diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5b0713437a..42a11e42ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ ENHANCEMENTS:
 - OpenTofu now uses the `BROWSER` environment variable when launching a web browser on Unix platforms, as long as it's set to a single command that can accept a URL to open as its first and only argument. ([#3456](https://github.com/opentofu/opentofu/issues/3456))
 - Improve performance around provider checking and schema management. ([#2730](https://github.com/opentofu/opentofu/pull/2730))
 - `tofu init` now fetches providers and their metadata in parallel. Depending on provider size and network properties, this can reduce provider installation and checking time. ([#2729](https://github.com/opentofu/opentofu/pull/2729))
+- The `yamldecode` function now supports the "merge" tag, most commonly written as `<<` where a map key would be expected, with sequences of mappings rather than just individual mappings. ([#3607](https://github.com/opentofu/opentofu/pull/3607))
 
 BUG FIXES: