diff --git a/CHANGELOG.md b/CHANGELOG.md
index fac9a24..514679d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 
 ## [Unreleased]
 
+## [2021.3.0]
+
 ### Added
 - support for sensors without `has-measure-trigger` trait
 - support for sensors that implement `has-mapping` trait
@@ -47,7 +49,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 - initial release
 - previously released under the name "PyCMDS" via github, never packaged.
 
-[Unreleased]: https://github.com/wright-group/yaqc-cmds/compare/2021.1.0...master
+[Unreleased]: https://github.com/wright-group/yaqc-cmds/compare/2021.3.0...master
+[2021.3.0]: https://github.com/wright-group/yaqc-cmds/compare/2021.1.1...2021.3.0
 [2021.1.1]: https://github.com/wright-group/yaqc-cmds/compare/2021.1.0...2021.1.1
 [2021.1.0]: https://github.com/wright-group/yaqc-cmds/compare/2020.12.1...2021.1.0
 [2020.12.1]: https://github.com/wright-group/yaqc-cmds/compare/2020.12.0...2020.12.1
diff --git a/yaqc_cmds/VERSION b/yaqc_cmds/VERSION
index 09657e4..a76c929 100644
--- a/yaqc_cmds/VERSION
+++ b/yaqc_cmds/VERSION
@@ -1 +1 @@
-2021.1.1
+2021.3.0