diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,37 @@
+<a name="11.1.1"></a>
+## 11.1.1 (2021-01-27)
+
+
+### Bug Fixes
+
+* **compiler:** support multiple `:host-context()` selectors ([#40494](https://github.com/angular/angular/issues/40494)) ([72c0ba6](https://github.com/angular/angular/commit/72c0ba6)), closes [#19199](https://github.com/angular/angular/issues/19199)
+* **compiler-cli:** handle pseudo cycles in inline source-maps ([#40435](https://github.com/angular/angular/issues/40435)) ([566206b](https://github.com/angular/angular/commit/566206b)), closes [#40408](https://github.com/angular/angular/issues/40408)
+* **compiler-cli:** use `Map` rather than `object` for map of partial linkers ([#40563](https://github.com/angular/angular/issues/40563)) ([33e0f2b](https://github.com/angular/angular/commit/33e0f2b))
+* **core:** fix possible XSS attack in development through SSR ([#40525](https://github.com/angular/angular/issues/40525)) ([97ec6e4](https://github.com/angular/angular/commit/97ec6e4))
+* **core:** fix possible XSS attack in development through SSR ([#40525](https://github.com/angular/angular/issues/40525)) ([3bf6a99](https://github.com/angular/angular/commit/3bf6a99))
+* **core:** improve injector debug information in `ngDevMode` ([#40476](https://github.com/angular/angular/issues/40476)) ([4bb38c9](https://github.com/angular/angular/commit/4bb38c9))
+* **forms:** allow `patchValue()` method of `FormGroup` and `FormArray` classes to skip `null` values ([#40534](https://github.com/angular/angular/issues/40534)) ([2fab148](https://github.com/angular/angular/commit/2fab148)), closes [#36672](https://github.com/angular/angular/issues/36672) [#21021](https://github.com/angular/angular/issues/21021)
+* **forms:** properly cleanup in cases when FormControlName has no CVA ([#40526](https://github.com/angular/angular/issues/40526)) ([72fc6aa](https://github.com/angular/angular/commit/72fc6aa)), closes [#39235](https://github.com/angular/angular/issues/39235) [#40521](https://github.com/angular/angular/issues/40521)
+* **language-service:** implement realpath to resolve symlinks ([#40593](https://github.com/angular/angular/issues/40593)) ([77efc27](https://github.com/angular/angular/commit/77efc27))
+* **language-service:** recognize incomplete pipe bindings with whitespace ([#40346](https://github.com/angular/angular/issues/40346)) ([d88f18e](https://github.com/angular/angular/commit/d88f18e))
+* **localize:** include meaning in generated ARB files ([#40546](https://github.com/angular/angular/issues/40546)) ([5661298](https://github.com/angular/angular/commit/5661298)), closes [#40506](https://github.com/angular/angular/issues/40506)
+* **router:** always stringify matrix parameters ([#25095](https://github.com/angular/angular/issues/25095)) ([a8a27ef](https://github.com/angular/angular/commit/a8a27ef)), closes [#23165](https://github.com/angular/angular/issues/23165)
+* **router:** Fix occasional error when creating url tree in IE 11 and Edge ([#40488](https://github.com/angular/angular/issues/40488)) ([69fd942](https://github.com/angular/angular/commit/69fd942))
+* **service-worker:** handle error with console.error ([#40236](https://github.com/angular/angular/issues/40236)) ([37710b9](https://github.com/angular/angular/commit/37710b9))
+
+
+### Features
+
+* **language-service:** Add diagnostics to suggest turning on strict mode ([#40568](https://github.com/angular/angular/issues/40568)) ([defa627](https://github.com/angular/angular/commit/defa627))
+
+
+### Performance Improvements
+
+* **compiler-cli:** introduce fast path for resource-only updates ([#40561](https://github.com/angular/angular/issues/40561)) ([156103c](https://github.com/angular/angular/commit/156103c))
+* **core:** simplify bloom bucket computation ([#40489](https://github.com/angular/angular/issues/40489)) ([106734a](https://github.com/angular/angular/commit/106734a))
+
+
+
 <a name="11.1.0"></a>
 # 11.1.0 (2021-01-20)