diff --git a/.zenodo.json b/.zenodo.json
index b024f24..46c7908 100644
--- a/.zenodo.json
+++ b/.zenodo.json
@@ -5,6 +5,11 @@
"affiliation": "Open Force Field Consortium, Open Molecular Software Foundation, Davis, CA, USA",
"name": "McIsaac, Alexandra"
},
+ {
+ "orcid": "0000-0002-6878-0192",
+ "affiliation": "Open Force Field Consortium, Open Molecular Software Foundation, Davis, CA, USA",
+ "name": "Westbrook, Brent"
+ },
{
"orcid": "0000-0001-6583-2148",
"affiliation": "Pharmaceutical Sciences, University of California Irvine, Irvine, CA, USA",
diff --git a/README.md b/README.md
index e15135a..f42b130 100644
--- a/README.md
+++ b/README.md
@@ -165,6 +165,8 @@ Force fields moving forward will be called `name-X.Y.Z`
- `2024.01.0`: This release adds `openff-2.1.1.offxml` and `openff_unconstrained-2.1.1.offxml`, Sage 2.1.1, which has identical parameters to Sage 2.1.0 (originally released in version `2023.05.1` of the `openff-forcefields` package) but adds Xe van der Waals parameters from [Tang, K.T., Toennies, J.P. New combining rules for well parameters and shapes of the van der Waals potential of mixed rare gas systems. Z Phys D - Atoms, Molecules and Clusters 1, 91–101 (1986).](https://doi.org/10.1007/BF01384663)
+- `2024.03.0`: This release adds `openff-2.2.0-rc1.offxml` and `openff_unconstrained-2.2.0-rc1.offxml`, Sage 2.2.0 Release Candidate 1, which modifies some small ring internal angles and remedies issues with sulfamide geometries.
+
#### Acknowledgements
Project based on the
diff --git a/openforcefields/offxml/openff-2.2.0-rc1.offxml b/openforcefields/offxml/openff-2.2.0-rc1.offxml
new file mode 100644
index 0000000..3bb9006
--- /dev/null
+++ b/openforcefields/offxml/openff-2.2.0-rc1.offxml
@@ -0,0 +1,395 @@
+
+
+ The Open Force Field Initiative
+ 2024-03-06
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/openforcefields/offxml/openff_unconstrained-2.2.0-rc1.offxml b/openforcefields/offxml/openff_unconstrained-2.2.0-rc1.offxml
new file mode 100644
index 0000000..584d060
--- /dev/null
+++ b/openforcefields/offxml/openff_unconstrained-2.2.0-rc1.offxml
@@ -0,0 +1,394 @@
+
+
+ The Open Force Field Initiative
+ 2024-03-06
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+