596](https://github.com/nlohmann/json/pull/3596) ([nlohmann](https://github.com/nlohmann))
- Add assertion if nullptr is passed to parse function [\#3593](https://github.com/nlohmann/json/pull/3593) ([nlohmann](https://github.com/nlohmann))
- Minor documentation fixes [\#3592](https://github.com/nlohmann/json/pull/3592) ([nlohmann](https://github.com/nlohmann))
- Add versioned, ABI-tagged inline namespace and namespace macros [\#3590](https://github.com/nlohmann/json/pull/3590) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add badge for https://repology.org/project/nlohmann-json/versions [\#3586](https://github.com/nlohmann/json/pull/3586) ([nlohmann](https://github.com/nlohmann))
- Add error message if test suite cannot be found [\#3585](https://github.com/nlohmann/json/pull/3585) ([nlohmann](https://github.com/nlohmann))
- add patch\_inplace function [\#3581](https://github.com/nlohmann/json/pull/3581) ([wolfv](https://github.com/wolfv))
- Enable overriding test properties and set Unicode test timeouts [\#3580](https://github.com/nlohmann/json/pull/3580) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Ignore output directory [\#3572](https://github.com/nlohmann/json/pull/3572) ([NN---](https://github.com/NN---))
- Optimize output vector adapter write [\#3569](https://github.com/nlohmann/json/pull/3569) ([romainreignier](https://github.com/romainreignier))
- Add overloads for more key types to ordered\_map and fix ordered\_map::erase\(first, last\) with first == last [\#3564](https://github.com/nlohmann/json/pull/3564) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Make certain usage patterns more prominent in the README [\#3557](https://github.com/nlohmann/json/pull/3557) ([jez](https://github.com/jez))
- CI: fix "JSON\_MultipleHeaders" option spelling [\#3555](https://github.com/nlohmann/json/pull/3555) ([karzhenkov](https://github.com/karzhenkov))
- More documentation updates for 3.11.0 [\#3553](https://github.com/nlohmann/json/pull/3553) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use DOCTEST\_\* compiler macros and suppress pragmas warning [\#3550](https://github.com/nlohmann/json/pull/3550) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add unit test to make sure iterator\_input\_adapter advances iterators correctly [\#3548](https://github.com/nlohmann/json/pull/3548) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use REUSE framework [\#3546](https://github.com/nlohmann/json/pull/3546) ([nlohmann](https://github.com/nlohmann))
- Use `std::iterator_traits` to extract `iterator_category` [\#3544](https://github.com/nlohmann/json/pull/3544) ([Mike-Leo-Smith](https://github.com/Mike-Leo-Smith))
- BJData dimension length can not be string\_t::npos, fix \#3541 [\#3543](https://github.com/nlohmann/json/pull/3543) ([fangq](https://github.com/fangq))
- Allow disabling default enum conversions [\#3536](https://github.com/nlohmann/json/pull/3536) ([zxey](https://github.com/zxey))
- Add to\_json\(\) for std::vector\<bool\>::reference [\#3534](https://github.com/nlohmann/json/pull/3534) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- CI: Enable 32bit unit test \(3\) [\#3532](https://github.com/nlohmann/json/pull/3532) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use new CI image [\#3528](https://github.com/nlohmann/json/pull/3528) ([nlohmann](https://github.com/nlohmann))
- Fix ndarray dimension signedness, fix ndarray length overflow \(2\); add 32bit unit test [\#3523](https://github.com/nlohmann/json/pull/3523) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Small documentation fixes [\#3520](https://github.com/nlohmann/json/pull/3520) ([nlohmann](https://github.com/nlohmann))
- Add assertion to converting constructor [\#3517](https://github.com/nlohmann/json/pull/3517) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- CI: Remove -Wstrict-overflow [\#3516](https://github.com/nlohmann/json/pull/3516) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix nlohmann/json\#3513, explain is\_ndarray flag [\#3514](https://github.com/nlohmann/json/pull/3514) ([fangq](https://github.com/fangq))
- Prevent ndarray size vector from recursive use, fix nlohmann/json\#3503 [\#3505](https://github.com/nlohmann/json/pull/3505) ([fangq](https://github.com/fangq))
- prevent ndarray dimension vector from recusive array, nlohmann/json\#3500 [\#3502](https://github.com/nlohmann/json/pull/3502) ([fangq](https://github.com/fangq))
- Discard optimized containers with negative counts in UBJSON/BJData \(\#3491,\#3492,\#3490\) [\#3500](https://github.com/nlohmann/json/pull/3500) ([fangq](https://github.com/fangq))
- Update json.hpp [\#3499](https://github.com/nlohmann/json/pull/3499) ([ivanovmp](https://github.com/ivanovmp))
- Add assertion for invariant in SAX-DOM parser [\#3498](https://github.com/nlohmann/json/pull/3498) ([nlohmann](https://github.com/nlohmann))
- Add more macOS builders [\#3485](https://github.com/nlohmann/json/pull/3485) ([nlohmann](https://github.com/nlohmann))
- change bjdata ndarray flag to detect negative size, as part of \#3475 [\#3479](https://github.com/nlohmann/json/pull/3479) ([fangq](https://github.com/fangq))
- Document fuzzer usage [\#3478](https://github.com/nlohmann/json/pull/3478) ([nlohmann](https://github.com/nlohmann))
- Add build step for ICPC \(with fixes\) [\#3465](https://github.com/nlohmann/json/pull/3465) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Complete documentation for 3.11.0 [\#3464](https://github.com/nlohmann/json/pull/3464) ([nlohmann](https://github.com/nlohmann))
- Handle invalid BJData optimized type, fix \#3461 [\#3463](https://github.com/nlohmann/json/pull/3463) ([fangq](https://github.com/fangq))
- Reorganize directories [\#3462](https://github.com/nlohmann/json/pull/3462) ([nlohmann](https://github.com/nlohmann))
- Enable rapid testing and development on Compiler Explorer [\#3456](https://github.com/nlohmann/json/pull/3456) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- cpplint 1.6.0 [\#3454](https://github.com/nlohmann/json/pull/3454) ([nlohmann](https://github.com/nlohmann))
- Disable regression test for \#3070 on GCC \<8.4 [\#3451](https://github.com/nlohmann/json/pull/3451) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix C++20/gcc-12 issues \(Part 2\) [\#3446](https://github.com/nlohmann/json/pull/3446) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Overwork documentation [\#3444](https://github.com/nlohmann/json/pull/3444) ([nlohmann](https://github.com/nlohmann))
- Fix typo in basic\_json documentation [\#3439](https://github.com/nlohmann/json/pull/3439) ([jhnlee](https://github.com/jhnlee))
- Exclude std::any from implicit conversion \(fixes \#3428\) [\#3437](https://github.com/nlohmann/json/pull/3437) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Document which version introduced the macros [\#3431](https://github.com/nlohmann/json/pull/3431) ([nlohmann](https://github.com/nlohmann))
- Fix constraints on from\_json\(\) for strings \(fixes \#3171, \#3267, \#3312, \#3384\) [\#3427](https://github.com/nlohmann/json/pull/3427) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- at.md: fix typo [\#3426](https://github.com/nlohmann/json/pull/3426) ([heinemml](https://github.com/heinemml))
- Implement support for string\_view \(attempt no. 3\) [\#3423](https://github.com/nlohmann/json/pull/3423) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- CI: speedup AppVeyor builds by ~30% [\#3422](https://github.com/nlohmann/json/pull/3422) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Restore disabled check for \#3070 \(except on MSVC\) [\#3421](https://github.com/nlohmann/json/pull/3421) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Update CI image [\#3420](https://github.com/nlohmann/json/pull/3420) ([nlohmann](https://github.com/nlohmann))
- Add check if different version is also included [\#3418](https://github.com/nlohmann/json/pull/3418) ([nlohmann](https://github.com/nlohmann))
- Report the right \_\_cplusplus value for MSVC in basic\_json meta\(\) [\#3417](https://github.com/nlohmann/json/pull/3417) ([flagarde](https://github.com/flagarde))
- CI: windows-2016 has been deprecated; remove jobs [\#3416](https://github.com/nlohmann/json/pull/3416) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Re-template json\_pointer on string type [\#3415](https://github.com/nlohmann/json/pull/3415) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Refactor unit tests to use more convenient doctest assertion macros \(Part 2\) [\#3405](https://github.com/nlohmann/json/pull/3405) ([kkarbowiak](https://github.com/kkarbowiak))
- Refactor unit tests to use more convenient doctest assertion macros [\#3393](https://github.com/nlohmann/json/pull/3393) ([kkarbowiak](https://github.com/kkarbowiak))
- Improve unit testing \(Part 1\) [\#3380](https://github.com/nlohmann/json/pull/3380) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix C++20/gcc-12 issues \(Part 1\) [\#3379](https://github.com/nlohmann/json/pull/3379) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add clarification to avoid misunderstanding that cause \#3360 [\#3378](https://github.com/nlohmann/json/pull/3378) ([puffetto](https://github.com/puffetto))
- Fix ordered\_map ctor with initializer\_list \(fixes \#3343\) [\#3370](https://github.com/nlohmann/json/pull/3370) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix and update CI [\#3368](https://github.com/nlohmann/json/pull/3368) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- FetchContent\_MakeAvailable [\#3351](https://github.com/nlohmann/json/pull/3351) ([nlohmann](https://github.com/nlohmann))
- Avoid clash with Arduino defines [\#3338](https://github.com/nlohmann/json/pull/3338) ([DarkZeros](https://github.com/DarkZeros))
- Support UBJSON-derived Binary JData \(BJData\) format [\#3336](https://github.com/nlohmann/json/pull/3336) ([fangq](https://github.com/fangq))
- Make iterator operator++/--\(int\) equality-preserving [\#3332](https://github.com/nlohmann/json/pull/3332) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add note on parsing ordered\_json [\#3326](https://github.com/nlohmann/json/pull/3326) ([nlohmann](https://github.com/nlohmann))
- Fix CITATION.cff and add automatic validation of your citation metadata [\#3320](https://github.com/nlohmann/json/pull/3320) ([fdiblen](https://github.com/fdiblen))
- .github/workflows/windows.yml: Add support for Visual Studio 2022 [\#3295](https://github.com/nlohmann/json/pull/3295) ([t-b](https://github.com/t-b))
- Add maintainer targets to create source archive [\#3289](https://github.com/nlohmann/json/pull/3289) ([nlohmann](https://github.com/nlohmann))
- Fix a typo [\#3265](https://github.com/nlohmann/json/pull/3265) ([fhuberts](https://github.com/fhuberts))
- Fix typo [\#3249](https://github.com/nlohmann/json/pull/3249) ([rex4539](https://github.com/rex4539))
- Add documentation for JSON Lines [\#3247](https://github.com/nlohmann/json/pull/3247) ([nlohmann](https://github.com/nlohmann))
- Improve documentation InputType and IteratorType [\#3246](https://github.com/nlohmann/json/pull/3246) ([nlohmann](https://github.com/nlohmann))
- Remove stringstream [\#3244](https://github.com/nlohmann/json/pull/3244) ([nlohmann](https://github.com/nlohmann))
- fix \_MSC\_VER version to check for std::filesystem [\#3240](https://github.com/nlohmann/json/pull/3240) ([gcerretani](https://github.com/gcerretani))
- Add macros NLOHMANN\_DEFINE\_TYPE\_INTRUSIVE\_WITH\_DEFAULT and ...\_NON\_INTRUSIVE\_WITH\_DEFAULT [\#3143](https://github.com/nlohmann/json/pull/3143) ([pketelsen](https://github.com/pketelsen))
## [v3.10.5](https://github.com/nlohmann/json/releases/tag/v3.10.5) (2022-01-03)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.4...v3.10.5)
- \#include \<filesystem\> doesn't work with gcc-7 when `-std=c++17` is specified. [\#3203](https://github.com/nlohmann/json/issues/3203)
- Not able to use nlohmann json with c++ code built using emscripten to wasm [\#3200](https://github.com/nlohmann/json/issues/3200)
- Warning for shadowed variables [\#3188](https://github.com/nlohmann/json/issues/3188)
- Accessing missing keys on const json object leads to assert [\#3183](https://github.com/nlohmann/json/issues/3183)
- Data member is available, but null is reported, and program throws error [\#3173](https://github.com/nlohmann/json/issues/3173)
- serialization problem, from\_json need construct new object [\#3169](https://github.com/nlohmann/json/issues/3169)
- std::filesystem unavailable on macOS lower deployment targets [\#3156](https://github.com/nlohmann/json/issues/3156)
- \[json.exception.type\_error.305\] cannot use operator\[\] with a string argument with string [\#3151](https://github.com/nlohmann/json/issues/3151)
- json::dump\(\) is not compatible with C++ standards [\#3147](https://github.com/nlohmann/json/issues/3147)
- Issue with json::parse decoding codepoints [\#3142](https://github.com/nlohmann/json/issues/3142)
- Simple parse of json object thinks it should be an array [\#3136](https://github.com/nlohmann/json/issues/3136)
- How to properly read a Json string that may be null in some cases? [\#3135](https://github.com/nlohmann/json/issues/3135)
- Deadlock on create json - windows only [\#3129](https://github.com/nlohmann/json/issues/3129)
- Wrong parsing of int64 values nearest of limit [\#3126](https://github.com/nlohmann/json/issues/3126)
- ordered\_json doesn't support range based erase [\#3108](https://github.com/nlohmann/json/issues/3108)
- Apple build failed with json/single\_include/nlohmann/json.hpp:4384:57: 'path' is unavailable [\#3097](https://github.com/nlohmann/json/issues/3097)
- GCC 7.5.0 with --std=c++17: filesystem: No such file or directory [\#3090](https://github.com/nlohmann/json/issues/3090)
- Drop Travis CI [\#3087](https://github.com/nlohmann/json/issues/3087)
- ordered\_json::reset\(\) compile error with nvcc [\#3013](https://github.com/nlohmann/json/issues/3013)
- Support for unordered\_map as object\_t [\#2932](https://github.com/nlohmann/json/issues/2932)
- Compiler warning with Intel compiler, same as \#755 [\#2712](https://github.com/nlohmann/json/issues/2712)
- Compiler warnings with NVCC 11.2 [\#2676](https://github.com/nlohmann/json/issues/2676)
- some static analysis warning at line 11317 [\#1390](https://github.com/nlohmann/json/issues/1390)
- Compiling with icpc [\#755](https://github.com/nlohmann/json/issues/755)
- Fix compilation error with NVCC [\#3234](https://github.com/nlohmann/json/pull/3234) ([nlohmann](https://github.com/nlohmann))
- Remove Travis CI [\#3233](https://github.com/nlohmann/json/pull/3233) ([nlohmann](https://github.com/nlohmann))
- Add build step for NVCC and fix a warning [\#3227](https://github.com/nlohmann/json/pull/3227) ([nlohmann](https://github.com/nlohmann))
- Update cpplint [\#3225](https://github.com/nlohmann/json/pull/3225) ([nlohmann](https://github.com/nlohmann))
- Fix: Warning for shadowed variables \(\#3188\) [\#3193](https://github.com/nlohmann/json/pull/3193) ([kernie](https://github.com/kernie))
- Fix FAQ hyperlink typo in readme [\#3148](https://github.com/nlohmann/json/pull/3148) ([Prince-Mendiratta](https://github.com/Prince-Mendiratta))
- Docs: Update `skip_comments` to `ignore_comments` [\#3145](https://github.com/nlohmann/json/pull/3145) ([daniel-kun](https://github.com/daniel-kun))
- fix typos in documentation [\#3140](https://github.com/nlohmann/json/pull/3140) ([striezel](https://github.com/striezel))
- Fix spelling [\#3125](https://github.com/nlohmann/json/pull/3125) ([axic](https://github.com/axic))
- Extend std specializations [\#3121](https://github.com/nlohmann/json/pull/3121) ([nlohmann](https://github.com/nlohmann))
- Add missing erase\(first, last\) function to ordered\_map [\#3109](https://github.com/nlohmann/json/pull/3109) ([nlohmann](https://github.com/nlohmann))
- Fix typos in operator\[\] documentation [\#3102](https://github.com/nlohmann/json/pull/3102) ([axnsan12](https://github.com/axnsan12))
- Add C++17 copies of the test binaries [\#3101](https://github.com/nlohmann/json/pull/3101) ([nlohmann](https://github.com/nlohmann))
- Add examples for parsing from iterator pair [\#3100](https://github.com/nlohmann/json/pull/3100) ([nlohmann](https://github.com/nlohmann))
- Update CI [\#3088](https://github.com/nlohmann/json/pull/3088) ([nlohmann](https://github.com/nlohmann))
- Consolidate documentation [\#3071](https://github.com/nlohmann/json/pull/3071) ([nlohmann](https://github.com/nlohmann))
- Add recursive update function [\#3069](https://github.com/nlohmann/json/pull/3069) ([nlohmann](https://github.com/nlohmann))
## [v3.10.4](https://github.com/nlohmann/json/releases/tag/v3.10.4) (2021-10-16)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.3...v3.10.4)
- Compiler error in output serializer due to 'incompatible initializer' [\#3081](https://github.com/nlohmann/json/issues/3081)
- Strange behaviour when using std::sort on std::vector\<json\> [\#3080](https://github.com/nlohmann/json/issues/3080)
- Unhandled exception: nlohmann::detail::parse\_error [\#3078](https://github.com/nlohmann/json/issues/3078)
- explicit constructor with default does not compile [\#3077](https://github.com/nlohmann/json/issues/3077)
- Parse an object but get an array using GCC [\#3076](https://github.com/nlohmann/json/issues/3076)
- Version 3.10.3 breaks backward-compatibility with 3.10.2 [\#3070](https://github.com/nlohmann/json/issues/3070)
- Feature request, Add to\_json/from\_json to align with other to/from binary api. [\#3067](https://github.com/nlohmann/json/issues/3067)
- vcpkg is out of date [\#3066](https://github.com/nlohmann/json/issues/3066)
- Revert invalid fix [\#3082](https://github.com/nlohmann/json/pull/3082) ([nlohmann](https://github.com/nlohmann))
- Allow to use get with explicit constructor [\#3079](https://github.com/nlohmann/json/pull/3079) ([nlohmann](https://github.com/nlohmann))
- fix std::filesystem::path regression [\#3073](https://github.com/nlohmann/json/pull/3073) ([theodelrieu](https://github.com/theodelrieu))
## [v3.10.3](https://github.com/nlohmann/json/releases/tag/v3.10.3) (2021-10-08)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.2...v3.10.3)
- Parsing an emtpy string returns a string with size 1 instead of expected 0 [\#3057](https://github.com/nlohmann/json/issues/3057)
- Linking error "duplicate symbol: std::type\_info::operator==" on static build with MinGW [\#3042](https://github.com/nlohmann/json/issues/3042)
- Yet another assertion failure when inserting into arrays with JSON\_DIAGNOSTICS set [\#3032](https://github.com/nlohmann/json/issues/3032)
- accept and parse function not work well with a pure number string [\#3029](https://github.com/nlohmann/json/issues/3029)
- push\_back doesn't work for serializing containers [\#3027](https://github.com/nlohmann/json/issues/3027)
- Strange behaviour when creating array with single element [\#3025](https://github.com/nlohmann/json/issues/3025)
- Input ordered\_json doesn't work [\#3023](https://github.com/nlohmann/json/issues/3023)
- Issue iterating through 'items' [\#3021](https://github.com/nlohmann/json/issues/3021)
- Cannot spell the namespace right [\#3015](https://github.com/nlohmann/json/issues/3015)
- JSON Parse error when reading json object from file [\#3011](https://github.com/nlohmann/json/issues/3011)
- Parent pointer not properly set when using update\(\) [\#3007](https://github.com/nlohmann/json/issues/3007)
- Overwriting terminated null character [\#3001](https://github.com/nlohmann/json/issues/3001)
- 'operator =' is ambiguous on VS2017 [\#2997](https://github.com/nlohmann/json/issues/2997)
- JSON Patch for Array Elements [\#2994](https://github.com/nlohmann/json/issues/2994)
- JSON Parse throwing error [\#2983](https://github.com/nlohmann/json/issues/2983)
- to\_{binary format} does not provide a mechanism for specifying a custom allocator for the returned type. [\#2982](https://github.com/nlohmann/json/issues/2982)
- 3.10.1 zip json.hpp has version number 3.10.0 instead of 3.10.1 [\#2973](https://github.com/nlohmann/json/issues/2973)
- Assertion failure when serializing array with JSON\_DIAGNOSTICS set [\#2926](https://github.com/nlohmann/json/issues/2926)
- Fix Clang version [\#3040](https://github.com/nlohmann/json/pull/3040) ([nlohmann](https://github.com/nlohmann))
- Fix assertion failure for JSON\_DIAGNOSTICS [\#3037](https://github.com/nlohmann/json/pull/3037) ([carlsmedstad](https://github.com/carlsmedstad))
- meta: fix is\_compatible/constructible traits [\#3020](https://github.com/nlohmann/json/pull/3020) ([theodelrieu](https://github.com/theodelrieu))
- Set parent pointers for values inserted via update\(\) \(fixes \#3007\). [\#3008](https://github.com/nlohmann/json/pull/3008) ([AnthonyVH](https://github.com/AnthonyVH))
- Allow allocators for output\_vector\_adapter [\#2989](https://github.com/nlohmann/json/pull/2989) ([nlohmann](https://github.com/nlohmann))
- Re-add Clang 12 [\#2986](https://github.com/nlohmann/json/pull/2986) ([nlohmann](https://github.com/nlohmann))
- Use new Docker image [\#2981](https://github.com/nlohmann/json/pull/2981) ([nlohmann](https://github.com/nlohmann))
- Update docset generation script [\#2967](https://github.com/nlohmann/json/pull/2967) ([nlohmann](https://github.com/nlohmann))
## [v3.10.2](https://github.com/nlohmann/json/releases/tag/v3.10.2) (2021-08-26)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.1...v3.10.2)
- Annoying -Wundef on new JSON\_DIAGNOSTICS macro [\#2975](https://github.com/nlohmann/json/issues/2975)
- += issue with multiple redirection. [\#2970](https://github.com/nlohmann/json/issues/2970)
- "incomplete type ‘nlohmann::detail::wide\_string\_input\_helper" compilation error [\#2969](https://github.com/nlohmann/json/issues/2969)
- Fix -Wunused warnings on JSON\_DIAGNOSTICS [\#2976](https://github.com/nlohmann/json/pull/2976) ([gcerretani](https://github.com/gcerretani))
## [v3.10.1](https://github.com/nlohmann/json/releases/tag/v3.10.1) (2021-08-24)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.0...v3.10.1)
- JSON\_DIAGNOSTICS assertion for ordered\_json [\#2962](https://github.com/nlohmann/json/issues/2962)
