diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ef178d859..12e4ead348 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,17 @@
+<a name="5.2.6"></a>
+## [5.2.6](https://github.com/angular/angular/compare/5.2.5...5.2.6) (2018-02-22)
+
+### Bug Fixes
+
+* **common:** correct mapping of Observable methods ([#20518](https://github.com/angular/angular/issues/20518)) ([ce5e8fa](https://github.com/angular/angular/commit/ce5e8fa)), closes [#20516](https://github.com/angular/angular/issues/20516)
+* **common:** then and else template might be set to null ([#22298](https://github.com/angular/angular/issues/22298)) ([af6a056](https://github.com/angular/angular/commit/af6a056))
+* **compiler-cli:** add missing entry point to package, update tsickle ([#22295](https://github.com/angular/angular/issues/22295)) ([c5418c7](https://github.com/angular/angular/commit/c5418c7))
+* **core:** properly handle function without prototype in reflector ([#22284](https://github.com/angular/angular/issues/22284)) ([5ec38f2](https://github.com/angular/angular/commit/5ec38f2)), closes [#19978](https://github.com/angular/angular/issues/19978)
+* **core:** support metadata reflection for native class types ([#22356](https://github.com/angular/angular/issues/22356)) ([ee91de9](https://github.com/angular/angular/commit/ee91de9)), closes [#21731](https://github.com/angular/angular/issues/21731)
+
 <a name="5.2.5"></a>
 ## [5.2.5](https://github.com/angular/angular/compare/5.2.4...5.2.5) (2018-02-14)
 
-
 ### Bug Fixes
 
 * **aio:** update Firebase redirects and SW routes ([#21763](https://github.com/angular/angular/pull/21763)) ([#22104](https://github.com/angular/angular/pull/22104)) ([15ff7ba](https://github.com/angular/angular/commit/15ff7ba)), closes [#21377](https://github.com/angular/angular/issues/21377)