[plugin_platform_interface] Don't use const Object as a token (#2417)

packages/plugin_platform_interface/CHANGELOG.md

diff --git a/packages/plugin_platform_interface/CHANGELOG.md b/packages/plugin_platform_interface/CHANGELOG.md
index 29f2ef9..9fa28ec 100644
--- a/packages/plugin_platform_interface/CHANGELOG.md
+++ b/packages/plugin_platform_interface/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.0.1
+
+* Fixed a bug that made all platform interfaces appear as mocks in release builds (https://github.com/flutter/flutter/issues/46941).
+
 ## 1.0.0 - Initial release.
 
 * Provides `PlatformInterface` with common mechanism for enforcing that a platform interface