- Inserting in unordered json using a pointer retains the leading slash [\#2958](https://github.com/nlohmann/json/issues/2958)
- Test \#9: test-cbor test case sample.json fails in debug mode - Stack overflow [\#2955](https://github.com/nlohmann/json/issues/2955)
- 3.10.0 broke at least the Bear project [\#2953](https://github.com/nlohmann/json/issues/2953)
- 2 tests fail in 3.10.0: cmake\_fetch\_content\_configure, cmake\_fetch\_content\_build [\#2951](https://github.com/nlohmann/json/issues/2951)
- ctest \(58+60,/67 cmake\_import\_configure\) fails when build with -D JSON\_Install:BOOL=OFF because of missing nlohmann\_jsonTargets.cmake [\#2946](https://github.com/nlohmann/json/issues/2946)
- Document vcpkg usage [\#2944](https://github.com/nlohmann/json/issues/2944)
- Linker error LNK2005 when compiling \(x64\) json-3.10.0.zip with Visual Studio 2019 16.11.1 [\#2941](https://github.com/nlohmann/json/issues/2941)
- Move Travis jobs to travis-ci.com [\#2938](https://github.com/nlohmann/json/issues/2938)
- Fixed typo in docs/api/basic\_json/parse.md [\#2968](https://github.com/nlohmann/json/pull/2968) ([mbadhan](https://github.com/mbadhan))
- Add link to Homebrew package [\#2966](https://github.com/nlohmann/json/pull/2966) ([nlohmann](https://github.com/nlohmann))
- Fix parent update for diagnostics with ordered\_json [\#2963](https://github.com/nlohmann/json/pull/2963) ([nlohmann](https://github.com/nlohmann))
- Set stack size for some unit tests when using MSVC [\#2961](https://github.com/nlohmann/json/pull/2961) ([nlohmann](https://github.com/nlohmann))
- Add regression test [\#2960](https://github.com/nlohmann/json/pull/2960) ([nlohmann](https://github.com/nlohmann))
- Update Travis badge [\#2959](https://github.com/nlohmann/json/pull/2959) ([nlohmann](https://github.com/nlohmann))
- Fix some extra ";" clang warnings [\#2957](https://github.com/nlohmann/json/pull/2957) ([Hallot](https://github.com/Hallot))
- Add documentation for integration via vcpkg [\#2954](https://github.com/nlohmann/json/pull/2954) ([nlohmann](https://github.com/nlohmann))
- Avoid duplicate AppVeyor builds [\#2952](https://github.com/nlohmann/json/pull/2952) ([nlohmann](https://github.com/nlohmann))
- 🚨 fix gdb\_pretty\_printer failure on basic types [\#2950](https://github.com/nlohmann/json/pull/2950) ([senyai](https://github.com/senyai))
- Add header to use value\_t [\#2948](https://github.com/nlohmann/json/pull/2948) ([nlohmann](https://github.com/nlohmann))
- Skip some tests if JSON\_Install is not set [\#2947](https://github.com/nlohmann/json/pull/2947) ([nlohmann](https://github.com/nlohmann))
- Remove outdated json\_unit test binary [\#2945](https://github.com/nlohmann/json/pull/2945) ([nlohmann](https://github.com/nlohmann))
- Updating the Homebrew Command [\#2943](https://github.com/nlohmann/json/pull/2943) ([amirmasoudabdol](https://github.com/amirmasoudabdol))
## [v3.10.0](https://github.com/nlohmann/json/releases/tag/v3.10.0) (2021-08-17)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.9.1...v3.10.0)
- Latest version 3.9.1 uses throw instead of JSON\_THROW in the amalgamated json.hpp file [\#2934](https://github.com/nlohmann/json/issues/2934)
- Copy to a variable inside a Structure [\#2933](https://github.com/nlohmann/json/issues/2933)
- warning C4068: unknown pragma 'GCC' on MSVC/cl [\#2924](https://github.com/nlohmann/json/issues/2924)
- Errors during ninja test [\#2918](https://github.com/nlohmann/json/issues/2918)
- compiler warning: "not return a value" [\#2917](https://github.com/nlohmann/json/issues/2917)
- Comparison floating points causes warning [\#2909](https://github.com/nlohmann/json/issues/2909)
- Why can't I have std::vector\<json&\> testList? [\#2900](https://github.com/nlohmann/json/issues/2900)
- \[json.hpp\] from releases doesnt work [\#2897](https://github.com/nlohmann/json/issues/2897)
- g++ \(11\) -Wuseless-cast gives lots of warnings [\#2893](https://github.com/nlohmann/json/issues/2893)
- Cannot serialize and immediatly deserialize json to/from bson [\#2892](https://github.com/nlohmann/json/issues/2892)
- Floating-point precision conversion error [\#2876](https://github.com/nlohmann/json/issues/2876)
- How to avoid escaping for an already escaped string in .dump\(\) [\#2870](https://github.com/nlohmann/json/issues/2870)
- can't parse std::vector\<std::byte\> [\#2869](https://github.com/nlohmann/json/issues/2869)
- ASAN detects memory leaks [\#2865](https://github.com/nlohmann/json/issues/2865)
- Binary subtype field cannot represent all CBOR tags [\#2863](https://github.com/nlohmann/json/issues/2863)
- string literals possibly being parsed as another type due to the presence of only digits and full-stops [\#2852](https://github.com/nlohmann/json/issues/2852)
- json::parse\(\) works only with absolute paths [\#2851](https://github.com/nlohmann/json/issues/2851)
- Compiler Warnings on Raspberry Pi OS [\#2850](https://github.com/nlohmann/json/issues/2850)
- Braced initialization and aggregate initialization behavior is different for `json::array()` function call. [\#2848](https://github.com/nlohmann/json/issues/2848)
- 3.9.1: test suite is failing [\#2845](https://github.com/nlohmann/json/issues/2845)
- Documentation for macro JSON\_NO\_IO is missing [\#2842](https://github.com/nlohmann/json/issues/2842)
- Assertion failure when inserting into arrays with JSON\_DIAGNOSTICS set [\#2838](https://github.com/nlohmann/json/issues/2838)
- HELP! There is a memory leak in the code?! [\#2837](https://github.com/nlohmann/json/issues/2837)
- Elegant conversion of a 2-D-json array to a standard C++ array [\#2805](https://github.com/nlohmann/json/issues/2805)
- Swift Package Manager support [\#2802](https://github.com/nlohmann/json/issues/2802)
- Referencing a subkey which doesn't exist gives crash [\#2797](https://github.com/nlohmann/json/issues/2797)
- Failed benchmark due to renamed branch [\#2796](https://github.com/nlohmann/json/issues/2796)
- Build Errors with VS 2019 and json Version 3.9.1 when attempting to replicate SAX Example [\#2782](https://github.com/nlohmann/json/issues/2782)
- Value with spaces cannot be parsed [\#2781](https://github.com/nlohmann/json/issues/2781)
- \[Question\] CBOR rfc support. [\#2779](https://github.com/nlohmann/json/issues/2779)
- Using JSON.hpp header file in Visual Studio 2013 \(C++ Project\) [\#2775](https://github.com/nlohmann/json/issues/2775)
- compilation error on clang-8 + C++17 [\#2759](https://github.com/nlohmann/json/issues/2759)
- Undefined symbol EOF [\#2755](https://github.com/nlohmann/json/issues/2755)
- Parsing a string into json object behaves differently under g++ and MinGW compilers. [\#2746](https://github.com/nlohmann/json/issues/2746)
- big git history size [\#2742](https://github.com/nlohmann/json/issues/2742)
- How to get reference of std::vector\<T\> [\#2735](https://github.com/nlohmann/json/issues/2735)
- CMake failure in VS2019 Community [\#2734](https://github.com/nlohmann/json/issues/2734)
- Possibility to use with custom c++ version to use in intel sgx enclaves [\#2730](https://github.com/nlohmann/json/issues/2730)
- Possibility to use without the dependency to file io and streams to use in intel sgx enclaves [\#2728](https://github.com/nlohmann/json/issues/2728)
- error C2784& error C2839... in my visual studio 2015 compiler [\#2726](https://github.com/nlohmann/json/issues/2726)
- `-fno-expection` not respected anymore in 3.9.1 [\#2725](https://github.com/nlohmann/json/issues/2725)
- When exceptions disabled with JSON\_NOEXCEPTION, lib just aborts without any message [\#2724](https://github.com/nlohmann/json/issues/2724)
- Critical error detected c0000374 on windows10 msvc 2019 16.8.5 [\#2710](https://github.com/nlohmann/json/issues/2710)
- unused parameter error/warning [\#2706](https://github.com/nlohmann/json/issues/2706)
- How to store data into a Map from json file [\#2691](https://github.com/nlohmann/json/issues/2691)
- Tests do not compile with pre-release glibc [\#2686](https://github.com/nlohmann/json/issues/2686)
- compile errors .... chromium-style [\#2680](https://github.com/nlohmann/json/issues/2680)
- .dump\(\) not allowing compact form [\#2678](https://github.com/nlohmann/json/issues/2678)
- error: no matching function for call to ‘nlohmann::basic\_json\<\>::value\(int, std::set\<int\>&\)’ [\#2671](https://github.com/nlohmann/json/issues/2671)
- Compiler warning: unused parameter [\#2668](https://github.com/nlohmann/json/issues/2668)
- Deserializing to a struct as shown on the project homepage throws compile time errors [\#2665](https://github.com/nlohmann/json/issues/2665)
- Unable to compile on MSVC 2019 with SDL checking enabled: This function or variable may be unsafe [\#2664](https://github.com/nlohmann/json/issues/2664)
- terminating with uncaught exception of type nlohmann::detail::type\_error: \[json.exception.type\_error.302\] type must be array, but is object [\#2661](https://github.com/nlohmann/json/issues/2661)
- unused-parameter on OSX when Diagnostics is off [\#2658](https://github.com/nlohmann/json/issues/2658)
- std::pair wrong serialization [\#2655](https://github.com/nlohmann/json/issues/2655)
- The result of json is\_number\_integer\(\) function is wrong when read a json file [\#2653](https://github.com/nlohmann/json/issues/2653)
- 2 backslash cause problem [\#2652](https://github.com/nlohmann/json/issues/2652)
- No support for using an external/system copy of Hedley [\#2651](https://github.com/nlohmann/json/issues/2651)
- error: incomplete type 'qfloat16' used in type trait expression [\#2650](https://github.com/nlohmann/json/issues/2650)
- Unused variable in exception class when not using improved diagnostics [\#2646](https://github.com/nlohmann/json/issues/2646)
- I am trying to do this - converting from wstring works incorrectly! [\#2642](https://github.com/nlohmann/json/issues/2642)
- Exception 207 On ARM Processor During Literal String Parsing [\#2634](https://github.com/nlohmann/json/issues/2634)
- double free or corruption \(!prev\) error on Json push\_back and write [\#2632](https://github.com/nlohmann/json/issues/2632)
- nlohmann::detail::parse\_error: syntax error while parsing CBOR string: expected length specification \(0x60-0x7B\) or indefinite string type \(0x7F\) [\#2629](https://github.com/nlohmann/json/issues/2629)
- please allow disabling implicit conversions in non-single-file use [\#2621](https://github.com/nlohmann/json/issues/2621)
- Preserve decimal formatting [\#2618](https://github.com/nlohmann/json/issues/2618)
- Visual Studio Visual Assist code issues reported by VA code inspection of file json.hpp [\#2615](https://github.com/nlohmann/json/issues/2615)
- Missing get function and no viable overloaded '=' on mac [\#2610](https://github.com/nlohmann/json/issues/2610)
- corruption when parse from string [\#2603](https://github.com/nlohmann/json/issues/2603)
- Parse from byte-vector results in compile error [\#2602](https://github.com/nlohmann/json/issues/2602)
- Memory leak when working on ARM Linux [\#2601](https://github.com/nlohmann/json/issues/2601)
