Add CHANGELOG.md entry

brizental · brizental · commit 5708b86ea6d1 · 2021-05-17T17:58:26.000+02:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -3,6 +3,7 @@
 [Full changelog](https://github.com/mozilla/glean.js/compare/v0.12.0...main)
 
 * [#313](https://github.com/mozilla/glean.js/pull/313): Implement error recording mechanism and error checking testing API.
+* [#319](https://github.com/mozilla/glean.js/pull/319): BUGFIX: Do not allow recording floats with the quantity and counter metric types.
 
 # v0.12.0 (2021-05-11)
 
