Update changelog

Mafii · Mafii · commit 7d15889254fb · 2021-07-01T09:01:07.000+02:00
diff --git a/changelog.md b/changelog.md
@@ -13,3 +13,6 @@
 ## 0.2.1
 * Add compatibility for Autofac 6.x.
 * Only depend on `System.Collections.Immutable` when targeting .NET Standard.
+
+## 0.2.2
+* Remove upper constraint on `System.Collections.Immutable`