- Unhandled exception in test-cbor.exe Stack overflow when debugging project with Visual Studio 2019 16.7.7 compiled with c++17 or c++latest [\#2598](https://github.com/nlohmann/json/issues/2598)
- Error in download\_test\_data.vcxproj when compiling with Visual Studio 2019 16.7.7 Professional msbuild on Windows 10 2004 Professional [\#2594](https://github.com/nlohmann/json/issues/2594)
- Warnings C4715 and C4127 when building json-3.9.1 with Visual Studio 2019 16.7.7 [\#2592](https://github.com/nlohmann/json/issues/2592)
- I tried some change to dump\(\) for \[1,2,3...\] [\#2584](https://github.com/nlohmann/json/issues/2584)
- try/catch block does not catch parsing error [\#2579](https://github.com/nlohmann/json/issues/2579)
- Serializing uint64\_t is broken for large values [\#2578](https://github.com/nlohmann/json/issues/2578)
- deserializing arrays should be part of the library [\#2575](https://github.com/nlohmann/json/issues/2575)
- Deserialization to std::array with non-default constructable types fails [\#2574](https://github.com/nlohmann/json/issues/2574)
- Compilation error when trying to use same type for number\_integer\_t and number\_unsigned\_t in basic\_json template specification. [\#2573](https://github.com/nlohmann/json/issues/2573)
- compiler error: directive output may be truncated writing between 2 and 8 bytes [\#2572](https://github.com/nlohmann/json/issues/2572)
- Incorrect convert map to json when key cannot construct an string i.e. int [\#2564](https://github.com/nlohmann/json/issues/2564)
- no matching function for call to ‘nlohmann::basic\_json\<\>::basic\_json\(\<brace-enclosed initializer list\>\)’ [\#2559](https://github.com/nlohmann/json/issues/2559)
- type\_error factory creates a dangling pointer \(in VisualStudio 2019\) [\#2535](https://github.com/nlohmann/json/issues/2535)
- Cannot assign from ordered\_json vector\<CustomStruct\> to value in not ordered json [\#2528](https://github.com/nlohmann/json/issues/2528)
- Qt6: Break changes [\#2519](https://github.com/nlohmann/json/issues/2519)
- valgrind memcheck Illegal instruction when use nlohmann::json::parse [\#2518](https://github.com/nlohmann/json/issues/2518)
- Buffer overflow [\#2515](https://github.com/nlohmann/json/issues/2515)
- Including CTest in the top-level CMakeLists.txt sets BUILD\_TESTING=ON for parent projects [\#2513](https://github.com/nlohmann/json/issues/2513)
- Compilation error when using NLOHMANN\_JSON\_SERIALIZE\_ENUM ordered\_json on libc++ [\#2491](https://github.com/nlohmann/json/issues/2491)
- Missing "void insert\( InputIt first, InputIt last \);" overload in nlohmann::ordered\_map [\#2490](https://github.com/nlohmann/json/issues/2490)
- Could not find a package configuration file provided by "nlohmann\_json" [\#2482](https://github.com/nlohmann/json/issues/2482)
- json becomes empty for unknown reason [\#2470](https://github.com/nlohmann/json/issues/2470)
- Using std::wstring as StringType fails compiling [\#2459](https://github.com/nlohmann/json/issues/2459)
- Sample code in GIF slide outdated \(cannot use emplace\(\) with array\) [\#2457](https://github.com/nlohmann/json/issues/2457)
- from\_json\<std::wstring\> is treated as an array on latest MSVC [\#2453](https://github.com/nlohmann/json/issues/2453)
- MemorySanitizer: use-of-uninitialized-value [\#2449](https://github.com/nlohmann/json/issues/2449)
- I need help [\#2441](https://github.com/nlohmann/json/issues/2441)
- type conversion failing with clang ext\_vector\_type [\#2436](https://github.com/nlohmann/json/issues/2436)
- json::parse\(\) can't be resolved under specific circumstances [\#2427](https://github.com/nlohmann/json/issues/2427)
- from\_\*\(ptr, len\) deprecation [\#2426](https://github.com/nlohmann/json/issues/2426)
- Error ONLY in release mode [\#2425](https://github.com/nlohmann/json/issues/2425)
- "Custom data source" exemple make no sense [\#2423](https://github.com/nlohmann/json/issues/2423)
- Refuses to compile in project [\#2419](https://github.com/nlohmann/json/issues/2419)
- Compilation failure of tests with C++20 standard \(caused by change of u8 literals\) [\#2413](https://github.com/nlohmann/json/issues/2413)
- No matching function for call to 'input\_adapter' under Xcode of with nlohmann version 3.9.1 [\#2412](https://github.com/nlohmann/json/issues/2412)
- Git tags are not valid semvers [\#2409](https://github.com/nlohmann/json/issues/2409)
- after dump, stderr output disappear [\#2403](https://github.com/nlohmann/json/issues/2403)
- Using custom string. [\#2398](https://github.com/nlohmann/json/issues/2398)
- value\(\) throws unhandled exception for partially specified json object [\#2393](https://github.com/nlohmann/json/issues/2393)
- assertion on runtime causes program to stop when accessing const json with missing key [\#2392](https://github.com/nlohmann/json/issues/2392)
- Usage with -fno-elide-constructors causes dump\(\) output to be array of `null`s [\#2387](https://github.com/nlohmann/json/issues/2387)
- Build fails with clang-cl due to override of CMAKE\_CXX\_COMPILER\(?\) [\#2384](https://github.com/nlohmann/json/issues/2384)
- std::optional not working with primitive types [\#2383](https://github.com/nlohmann/json/issues/2383)
- Unexpected array when initializing a json const& on gcc 4.8.5 using uniform syntax [\#2370](https://github.com/nlohmann/json/issues/2370)
- setprecision support [\#2362](https://github.com/nlohmann/json/issues/2362)
- json::parse\(allow\_exceptions = false\) documentation is misleading. [\#2360](https://github.com/nlohmann/json/issues/2360)
- std::begin and std::end usage without specifying std namespace [\#2359](https://github.com/nlohmann/json/issues/2359)
- Custom object conversion to json hangs in background thread [\#2358](https://github.com/nlohmann/json/issues/2358)
- Add support of nullable fields to NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE and NLOHMANN\_DEFINE\_TYPE\_INTRUSIVE [\#2356](https://github.com/nlohmann/json/issues/2356)
- the portfile for the vcpkg is not working. [\#2351](https://github.com/nlohmann/json/issues/2351)
- Compiler warns of implicit fallthrough when defining preprocessor macro NDEBUG [\#2348](https://github.com/nlohmann/json/issues/2348)
- Compile error on Intel compiler running in Windows [\#2346](https://github.com/nlohmann/json/issues/2346)
- Build error caused by overwriting CMAKE\_CXX\_COMPILER [\#2343](https://github.com/nlohmann/json/issues/2343)
- Error: an attribute list cannot appear here JSON\_HEDLEY\_DEPRECATED\_FOR [\#2342](https://github.com/nlohmann/json/issues/2342)
- compiler warning [\#2341](https://github.com/nlohmann/json/issues/2341)
- 3.9.0: tests make build non-reproducible [\#2324](https://github.com/nlohmann/json/issues/2324)
- Initialization different between gcc/clang [\#2311](https://github.com/nlohmann/json/issues/2311)
- Attempt to `get()` a numeric value as a type which cannot represent it should throw [\#2310](https://github.com/nlohmann/json/issues/2310)
- Surprising behaviour with overloaded operators [\#2256](https://github.com/nlohmann/json/issues/2256)
- ADL issue in input\_adapter [\#2248](https://github.com/nlohmann/json/issues/2248)
- Output adapters should be templated. [\#2172](https://github.com/nlohmann/json/issues/2172)
- error when using nlohmann::json, std::function and std::bind [\#2147](https://github.com/nlohmann/json/issues/2147)
- Remove undefined behavior for const operator\[\] [\#2111](https://github.com/nlohmann/json/issues/2111)
- json\({}\) gives null instead of empty object with GCC and -std=c++17 [\#2046](https://github.com/nlohmann/json/issues/2046)
- GDB pretty printing support [\#1952](https://github.com/nlohmann/json/issues/1952)
- Always compile tests with all warnings enabled and error out on warnings [\#1798](https://github.com/nlohmann/json/issues/1798)
- Fixes Cppcheck warnings [\#1759](https://github.com/nlohmann/json/issues/1759)
- How to get position info or parser context with custom from\_json\(\) that may throw exceptions? [\#1508](https://github.com/nlohmann/json/issues/1508)
- Suggestion to improve value\(\) accessors with respect to move semantics [\#1275](https://github.com/nlohmann/json/issues/1275)
- Add Key name to Exception [\#932](https://github.com/nlohmann/json/issues/932)
- Overwork warning flags [\#2936](https://github.com/nlohmann/json/pull/2936) ([nlohmann](https://github.com/nlohmann))
- Treat MSVC warnings as errors [\#2930](https://github.com/nlohmann/json/pull/2930) ([nlohmann](https://github.com/nlohmann))
- All: fix warnings when compiling with -Wswitch-enum [\#2927](https://github.com/nlohmann/json/pull/2927) ([fhuberts](https://github.com/fhuberts))
- Guard GCC pragmas [\#2925](https://github.com/nlohmann/json/pull/2925) ([nlohmann](https://github.com/nlohmann))
- Supress -Wfloat-equal on intended float comparisions [\#2911](https://github.com/nlohmann/json/pull/2911) ([Finkman](https://github.com/Finkman))
- Fix binary subtypes [\#2908](https://github.com/nlohmann/json/pull/2908) ([nlohmann](https://github.com/nlohmann))
- Fix useless-cast warnings [\#2902](https://github.com/nlohmann/json/pull/2902) ([nlohmann](https://github.com/nlohmann))
- Add regression test [\#2898](https://github.com/nlohmann/json/pull/2898) ([nlohmann](https://github.com/nlohmann))
- Refactor Unicode tests [\#2889](https://github.com/nlohmann/json/pull/2889) ([nlohmann](https://github.com/nlohmann))
- CMake cleanup [\#2885](https://github.com/nlohmann/json/pull/2885) ([nlohmann](https://github.com/nlohmann))
- Avoid string in case of empty CBOR objects [\#2879](https://github.com/nlohmann/json/pull/2879) ([nlohmann](https://github.com/nlohmann))
- Suppress C4127 warning in unit-json\_pointer.cpp [\#2875](https://github.com/nlohmann/json/pull/2875) ([nlohmann](https://github.com/nlohmann))
- Fix truncation warning [\#2874](https://github.com/nlohmann/json/pull/2874) ([nlohmann](https://github.com/nlohmann))
- Fix memory leak in to\_json [\#2872](https://github.com/nlohmann/json/pull/2872) ([nlohmann](https://github.com/nlohmann))
- Fix assertion failure in diagnostics [\#2866](https://github.com/nlohmann/json/pull/2866) ([nlohmann](https://github.com/nlohmann))
- Update documentation [\#2861](https://github.com/nlohmann/json/pull/2861) ([nlohmann](https://github.com/nlohmann))
- Consistency with `using` in README.md [\#2826](https://github.com/nlohmann/json/pull/2826) ([justanotheranonymoususer](https://github.com/justanotheranonymoususer))
- Properly constrain the basic\_json conversion operator [\#2825](https://github.com/nlohmann/json/pull/2825) ([ldionne](https://github.com/ldionne))
- Fix CI [\#2817](https://github.com/nlohmann/json/pull/2817) ([nlohmann](https://github.com/nlohmann))
- Specified git branch for google benchmark fetch in benchmark test [\#2795](https://github.com/nlohmann/json/pull/2795) ([grafail](https://github.com/grafail))
- Add C++ standards to macOS matrix [\#2790](https://github.com/nlohmann/json/pull/2790) ([nlohmann](https://github.com/nlohmann))
- Update URLs to HTTPS [\#2789](https://github.com/nlohmann/json/pull/2789) ([TotalCaesar659](https://github.com/TotalCaesar659))
