diff --git a/docs/changelog.rst b/docs/changelog.rst
index e10e3f2..3d76776 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -3,11 +3,15 @@ Changelog
 
 Unreleased
 
- - Configure linting with black, ruff and pre-commit (@zerolab)
+1.6 (2023-07-13)
+----------------
+
+ - Configure linting with black, ruff and pre-commit. Add coverage reports (@zerolab)
  - Switch to flit for packaging, and PyPI trusted publishing (@zerolab)
  - Drop support for Python 3.7
  - Add AVIF support (Aman Pandey)
- - Add support for image optimization libraries via :ref:`optmizer classes <concept-optimizers>` (@zerolab)
+ - Add support for image optimization libraries via :ref:`optimizer classes <concept-optimizers>` (@zerolab)
+ - Add check for CMYK when saving as PNG (Stan Mattingly, @zerolab)
 
 
 1.5.1 (2023-07-06)
@@ -16,7 +20,7 @@ Unreleased
  - Fix SVG cropping (Joshua Munn)
 
 
-1.5 (29/03/2023)
+1.5 (2023-03-29)
 ----------------
 
  - Drop support for Python versions below 3.7
@@ -26,37 +30,37 @@ Unreleased
  - Add HEIF support via the ``pillow-heif`` library (Alexander Piskun)
 
 
-1.4.1 (25/02/2022)
+1.4.1 (2022-02-25)
 ------------------
 
  - Drop support for Python 3.4
  - Imagemagick 7 compatibility fixes (Matt Westcott)
  - Fix: Implemented consistent behavior between Pillow and Wand for out-of-bounds crop rectangles (Matt Westcott)
 
-1.4 (26/05/2020)
+1.4 (2020-05-26)
 ----------------
 
  - Implemented save quality/lossless options for WebP (@mozgsml)
  - Added missing docs for WebP support (@mozgsml)
 
-1.3 (16/10/2019)
+1.3 (2019-10-16)
 ----------------
 
  - Added ``.get_frame_count()`` operation (@kaedroho)
 
-1.2 (11/10/2019)
+1.2 (2019-10-11)
 ----------------
 
  - Added WebP support (@frmdstryr)
  - Added ``.rotate()`` operation (@mrchrisadams & @simo97)
 
-1.1 (04/12/2017)
+1.1 (2017-12-04)
 ----------------
 
  - Added `set_background_color_rgb` operation
  - Update MANIFEST.in (Sanny Kumar)
 
-1.0 (04/08/2017)
+1.0 (2017-08-04)
 ----------------
 
  - OpenCV 3 support (Will Giddens)
@@ -65,20 +69,20 @@ Unreleased
  - Support for TIFF files (Maik Hoepfel)
  - Support for BMP files was made official (Maik Hoepfel)
 
-0.4 (05/10/2016)
+0.4 (2016-10-05)
 ----------------
 
  - Support for image optimization and saving progressive JPEG files
  - Added documentation
 
-0.3.1 (16/05/2016)
+0.3.1 (2016-05-16)
 ------------------
 
  - Fixed crash in the Pillow auto_orient operation when the image has an invalid Orientation EXIF Tag (Sigurdur J Eggertsson)
  - The ``auto_orient`` operation now catches all errors raised while reading EXIF data (Tomas Olander)
  - Palette formatted PNG and GIF files that have transparency no longer lose their transparency when resizing them
 
-0.3 (09/03/2016)
+0.3 (2016-03-09)
 ----------------
 
 A major internals refactor has taken place in this release, there are a number of breaking changes:
@@ -93,12 +97,12 @@ Other changes in this release:
 
 - Added auto_orient operation
 
-0.2.1 (27/05/2015)
+0.2.1 (2015-05-27)
 ------------------
 
 - JPEGs are now detected from first two bytes of their file. Allowing non JFIF/EXIF JPEG images to be loaded
 
-0.2 (01/04/2015)
+0.2 (2015-04-01)
 ----------------
 
 - Added loader for BMP files
@@ -112,7 +116,7 @@ Other changes in this release:
 - Fix: Images now saved in the same format they were loaded
 - Fix: 1 and P formatted images now converted to RGB when saving to JPEG
 
-0.1 (22/02/2015)
+0.1 (2015-02-22)
 ----------------
 
 Initial release
diff --git a/willow/__init__.py b/willow/__init__.py
index 8a13119..76beb2c 100644
--- a/willow/__init__.py
+++ b/willow/__init__.py
@@ -53,4 +53,4 @@ def setup():
 setup()
 
 
-__version__ = "1.6a0"
+__version__ = "1.6"