diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7188e28a50d..71080f3f778 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,18 @@
+<a name="21.2.20"></a>
+# 21.2.20 (2026-08-12)
+### core
+| Commit | Type | Description |
+| -- | -- | -- |
+| [6afe6fa781](https://github.com/angular/angular/commit/6afe6fa781c2f0931f0aedd729b9884a8fe212ee) | fix | sanitize host bindings on concrete hosts |
+### http
+| Commit | Type | Description |
+| -- | -- | -- |
+| [fec5977df4](https://github.com/angular/angular/commit/fec5977df4dda3a10d5ce2923e3e06d86ba11ee7) | fix | match header values exactly when deleting |
+| [e33d69a71c](https://github.com/angular/angular/commit/e33d69a71c5beb8fe5785b53fd6b37658334e8e0) | fix | preserve immutability of materialized clones |
+| [caf616670f](https://github.com/angular/angular/commit/caf616670fd20d528aa69e0131cc17d60f0cc27d) | fix | run root interceptors in the terminal request chain |
+
+<!-- CHANGELOG SPLIT MARKER -->
+
 <a name="22.2.0-next.1"></a>
 # 22.2.0-next.1 (2026-08-07)
 ### core