- Link to Conan Center package added [\#2771](https://github.com/nlohmann/json/pull/2771) ([offa](https://github.com/offa))
- Keep consistent formatting [\#2770](https://github.com/nlohmann/json/pull/2770) ([jasmcaus](https://github.com/jasmcaus))
- Add a cmake option to use SYSTEM in target\_include\_directories [\#2762](https://github.com/nlohmann/json/pull/2762) ([jpl-mac](https://github.com/jpl-mac))
- replace EOF with std::char\_traits\<char\>::eof\(\) [\#2756](https://github.com/nlohmann/json/pull/2756) ([nlohmann](https://github.com/nlohmann))
- Fix typo in README [\#2754](https://github.com/nlohmann/json/pull/2754) ([mortenfyhn](https://github.com/mortenfyhn))
- Update documentation [\#2749](https://github.com/nlohmann/json/pull/2749) ([nlohmann](https://github.com/nlohmann))
- Add documentation for numbers [\#2747](https://github.com/nlohmann/json/pull/2747) ([nlohmann](https://github.com/nlohmann))
- Use Clang 12 in CI [\#2737](https://github.com/nlohmann/json/pull/2737) ([nlohmann](https://github.com/nlohmann))
- Fixes \#2730 [\#2731](https://github.com/nlohmann/json/pull/2731) ([theShmoo](https://github.com/theShmoo))
- Possibility to use without the dependency to file io and streams to use in intel sgx enclaves [\#2729](https://github.com/nlohmann/json/pull/2729) ([theShmoo](https://github.com/theShmoo))
- Update json.hpp [\#2707](https://github.com/nlohmann/json/pull/2707) ([raduteo](https://github.com/raduteo))
- pkg-config.pc.in: Don't concatenate paths [\#2690](https://github.com/nlohmann/json/pull/2690) ([doronbehar](https://github.com/doronbehar))
- add more CI steps [\#2689](https://github.com/nlohmann/json/pull/2689) ([nlohmann](https://github.com/nlohmann))
- Update doctest from 2.4.4 to 2.4.6 \(fixes \#2686\) [\#2687](https://github.com/nlohmann/json/pull/2687) ([musicinmybrain](https://github.com/musicinmybrain))
- License fix [\#2683](https://github.com/nlohmann/json/pull/2683) ([nlohmann](https://github.com/nlohmann))
- Update parse\_exceptions.md - correct `json::exception::parse_error` [\#2679](https://github.com/nlohmann/json/pull/2679) ([frasermarlow](https://github.com/frasermarlow))
- Remove HEDLEY annotation from exception::what\(\) [\#2673](https://github.com/nlohmann/json/pull/2673) ([remyjette](https://github.com/remyjette))
- Fix amount of entries in the json object [\#2659](https://github.com/nlohmann/json/pull/2659) ([abbaswasim](https://github.com/abbaswasim))
- Fix missing 1.78 in example in README.md [\#2625](https://github.com/nlohmann/json/pull/2625) ([wawiesel](https://github.com/wawiesel))
- Add GDB pretty printer [\#2607](https://github.com/nlohmann/json/pull/2607) ([nlohmann](https://github.com/nlohmann))
- readme: fix tilde character display [\#2582](https://github.com/nlohmann/json/pull/2582) ([bl-ue](https://github.com/bl-ue))
- Add support for deserialization of STL containers of non-default constructable types \(fixes \#2574\). [\#2576](https://github.com/nlohmann/json/pull/2576) ([AnthonyVH](https://github.com/AnthonyVH))
- Better diagnostics [\#2562](https://github.com/nlohmann/json/pull/2562) ([nlohmann](https://github.com/nlohmann))
- CI targets [\#2561](https://github.com/nlohmann/json/pull/2561) ([nlohmann](https://github.com/nlohmann))
- Add switch to skip non-reproducible tests. [\#2560](https://github.com/nlohmann/json/pull/2560) ([nlohmann](https://github.com/nlohmann))
- Fix compilation of input\_adapter\(container\) in edge cases [\#2553](https://github.com/nlohmann/json/pull/2553) ([jasujm](https://github.com/jasujm))
- Allow parsing from std::byte containers [\#2550](https://github.com/nlohmann/json/pull/2550) ([nlohmann](https://github.com/nlohmann))
- Travis doesn't run any tests in C++17 mode [\#2540](https://github.com/nlohmann/json/pull/2540) ([karzhenkov](https://github.com/karzhenkov))
- Doctest is updated to v2.4.3 [\#2538](https://github.com/nlohmann/json/pull/2538) ([YarikTH](https://github.com/YarikTH))
- Fix warnings [\#2537](https://github.com/nlohmann/json/pull/2537) ([nlohmann](https://github.com/nlohmann))
- Fix a shadowing warning [\#2536](https://github.com/nlohmann/json/pull/2536) ([nlohmann](https://github.com/nlohmann))
- Clarify license of is\_complete\_type implementation [\#2534](https://github.com/nlohmann/json/pull/2534) ([nlohmann](https://github.com/nlohmann))
- Do not unconditionally redefine C++14 constructs [\#2533](https://github.com/nlohmann/json/pull/2533) ([nlohmann](https://github.com/nlohmann))
- Doctest is updated to v2.4.1 [\#2525](https://github.com/nlohmann/json/pull/2525) ([YarikTH](https://github.com/YarikTH))
- Add MAIN\_PROJECT check for test and install options [\#2514](https://github.com/nlohmann/json/pull/2514) ([globberwops](https://github.com/globberwops))
- Ranged insert test section is added in unit-ordered\_json.cpp [\#2512](https://github.com/nlohmann/json/pull/2512) ([YarikTH](https://github.com/YarikTH))
- Add asserts to suppress C28020 [\#2447](https://github.com/nlohmann/json/pull/2447) ([jbzdarkid](https://github.com/jbzdarkid))
- Change argument name "subtype" in byte\_container\_with\_subtype [\#2444](https://github.com/nlohmann/json/pull/2444) ([linev](https://github.com/linev))
- 📝 add CPM.Cmake example [\#2406](https://github.com/nlohmann/json/pull/2406) ([leozz37](https://github.com/leozz37))
- Fix move constructor of json\_ref [\#2405](https://github.com/nlohmann/json/pull/2405) ([karzhenkov](https://github.com/karzhenkov))
- Properly select "Release" build for Travis [\#2375](https://github.com/nlohmann/json/pull/2375) ([karzhenkov](https://github.com/karzhenkov))
- Update Hedley [\#2367](https://github.com/nlohmann/json/pull/2367) ([nlohmann](https://github.com/nlohmann))
- Fix and extend documentation of discarded values [\#2363](https://github.com/nlohmann/json/pull/2363) ([nlohmann](https://github.com/nlohmann))
- Fix typos in documentation [\#2354](https://github.com/nlohmann/json/pull/2354) ([rbuch](https://github.com/rbuch))
- Remove "\#define private public" from tests [\#2352](https://github.com/nlohmann/json/pull/2352) ([nlohmann](https://github.com/nlohmann))
- Remove -Wimplicit-fallthrough warning [\#2349](https://github.com/nlohmann/json/pull/2349) ([nlohmann](https://github.com/nlohmann))
- Fix code to work without exceptions [\#2347](https://github.com/nlohmann/json/pull/2347) ([nlohmann](https://github.com/nlohmann))
- fix cmake script overwriting compiler path [\#2344](https://github.com/nlohmann/json/pull/2344) ([ongjunjie](https://github.com/ongjunjie))
## [v3.9.1](https://github.com/nlohmann/json/releases/tag/v3.9.1) (2020-08-06)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.9.0...v3.9.1)
- Can't parse not formatted JSON. [\#2340](https://github.com/nlohmann/json/issues/2340)
- parse returns desired array contained in array when JSON text begins with square bracket on gcc 7.5.0 [\#2339](https://github.com/nlohmann/json/issues/2339)
- Unexpected deserialization difference between Mac and Linux [\#2338](https://github.com/nlohmann/json/issues/2338)
- Reading ordered\_json from file causes compile error [\#2331](https://github.com/nlohmann/json/issues/2331)
- ignore\_comment=true fails on multiple consecutive lines starting with comments [\#2330](https://github.com/nlohmann/json/issues/2330)
- Update documentation about Homebrew installation and CMake integration - Homebrew [\#2326](https://github.com/nlohmann/json/issues/2326)
- Chinese character initialize error [\#2325](https://github.com/nlohmann/json/issues/2325)
- json.update and vector\<pair\>does not work with ordered\_json [\#2315](https://github.com/nlohmann/json/issues/2315)
- Ambiguous call to overloaded function [\#2210](https://github.com/nlohmann/json/issues/2210)
- Fix fallthrough warning [\#2333](https://github.com/nlohmann/json/pull/2333) ([nlohmann](https://github.com/nlohmann))
- Fix lexer to properly cope with repeated comments [\#2332](https://github.com/nlohmann/json/pull/2332) ([nlohmann](https://github.com/nlohmann))
- Fix name of Homebrew formula in documentation [\#2327](https://github.com/nlohmann/json/pull/2327) ([nlohmann](https://github.com/nlohmann))
- fix typo [\#2320](https://github.com/nlohmann/json/pull/2320) ([wx257osn2](https://github.com/wx257osn2))
- Fix a bug due to missing overloads in ordered\_map container [\#2319](https://github.com/nlohmann/json/pull/2319) ([nlohmann](https://github.com/nlohmann))
- cmake: install pkg-config file relative to current\_binary\_dir [\#2318](https://github.com/nlohmann/json/pull/2318) ([eli-schwartz](https://github.com/eli-schwartz))
- Fixed installation of pkg-config file on other than Ubuntu [\#2314](https://github.com/nlohmann/json/pull/2314) ([xvitaly](https://github.com/xvitaly))
## [v3.9.0](https://github.com/nlohmann/json/releases/tag/v3.9.0) (2020-07-27)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.8.0...v3.9.0)
- Unknown Type Name clang error when using NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE [\#2313](https://github.com/nlohmann/json/issues/2313)
- Clang 10.0 / GCC 10.1 warnings on disabled exceptions [\#2304](https://github.com/nlohmann/json/issues/2304)
- Application stalls indefinitely with message byte size 10 [\#2293](https://github.com/nlohmann/json/issues/2293)
- linker error [\#2292](https://github.com/nlohmann/json/issues/2292)
- Add support for high-precision numbers in UBJSON encoding [\#2286](https://github.com/nlohmann/json/issues/2286)
- NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE fails if the length of the argument is 10 [\#2280](https://github.com/nlohmann/json/issues/2280)
- Custom types : MACRO expansion bug [\#2267](https://github.com/nlohmann/json/issues/2267)
- to/from\_json Failing To Convert String [\#2238](https://github.com/nlohmann/json/issues/2238)
- clang 9.0 report warning: unused type alias 'size\_type' \[-Wunused-local-typedef\] [\#2221](https://github.com/nlohmann/json/issues/2221)
- Enormous array created when working with map\<int,T\> [\#2220](https://github.com/nlohmann/json/issues/2220)
- Can I disable sorting of json values [\#2219](https://github.com/nlohmann/json/issues/2219)
- Getting Qt types to work [\#2217](https://github.com/nlohmann/json/issues/2217)
- Convert to Qt QVariant [\#2216](https://github.com/nlohmann/json/issues/2216)
- How to custom serialize same data type of vector? [\#2215](https://github.com/nlohmann/json/issues/2215)
- json constructor does not support std::optional [\#2214](https://github.com/nlohmann/json/issues/2214)
- Failing to Parse Valid JSON [\#2209](https://github.com/nlohmann/json/issues/2209)
- \(De-\)Serialization of std::variant with namespaces [\#2208](https://github.com/nlohmann/json/issues/2208)
- Addint support for complex type [\#2207](https://github.com/nlohmann/json/issues/2207)
- array\_index possible out of range [\#2205](https://github.com/nlohmann/json/issues/2205)
- Object deserialized as array [\#2204](https://github.com/nlohmann/json/issues/2204)
- Sending to a function a reference to a sub-branch [\#2200](https://github.com/nlohmann/json/issues/2200)
