diff --git a/changelogs/4.0-snapshot.md b/changelogs/4.0-snapshot.md
index 29d3bb32a..8fa02fb84 100644
--- a/changelogs/4.0-snapshot.md
+++ b/changelogs/4.0-snapshot.md
@@ -713,6 +713,10 @@ However, if we add `src-namespace-prefix: pmmp\TesterPlugin` to the `plugin.yml`
 - The following classes have been renamed:
   - `BaseLang` -> `Language`
 - `LanguageNotFoundException` has been added. This is thrown when trying to construct a `Language` which doesn't exist in the server files.
+- `TranslationContainer` no longer discards keys for translation parameters. Previously, only the insertion order was considered.
+- `TranslationContainer` now supports string keys for translation parameters.
+- `TranslationContainer` now supports providing other `TranslationContainers` as translation parameters.
+- `Language->translateString()` now supports providing `TranslationContainers` as translation parameters.
 
 
 ### Network