release: cut the v21.2.20 release

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="21.2.19"></a>
 # 21.2.19 (2026-07-29)
 ### compiler

package.json

@@ -1,6 +1,6 @@
 {
   "name": "angular-srcs",
-  "version": "21.2.19",
+  "version": "21.2.20",
   "private": true,
   "description": "Angular - a web framework for modern web apps",
   "homepage": "https://github.com/angular/angular",