- How to Serialize derived class to JSON object? [\#2199](https://github.com/nlohmann/json/issues/2199)
- JSON incorrectly serialized [\#2198](https://github.com/nlohmann/json/issues/2198)
- Exception Unhandled out\_of\_range error [\#2197](https://github.com/nlohmann/json/issues/2197)
- msgpack serialisation : float is treated as 64bit float, not 32bit float. [\#2196](https://github.com/nlohmann/json/issues/2196)
- Is it possible to use compile-time type guarantees for JSON structures? [\#2195](https://github.com/nlohmann/json/issues/2195)
- Question : performance against python dict [\#2194](https://github.com/nlohmann/json/issues/2194)
- vs2017 compile error [\#2192](https://github.com/nlohmann/json/issues/2192)
- Check if a key exists [\#2191](https://github.com/nlohmann/json/issues/2191)
- Failed to run tests due to missing test data on builders without Internet access [\#2190](https://github.com/nlohmann/json/issues/2190)
- 3.8.0: unit-cbor.cpp test failures [\#2189](https://github.com/nlohmann/json/issues/2189)
- 'nlohmann/json.hpp' file not found [\#2188](https://github.com/nlohmann/json/issues/2188)
- How to send json data over the wire? [\#2185](https://github.com/nlohmann/json/issues/2185)
- Ubuntu 16 not supporting nlohmann/json? [\#2184](https://github.com/nlohmann/json/issues/2184)
- .get\<std::string\> causing emdash errors [\#2180](https://github.com/nlohmann/json/issues/2180)
- Object properties should not be re-sorted alphabetically [\#2179](https://github.com/nlohmann/json/issues/2179)
- Custom type registration : instrusive API [\#2175](https://github.com/nlohmann/json/issues/2175)
- Many version of the function "void to\_json\(json& j, const MyStruct& struct\)" [\#2171](https://github.com/nlohmann/json/issues/2171)
- How should strings be escaped? [\#2155](https://github.com/nlohmann/json/issues/2155)
- Adding a value to an existing json puts it at the beginning instead of the end [\#2149](https://github.com/nlohmann/json/issues/2149)
- The header file is big, can we use what we need. [\#2134](https://github.com/nlohmann/json/issues/2134)
- Changing the default format for unordered\_map \(or other set\) [\#2132](https://github.com/nlohmann/json/issues/2132)
- Getting size of deserialized bson document [\#2131](https://github.com/nlohmann/json/issues/2131)
- implicit conversion failure [\#2128](https://github.com/nlohmann/json/issues/2128)
- Error thrown when parsing in a subclass [\#2124](https://github.com/nlohmann/json/issues/2124)
- explicit conversion to string not considered for std::map keys in GCC8 [\#2096](https://github.com/nlohmann/json/issues/2096)
- Add support for JSONC [\#2061](https://github.com/nlohmann/json/issues/2061)
- Library provides template arg for string\_type but assumes std::string in some places [\#2059](https://github.com/nlohmann/json/issues/2059)
- incremental parsing with sax\_parser [\#2030](https://github.com/nlohmann/json/issues/2030)
- Question about flatten and unflatten [\#1989](https://github.com/nlohmann/json/issues/1989)
- CBOR parser doesn't skip tags [\#1968](https://github.com/nlohmann/json/issues/1968)
- Compilation failure using Clang on Windows [\#1898](https://github.com/nlohmann/json/issues/1898)
- Fail to build when including json.hpp as a system include [\#1818](https://github.com/nlohmann/json/issues/1818)
- Parsing string into json doesn't preserve the order correctly. [\#1817](https://github.com/nlohmann/json/issues/1817)
- \[C++17\] Allow std::optional to convert to nlohmann::json [\#1749](https://github.com/nlohmann/json/issues/1749)
- How can I save json object in file in order? [\#1717](https://github.com/nlohmann/json/issues/1717)
- Support for Comments [\#1513](https://github.com/nlohmann/json/issues/1513)
- clang compiler: error : unknown type name 'not' [\#1119](https://github.com/nlohmann/json/issues/1119)
- dump\(\) without alphabetical order [\#1106](https://github.com/nlohmann/json/issues/1106)
- operator T\(\) considered harmful [\#958](https://github.com/nlohmann/json/issues/958)
- Order of the elements in JSON object [\#952](https://github.com/nlohmann/json/issues/952)
- How to prevent alphabetical sorting of data? [\#727](https://github.com/nlohmann/json/issues/727)
- Why is an object ordering values by Alphabetical Order? [\#660](https://github.com/nlohmann/json/issues/660)
- Feature request: Comments [\#597](https://github.com/nlohmann/json/issues/597)
- Head Elements Sorting [\#543](https://github.com/nlohmann/json/issues/543)
- Automatic ordered JSON [\#424](https://github.com/nlohmann/json/issues/424)
- Support for comments. [\#376](https://github.com/nlohmann/json/issues/376)
- Optional comment support. [\#363](https://github.com/nlohmann/json/issues/363)
- Strip comments / Minify [\#294](https://github.com/nlohmann/json/issues/294)
- maintaining order of keys during iteration [\#106](https://github.com/nlohmann/json/issues/106)
- Update documentation [\#2312](https://github.com/nlohmann/json/pull/2312) ([nlohmann](https://github.com/nlohmann))
- Fix bug in CBOR tag handling [\#2308](https://github.com/nlohmann/json/pull/2308) ([nlohmann](https://github.com/nlohmann))
- added inline to NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE macro [\#2306](https://github.com/nlohmann/json/pull/2306) ([jwittbrodt](https://github.com/jwittbrodt))
- fixes unused variable 'ex' for \#2304 [\#2305](https://github.com/nlohmann/json/pull/2305) ([AODQ](https://github.com/AODQ))
- Cleanup [\#2303](https://github.com/nlohmann/json/pull/2303) ([nlohmann](https://github.com/nlohmann))
- Add test with multiple translation units [\#2301](https://github.com/nlohmann/json/pull/2301) ([nlohmann](https://github.com/nlohmann))
- Merge GitHub actions [\#2300](https://github.com/nlohmann/json/pull/2300) ([nlohmann](https://github.com/nlohmann))
- Fix unused parameter [\#2299](https://github.com/nlohmann/json/pull/2299) ([nlohmann](https://github.com/nlohmann))
- Add support for high-precision numbers in UBJSON encoding [\#2297](https://github.com/nlohmann/json/pull/2297) ([nlohmann](https://github.com/nlohmann))
- fix eof for get\_binary and get\_string [\#2294](https://github.com/nlohmann/json/pull/2294) ([jprochazk](https://github.com/jprochazk))
- Serialisation macros: increase upper bound on number of member variables [\#2287](https://github.com/nlohmann/json/pull/2287) ([pfeatherstone](https://github.com/pfeatherstone))
- add inline specifier for detail::combine [\#2285](https://github.com/nlohmann/json/pull/2285) ([T0b1-iOS](https://github.com/T0b1-iOS))
- Add static assertion for missing binary function in SAX interface [\#2282](https://github.com/nlohmann/json/pull/2282) ([nlohmann](https://github.com/nlohmann))
- Add test for target\_include\_directories [\#2279](https://github.com/nlohmann/json/pull/2279) ([nlohmann](https://github.com/nlohmann))
- Clean up maintainer Makefiles and fix some linter warnings [\#2274](https://github.com/nlohmann/json/pull/2274) ([nlohmann](https://github.com/nlohmann))
- Add option to ignore CBOR tags [\#2273](https://github.com/nlohmann/json/pull/2273) ([nlohmann](https://github.com/nlohmann))
- Hash function without allocation [\#2269](https://github.com/nlohmann/json/pull/2269) ([nlohmann](https://github.com/nlohmann))
- Add ClangCL for MSVC [\#2268](https://github.com/nlohmann/json/pull/2268) ([t-b](https://github.com/t-b))
- Makefile: Always use SED variable [\#2264](https://github.com/nlohmann/json/pull/2264) ([t-b](https://github.com/t-b))
- Add Xcode 12 CI [\#2262](https://github.com/nlohmann/json/pull/2262) ([nlohmann](https://github.com/nlohmann))
- Make library work with Clang on Windows [\#2259](https://github.com/nlohmann/json/pull/2259) ([nlohmann](https://github.com/nlohmann))
- Add ordered\_json specialization with ordered object keys [\#2258](https://github.com/nlohmann/json/pull/2258) ([nlohmann](https://github.com/nlohmann))
- Add pkg-config file [\#2253](https://github.com/nlohmann/json/pull/2253) ([ericonr](https://github.com/ericonr))
- Fix regression from \#2181 [\#2251](https://github.com/nlohmann/json/pull/2251) ([nlohmann](https://github.com/nlohmann))
- Tag binary values in cbor if set [\#2244](https://github.com/nlohmann/json/pull/2244) ([matthewbauer](https://github.com/matthewbauer))
- Make assert configurable via JSON\_ASSERT [\#2242](https://github.com/nlohmann/json/pull/2242) ([nlohmann](https://github.com/nlohmann))
- Add specialization of get\_to [\#2233](https://github.com/nlohmann/json/pull/2233) ([nlohmann](https://github.com/nlohmann))
- Refine documentation of error\_handler parameter [\#2232](https://github.com/nlohmann/json/pull/2232) ([nlohmann](https://github.com/nlohmann))
- Simplify conversion from/to custom types [\#2225](https://github.com/nlohmann/json/pull/2225) ([nlohmann](https://github.com/nlohmann))
- Remove unused typedefs [\#2224](https://github.com/nlohmann/json/pull/2224) ([nlohmann](https://github.com/nlohmann))
- Enable CMake policy CMP0077 [\#2222](https://github.com/nlohmann/json/pull/2222) ([alexreinking](https://github.com/alexreinking))
- Add option to ignore comments in parse/accept functions [\#2212](https://github.com/nlohmann/json/pull/2212) ([nlohmann](https://github.com/nlohmann))
- Fix Clang-Tidy warnings [\#2211](https://github.com/nlohmann/json/pull/2211) ([nlohmann](https://github.com/nlohmann))
- Simple ordered\_json that works on all supported compilers [\#2206](https://github.com/nlohmann/json/pull/2206) ([gatopeich](https://github.com/gatopeich))
- Use unsigned indizies for array index in json pointer [\#2203](https://github.com/nlohmann/json/pull/2203) ([t-b](https://github.com/t-b))
- Add option to not rely on Internet connectivity during test stage [\#2202](https://github.com/nlohmann/json/pull/2202) ([nlohmann](https://github.com/nlohmann))
- Serialize floating-point numbers with 32 bit when possible \(MessagePack\) [\#2201](https://github.com/nlohmann/json/pull/2201) ([nlohmann](https://github.com/nlohmann))
- Fix consistency in function `int_to_string()` [\#2193](https://github.com/nlohmann/json/pull/2193) ([dota17](https://github.com/dota17))
- Fix issue\#1275 [\#2181](https://github.com/nlohmann/json/pull/2181) ([dota17](https://github.com/dota17))
- C++20 support by removing swap specialization [\#2176](https://github.com/nlohmann/json/pull/2176) ([gracicot](https://github.com/gracicot))
- Feat/explicit conversion operator [\#1559](https://github.com/nlohmann/json/pull/1559) ([theodelrieu](https://github.com/theodelrieu))
## [v3.8.0](https://github.com/nlohmann/json/releases/tag/v3.8.0) (2020-06-14)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.7.3...v3.8.0)
- sorry delete this issue, i'm stupid [\#2187](https://github.com/nlohmann/json/issues/2187)
- Append to a std::nlohmann::json type [\#2186](https://github.com/nlohmann/json/issues/2186)
- Some troubles to compile the last revision [\#2177](https://github.com/nlohmann/json/issues/2177)
- \# Top level CMakeLists.txt
project\(FOO\)
...
option\(FOO\_USE\_EXTERNAL\_JSON "Use an external JSON library" OFF\)
...
add\_subdirectory\(thirdparty\)
...
add\_library\(foo ...\)
...
\# Note that the namespaced target will always be available regardless of the
\# import method
target\_link\_libraries\(foo PRIVATE nlohmann\_json::nlohmann\_json\) [\#2170](https://github.com/nlohmann/json/issues/2170)
- https://www.github.com/nlohmann/json/tree/develop/include%2Fnlohmann%2Fjson\_fwd.hpp [\#2169](https://github.com/nlohmann/json/issues/2169)
- templated from\_json of non primitive types causes gcc error [\#2168](https://github.com/nlohmann/json/issues/2168)
- few warnings/errors in copy assignment [\#2167](https://github.com/nlohmann/json/issues/2167)
- Different output when upgrading from clang 9 to clang 10 [\#2166](https://github.com/nlohmann/json/issues/2166)
- Cannot build with VS 2019 / C++17 [\#2163](https://github.com/nlohmann/json/issues/2163)
- Q: When I received an illegal string,How the program knows? [\#2162](https://github.com/nlohmann/json/issues/2162)
- Problem while reading a json file [\#2161](https://github.com/nlohmann/json/issues/2161)
- converting std::chrono::system\_clock::time\_point to json. [\#2159](https://github.com/nlohmann/json/issues/2159)
- how to parse vector\<struct\> format [\#2157](https://github.com/nlohmann/json/issues/2157)
- nlohmann::json and =nullptr [\#2156](https://github.com/nlohmann/json/issues/2156)
- test-cbor fails [\#2154](https://github.com/nlohmann/json/issues/2154)
- Accessing array inside array syntax? [\#2151](https://github.com/nlohmann/json/issues/2151)
- Best way to catch errors when querying json [\#2150](https://github.com/nlohmann/json/issues/2150)
- JSON Data Mapping Key-Value from other Key-Value [\#2148](https://github.com/nlohmann/json/issues/2148)
- Conflicts with std \<any\> compiling with GCC 10 [\#2146](https://github.com/nlohmann/json/issues/2146)
- Incorrect CMake FetchContent example [\#2142](https://github.com/nlohmann/json/issues/2142)
- Help for a Beginner? [\#2141](https://github.com/nlohmann/json/issues/2141)
- Read Json from File [\#2139](https://github.com/nlohmann/json/issues/2139)
- How to feed a predefined integer value into json string [\#2138](https://github.com/nlohmann/json/issues/2138)
- getting json array inside json object [\#2135](https://github.com/nlohmann/json/issues/2135)
- Add .contains example to doc [\#2133](https://github.com/nlohmann/json/issues/2133)
- Is it safe to return string.c\_str\(\) received from get\(\)? [\#2130](https://github.com/nlohmann/json/issues/2130)
- GCC 10: Compilation error when including any before including json header in C++17 mode [\#2129](https://github.com/nlohmann/json/issues/2129)
- Intersection of two json files [\#2127](https://github.com/nlohmann/json/issues/2127)
- App crashes when dump method called for non ascii chars. [\#2126](https://github.com/nlohmann/json/issues/2126)
- iterator based erase method [\#2122](https://github.com/nlohmann/json/issues/2122)
- quick and convenient api to get/set nested json values [\#2120](https://github.com/nlohmann/json/issues/2120)
- assigning nullptr to std::string [\#2118](https://github.com/nlohmann/json/issues/2118)
- usless\_cast warnings with gcc 9.3 and 10.1 \(C++17\) [\#2114](https://github.com/nlohmann/json/issues/2114)
- clang 10 warning [\#2113](https://github.com/nlohmann/json/issues/2113)
- Possible incorrect \_MSC\_VER reference [\#2112](https://github.com/nlohmann/json/issues/2112)
- warning under gcc 10.1 [\#2110](https://github.com/nlohmann/json/issues/2110)
- Wdeprecated-declarations from GCC v10.1.0 [\#2109](https://github.com/nlohmann/json/issues/2109)
- Global std::vector from json [\#2108](https://github.com/nlohmann/json/issues/2108)
- heap-buffer-overflow when using nlohmann/json, ASAN, and gtest [\#2107](https://github.com/nlohmann/json/issues/2107)
- exception 0x770DC5AF when i read an special char in json file [\#2106](https://github.com/nlohmann/json/issues/2106)
- json::parse\(\) fails to parse a dump\(2,' '\) output, yet does successfully parse dump\(\) [\#2105](https://github.com/nlohmann/json/issues/2105)
- run test-udt error in MSVC 19.16.27034.0 [\#2103](https://github.com/nlohmann/json/issues/2103)
- Unable to dump to stringstream [\#2102](https://github.com/nlohmann/json/issues/2102)
- Can't ad an object in another objet [\#2101](https://github.com/nlohmann/json/issues/2101)
- Implicit conversion causes "cannot use operator\[\] with a string argument with string" [\#2098](https://github.com/nlohmann/json/issues/2098)
- C++20: char8\_t [\#2097](https://github.com/nlohmann/json/issues/2097)
- Compilation issues when included in project [\#2094](https://github.com/nlohmann/json/issues/2094)
- string value with null character causes infinite loop [\#2093](https://github.com/nlohmann/json/issues/2093)
- corrupted size vs. prev\_size \(aborted\) [\#2092](https://github.com/nlohmann/json/issues/2092)
- Get string field content without return std::string copy [\#2091](https://github.com/nlohmann/json/issues/2091)
- JSON Comments \(JSON 5\) [\#2090](https://github.com/nlohmann/json/issues/2090)
- Remove \#include \<ciso646\> [\#2089](https://github.com/nlohmann/json/issues/2089)
- JSON library as a git submodule [\#2088](https://github.com/nlohmann/json/issues/2088)
- Apple Clang 11.0.3 on MacOS Catalina 10.15.4 not compiling [\#2087](https://github.com/nlohmann/json/issues/2087)
- Value function return empty object even if it exist [\#2086](https://github.com/nlohmann/json/issues/2086)
- Cannot debug but Run works [\#2085](https://github.com/nlohmann/json/issues/2085)
- Question about serialization. [\#2084](https://github.com/nlohmann/json/issues/2084)
- How to include in an external project [\#2083](https://github.com/nlohmann/json/issues/2083)
- Missing tests for binary values [\#2082](https://github.com/nlohmann/json/issues/2082)
- How to override default string serialization? [\#2079](https://github.com/nlohmann/json/issues/2079)
- Can't have a json type as a property in an arbitrary type [\#2078](https://github.com/nlohmann/json/issues/2078)
- New release? [\#2075](https://github.com/nlohmann/json/issues/2075)
- CMake FetchContent \> Updating the documentation? [\#2073](https://github.com/nlohmann/json/issues/2073)
- How to convert STL Vector \(of user defined type\) to Json [\#2072](https://github.com/nlohmann/json/issues/2072)
- how to make an array of objects [\#2070](https://github.com/nlohmann/json/issues/2070)
- ‘\_\_int64’ was not declared [\#2068](https://github.com/nlohmann/json/issues/2068)
- \[json.exception.type\_error.317\] cannot serialize binary data to text JSON [\#2067](https://github.com/nlohmann/json/issues/2067)
- Unexpected end of input; expected '\[', '{', or a literal [\#2066](https://github.com/nlohmann/json/issues/2066)
- Json structure can be nested? [\#2065](https://github.com/nlohmann/json/issues/2065)
- Bug: returning reference to local temporary object [\#2064](https://github.com/nlohmann/json/issues/2064)
- Allow to use non strict parsing [\#2063](https://github.com/nlohmann/json/issues/2063)
- Crashing on json::at [\#2062](https://github.com/nlohmann/json/issues/2062)
- How to convert a const std::vector\<char8\_t\> message to a json, to be able to parse it and extract information from it? Can you point to any examples? [\#2058](https://github.com/nlohmann/json/issues/2058)
- Nice library [\#2057](https://github.com/nlohmann/json/issues/2057)
- json.hpp:15372:22: error: expected unqualified-id if \(not std::isfinite\(x\)\): Started getting this bug after updating my XCode [\#2056](https://github.com/nlohmann/json/issues/2056)
- Confused as how I can extract the values from the JSON object. [\#2055](https://github.com/nlohmann/json/issues/2055)
- Warnings with GCC 10 [\#2052](https://github.com/nlohmann/json/issues/2052)
- Warnings with Clang 10 [\#2049](https://github.com/nlohmann/json/issues/2049)
- Update doctest [\#2048](https://github.com/nlohmann/json/issues/2048)
- Unclear error message: "cannot use operator\[\] with a string argument with array" [\#2047](https://github.com/nlohmann/json/issues/2047)
- Serializing std::variant\<T, std::vector\<T\>\> [\#2045](https://github.com/nlohmann/json/issues/2045)
- Crash when parse big jsonfile [\#2042](https://github.com/nlohmann/json/issues/2042)
- How to check if a key exists without silently generating null objects on the path [\#2041](https://github.com/nlohmann/json/issues/2041)
- Crash when traversing over items\(\) of temporary json objects [\#2040](https://github.com/nlohmann/json/issues/2040)
- How to parse multiple line value ? [\#2039](https://github.com/nlohmann/json/issues/2039)
- SAX API uses unsigned std::size\_t but -1 if element size is not known; [\#2037](https://github.com/nlohmann/json/issues/2037)
- How to parse big decimal data [\#2036](https://github.com/nlohmann/json/issues/2036)
- how use template \<typename T\> struct adl\_serializer [\#2035](https://github.com/nlohmann/json/issues/2035)
- auto iterator returned by find to handle value depending if is string or numeric. [\#2032](https://github.com/nlohmann/json/issues/2032)
- pass find returned iterator to numeric variable. [\#2031](https://github.com/nlohmann/json/issues/2031)
- Parse error on valid json file [\#2029](https://github.com/nlohmann/json/issues/2029)
- Is here any elegant way to combine serialization and deserialization code? [\#2028](https://github.com/nlohmann/json/issues/2028)
- Notes about dump function [\#2027](https://github.com/nlohmann/json/issues/2027)
- Different JSON printouts for empty dictionary on Linux and Mac. [\#2026](https://github.com/nlohmann/json/issues/2026)
- easier way to get exception reason out of json\_sax\_dom\_callback\_parser without exceptions [\#2024](https://github.com/nlohmann/json/issues/2024)
- Using fifo\_map with base class and derived class [\#2023](https://github.com/nlohmann/json/issues/2023)
- Error reading JSON File [\#2022](https://github.com/nlohmann/json/issues/2022)
- Parse causing crash on android. Cannot catch. [\#2021](https://github.com/nlohmann/json/issues/2021)
- Extra backslashes in nested json [\#2020](https://github.com/nlohmann/json/issues/2020)
- How to create patch for merge\_patch input ? [\#2018](https://github.com/nlohmann/json/issues/2018)
- CppUTest/include/CppUTestExt/MockSupport.h:40: error: default argument for ‘MockFailureReporter\* failureReporterForThisCall’ has type ‘void\*’ [\#2017](https://github.com/nlohmann/json/issues/2017)
- including another file [\#2016](https://github.com/nlohmann/json/issues/2016)
- GNU PREREQ Error with gcc 9.3.0 [\#2015](https://github.com/nlohmann/json/issues/2015)
- Parse error: json.exception.parse\_error.101 - invalid string: ill-formed UTF-8 byte [\#2014](https://github.com/nlohmann/json/issues/2014)
- Add more flexibility to basic\_json's ObjectType \(and ArrayType\) [\#2013](https://github.com/nlohmann/json/issues/2013)
- afl persistent mode [\#2012](https://github.com/nlohmann/json/issues/2012)
- Compiler Errors under VS2019 in Appveyor CI [\#2009](https://github.com/nlohmann/json/issues/2009)
- Another compilation failure with Visual Studio [\#2007](https://github.com/nlohmann/json/issues/2007)
- Implicit cast to std::string broken again with VS2019 16.5.0 [\#2006](https://github.com/nlohmann/json/issues/2006)
- error: no matching member function for call to 'AddRaw' [\#2005](https://github.com/nlohmann/json/issues/2005)
- When I re-create an object again after the network request, an error is reported [\#2003](https://github.com/nlohmann/json/issues/2003)
- How to merge \(and not replace\) different Json::Value objects in jsoncpp [\#2001](https://github.com/nlohmann/json/issues/2001)
- scalar transforms to list [\#2000](https://github.com/nlohmann/json/issues/2000)
- Dump JSON containing multibyte characters [\#1999](https://github.com/nlohmann/json/issues/1999)
- Build error when modify value [\#1998](https://github.com/nlohmann/json/issues/1998)
- How do i include a vector of pointers in my json? [\#1997](https://github.com/nlohmann/json/issues/1997)
- Compiler error wrt incomplete types changed in gcc8.3.0-26 [\#1996](https://github.com/nlohmann/json/issues/1996)
- NaN-like comparison behavior of discarded is inconvenient [\#1988](https://github.com/nlohmann/json/issues/1988)
- Maintaining JSON package in my CMake [\#1987](https://github.com/nlohmann/json/issues/1987)
- reading int number and string number [\#1986](https://github.com/nlohmann/json/issues/1986)
- Build error: keyword is hidden by macro definition! [\#1985](https://github.com/nlohmann/json/issues/1985)
- JSON patch diff for op=add formation is not as per standard \(RFC 6902\) [\#1983](https://github.com/nlohmann/json/issues/1983)
- json\_pointer.contains\(\) exception is incorrectly raised [\#1982](https://github.com/nlohmann/json/issues/1982)
- Error with non existing key [\#1981](https://github.com/nlohmann/json/issues/1981)
- Closed [\#1978](https://github.com/nlohmann/json/issues/1978)
- Where is the library built and what is the name? [\#1977](https://github.com/nlohmann/json/issues/1977)
- The cmake\_import example does not build [\#1976](https://github.com/nlohmann/json/issues/1976)
- Dumping core when reading invalid file [\#1975](https://github.com/nlohmann/json/issues/1975)
- Abort in dump\(\) method [\#1973](https://github.com/nlohmann/json/issues/1973)
- Unclear docs regarding parser\_callback\_t callbacks [\#1972](https://github.com/nlohmann/json/issues/1972)
- Possible memory leak on push\_back [\#1971](https://github.com/nlohmann/json/issues/1971)
- Is it possible to get a safe mutable reference/pointer to internal variant used in nlohmann json? [\#1970](https://github.com/nlohmann/json/issues/1970)
- Getting a flatten json to map\<string, string\> [\#1957](https://github.com/nlohmann/json/issues/1957)
- forced type conversion or lexical cast without exception. [\#1955](https://github.com/nlohmann/json/issues/1955)
- Add json\_view type support to avoid excessive copying [\#1954](https://github.com/nlohmann/json/issues/1954)
- Adding "examples" section for real-life usages [\#1953](https://github.com/nlohmann/json/issues/1953)
- Add nlohmann::json::key\_type [\#1951](https://github.com/nlohmann/json/issues/1951)
- cannot use operator\[\] with a string argument with string [\#1949](https://github.com/nlohmann/json/issues/1949)
- std::ifstream \>\> json error [\#1948](https://github.com/nlohmann/json/issues/1948)
- Cannot update json data in an iterator? [\#1947](https://github.com/nlohmann/json/issues/1947)
- How can i build this library in VS 2017? [\#1943](https://github.com/nlohmann/json/issues/1943)
- json\_pointer.contains\(\) exceptions when path not found [\#1942](https://github.com/nlohmann/json/issues/1942)
- Nested objects serialize/deserialize [\#1941](https://github.com/nlohmann/json/issues/1941)
- Compile warning on architectures that are not x86 [\#1939](https://github.com/nlohmann/json/issues/1939)
- Version of nlohmann-json-dev in debian packages [\#1938](https://github.com/nlohmann/json/issues/1938)
- Create a json object for every cycle [\#1937](https://github.com/nlohmann/json/issues/1937)
- How to get the object name? [\#1936](https://github.com/nlohmann/json/issues/1936)
- Reserve and resize function for basic json [\#1935](https://github.com/nlohmann/json/issues/1935)
- How to use json parse in tsl::ordread\_map? [\#1934](https://github.com/nlohmann/json/issues/1934)
- C++14 support is not enabled with msvc2015 [\#1932](https://github.com/nlohmann/json/issues/1932)
- Need help with to\_json for derived class, keep getting "cannot use operator" [\#1931](https://github.com/nlohmann/json/issues/1931)
- How to handle std::vector\<std::uint8\_t\> [\#1930](https://github.com/nlohmann/json/issues/1930)
- Heap corruption issue [\#1929](https://github.com/nlohmann/json/issues/1929)
- Add `std::wistream` support. [\#1928](https://github.com/nlohmann/json/issues/1928)
- This i can write and read any file thanks [\#1927](https://github.com/nlohmann/json/issues/1927)
- How can I get this simple example working? [\#1926](https://github.com/nlohmann/json/issues/1926)
- emplace\_back does not seems to work with the int 0 [\#1925](https://github.com/nlohmann/json/issues/1925)
- Why nlohmann does not release memory [\#1924](https://github.com/nlohmann/json/issues/1924)
- Is it possible to have template `json::parse` with `noexcept` specifier? [\#1922](https://github.com/nlohmann/json/issues/1922)
- JSON to wstring? [\#1921](https://github.com/nlohmann/json/issues/1921)
- GCC 10 tests build failure [\#1920](https://github.com/nlohmann/json/issues/1920)
- Size of binary json representations [\#1919](https://github.com/nlohmann/json/issues/1919)
- Accessing strings \(for example in keys or values\) without having the lib create a copy of it. [\#1916](https://github.com/nlohmann/json/issues/1916)
- operator== documentation should show how to apply custom comparison function [\#1915](https://github.com/nlohmann/json/issues/1915)
- char8\_t and std::u8string support [\#1914](https://github.com/nlohmann/json/issues/1914)
- std::is\_pod is deprecated in C++20 [\#1913](https://github.com/nlohmann/json/issues/1913)
- Incomplete types reported by \(experimental\) GCC10 [\#1912](https://github.com/nlohmann/json/issues/1912)
- Compile warnings on MSVC 14.2 [\#1911](https://github.com/nlohmann/json/issues/1911)
- How to parse json file with type composition of std::optional and std::variant [\#1910](https://github.com/nlohmann/json/issues/1910)
- why root\_schema be implemented as unique\_ptr in json-validator.cpp，could I use it as shared\_ptr? [\#1908](https://github.com/nlohmann/json/issues/1908)
- compile error in gcc-6.3.0 [\#1906](https://github.com/nlohmann/json/issues/1906)
- Scalar constexpr is odr-used when used as json initializer [\#1905](https://github.com/nlohmann/json/issues/1905)
- install Slack app [\#1904](https://github.com/nlohmann/json/issues/1904)
- typo in a comment [\#1903](https://github.com/nlohmann/json/issues/1903)
- Watch JSON variables in Debug [\#1902](https://github.com/nlohmann/json/issues/1902)
- does Json sdk cares about dfc dfd utf8 issue? [\#1901](https://github.com/nlohmann/json/issues/1901)
- Allow multiple line string value in JSON [\#1897](https://github.com/nlohmann/json/issues/1897)
- Writing map to json file [\#1896](https://github.com/nlohmann/json/issues/1896)
- Small documentation mistake [\#1895](https://github.com/nlohmann/json/issues/1895)
- why static function `parse` cann't find in visual studio 2019 [\#1894](https://github.com/nlohmann/json/issues/1894)
- Best way to handle json files with missing key value pairs. [\#1893](https://github.com/nlohmann/json/issues/1893)
- accessing json object as multimap [\#1892](https://github.com/nlohmann/json/issues/1892)
- What is the best way to parse vec3s into glm::vec3 [\#1891](https://github.com/nlohmann/json/issues/1891)
- Get array of items without using vector [\#1890](https://github.com/nlohmann/json/issues/1890)
- Build errors \(clang 11.0.0\) on macOS 10.15.2 [\#1889](https://github.com/nlohmann/json/issues/1889)
- Multiple arrays to vectors help [\#1888](https://github.com/nlohmann/json/issues/1888)
- json::parse\(begin, end\) parse error on first character using uchar\* [\#1887](https://github.com/nlohmann/json/issues/1887)
- issue in free\(\) [\#1886](https://github.com/nlohmann/json/issues/1886)
- is\_number\_unsigned\(\) returns false for positive integers \(int or 0 or 1 literals\) [\#1885](https://github.com/nlohmann/json/issues/1885)
- MSVC build failure with /Zc:\_\_cplusplus and C++17 [\#1883](https://github.com/nlohmann/json/issues/1883)
- RFC 6901 op:replace & arrays [\#1882](https://github.com/nlohmann/json/issues/1882)
- Problem with serialization of my custom template doubly-linked list [\#1881](https://github.com/nlohmann/json/issues/1881)
- is\_array\(\) is True, but raise 'cannot use operator\[\] for object iterators' [\#1880](https://github.com/nlohmann/json/issues/1880)
- Serialize dynamic array [\#1879](https://github.com/nlohmann/json/issues/1879)
- Serialization of struct object. [\#1877](https://github.com/nlohmann/json/issues/1877)
- warning:c4503 [\#1875](https://github.com/nlohmann/json/issues/1875)
- Why are flattened empty objects/arrays not representable? [\#1874](https://github.com/nlohmann/json/issues/1874)
- Container Overflow \(ASAN\) when using operator \>\> on an ifs [\#1873](https://github.com/nlohmann/json/issues/1873)
- Sub-array to vector or map object? [\#1870](https://github.com/nlohmann/json/issues/1870)
- WIP: QT \(cute\) type supports [\#1869](https://github.com/nlohmann/json/issues/1869)
- Compiler flags to disable features and shrink code size [\#1868](https://github.com/nlohmann/json/issues/1868)
- null strings [\#1867](https://github.com/nlohmann/json/issues/1867)
- Struct with array of struct and \_\_attribute\_\_\(\(packed\)\) [\#1866](https://github.com/nlohmann/json/issues/1866)
- Best way to extract numbers in the string? [\#1865](https://github.com/nlohmann/json/issues/1865)
- Displaying \\?\Volume{guid} from string to json giving error [\#1864](https://github.com/nlohmann/json/issues/1864)
- not working when compiling as x86 [\#1863](https://github.com/nlohmann/json/issues/1863)
- Skipping evaluation of log line expressions with a macro, is it possible? [\#1862](https://github.com/nlohmann/json/issues/1862)
- Suppress warnings [\#1861](https://github.com/nlohmann/json/issues/1861)
- conflit with g++ compile option -mwindows [\#1860](https://github.com/nlohmann/json/issues/1860)
- How to serialize nested classes to semi-flat JSON object? [\#1859](https://github.com/nlohmann/json/issues/1859)
- Memory Requirement for large json file [\#1858](https://github.com/nlohmann/json/issues/1858)
- Query a binary format \(BSON, CBOR, MessagePack, UBJSON\) [\#1856](https://github.com/nlohmann/json/issues/1856)
- Documentation on operator\[\] behavior with missing keys [\#1855](https://github.com/nlohmann/json/issues/1855)
- Problem in converting string into JSON; Can't parse successfully. [\#1854](https://github.com/nlohmann/json/issues/1854)
- json.at\_or\_default\(key, defaultval\) [\#1852](https://github.com/nlohmann/json/issues/1852)
- please improve the enum conversion documentation \(my example gist provided\) [\#1851](https://github.com/nlohmann/json/issues/1851)
- Default value returned on ValueType nlohmann::basic\_json::value \(const typename object\_t::key\_type& key, const ValueType& default\_value\) [\#1850](https://github.com/nlohmann/json/issues/1850)
- Accounting for arbitrary precision numerical literals [\#1849](https://github.com/nlohmann/json/issues/1849)
- While trying to make a simple array, I get a nested array instead [\#1848](https://github.com/nlohmann/json/issues/1848)
- How to reuse the parser and serializer intermediate storage? [\#1847](https://github.com/nlohmann/json/issues/1847)
- Too much content in json.hpp leads to slow compilation [\#1845](https://github.com/nlohmann/json/issues/1845)
- Cannot read some data in json file [\#1843](https://github.com/nlohmann/json/issues/1843)
- Precompiled JSON library? [\#1842](https://github.com/nlohmann/json/issues/1842)
- Please change assert into throw\(maybe\) in line 17946 [\#1841](https://github.com/nlohmann/json/issues/1841)
- JSON for modern C++ ECCN information [\#1840](https://github.com/nlohmann/json/issues/1840)
- CI: reduce build time for Travis valgrind [\#1836](https://github.com/nlohmann/json/issues/1836)
- How do I traverse a json object and add new elements into the hierarchy [\#1834](https://github.com/nlohmann/json/issues/1834)
- Invalid UTF-8 byte at index 1: 0x65 [\#1831](https://github.com/nlohmann/json/issues/1831)
- Serialize big data in json [\#1828](https://github.com/nlohmann/json/issues/1828)
- Backslash '\' in value causes exception [\#1827](https://github.com/nlohmann/json/issues/1827)
- from\_json for non default constructible class with dependency injection [\#1819](https://github.com/nlohmann/json/issues/1819)
- Semi-frequent timeouts in `test-unicode_all` with 3.6.1 \(aarch64\) [\#1816](https://github.com/nlohmann/json/issues/1816)
- input\_adapter not user extensible [\#1813](https://github.com/nlohmann/json/issues/1813)
- crash at json::destroy on android [\#1812](https://github.com/nlohmann/json/issues/1812)
- Logs are repeating while cmake [\#1809](https://github.com/nlohmann/json/issues/1809)
- Add a the possibility to add dynamic json objects [\#1795](https://github.com/nlohmann/json/issues/1795)
- Unnecessary test data file in the release [\#1790](https://github.com/nlohmann/json/issues/1790)
- Add support for parse stack limiting [\#1788](https://github.com/nlohmann/json/issues/1788)
- GCC -Wuseless-cast warnings [\#1777](https://github.com/nlohmann/json/issues/1777)
- compilation issue with NVCC 9.0 [\#1773](https://github.com/nlohmann/json/issues/1773)
- Unexpected behavior with fifo\_map json when copy and append [\#1763](https://github.com/nlohmann/json/issues/1763)
- Parse error [\#1761](https://github.com/nlohmann/json/issues/1761)
- Assignment \(using value\(\)\) to nonexistent element behaves differently on Xcode 8 vs Xcode 10 [\#1758](https://github.com/nlohmann/json/issues/1758)
- Readme out of date [\#1756](https://github.com/nlohmann/json/issues/1756)
- cmake\_\* tests don't use the build system's compiler [\#1747](https://github.com/nlohmann/json/issues/1747)
- Static assertions for template type properties required [\#1729](https://github.com/nlohmann/json/issues/1729)
- Use float and possibly half in json::to\_cbor [\#1719](https://github.com/nlohmann/json/issues/1719)
- json::from\_cbor does not respect allow\_exceptions = false when input is string literal [\#1715](https://github.com/nlohmann/json/issues/1715)
- /Zc:\_\_cplusplus leads to C2416 [\#1695](https://github.com/nlohmann/json/issues/1695)
- `unflatten` vs objects with number-ish keys [\#1575](https://github.com/nlohmann/json/issues/1575)
- A "thinner" source code tar as part of release? [\#1572](https://github.com/nlohmann/json/issues/1572)
- Repository is almost 450MB [\#1497](https://github.com/nlohmann/json/issues/1497)