diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,33 @@
+<a name="6.0.0-beta.0"></a>
+# [6.0.0-beta.0](https://github.com/angular/angular/compare/5.2.0...6.0.0-beta.0) (2018-01-17)
+
+
+### Bug Fixes
+
+* **animations:** fix increment/decrement aliases example ([#18323](https://github.com/angular/angular/issues/18323)) ([d2aa8ac](https://github.com/angular/angular/commit/d2aa8ac))
+* **benchpress:** should still support selenium_webdriver < 3.6.0 ([#21477](https://github.com/angular/angular/issues/21477)) ([9b84a32](https://github.com/angular/angular/commit/9b84a32))
+* **common:** set correct timezone for ISO8601 dates in Safari ([#21506](https://github.com/angular/angular/issues/21506)) ([05208b8](https://github.com/angular/angular/commit/05208b8)), closes [#21491](https://github.com/angular/angular/issues/21491)
+* **compiler:** cache external reference resolution ([#21359](https://github.com/angular/angular/issues/21359)) ([e3e2fc0](https://github.com/angular/angular/commit/e3e2fc0))
+* **compiler:** make `.ngsummary.json` files idempotent ([#21448](https://github.com/angular/angular/issues/21448)) ([e64b1e9](https://github.com/angular/angular/commit/e64b1e9))
+* **core:** fix chained http call ([#20924](https://github.com/angular/angular/issues/20924)) ([7e3f9a4](https://github.com/angular/angular/commit/7e3f9a4)), closes [#20921](https://github.com/angular/angular/issues/20921)
+* **ivy:** Add workaround for AJD in google3 ([#21488](https://github.com/angular/angular/issues/21488)) ([6af3672](https://github.com/angular/angular/commit/6af3672))
+* **language-service:** Clear caches when program changes ([#21337](https://github.com/angular/angular/issues/21337)) ([43e1520](https://github.com/angular/angular/commit/43e1520)), closes [#19405](https://github.com/angular/angular/issues/19405)
+* **service-worker:** properly handle invalid hashes in all scenarios ([#21288](https://github.com/angular/angular/issues/21288)) ([3951098](https://github.com/angular/angular/commit/3951098))
+
+
+### Features
+
+* **bazel:** allow ng_module rules to control whether type checking is enabled ([#21460](https://github.com/angular/angular/issues/21460)) ([cffa0fe](https://github.com/angular/angular/commit/cffa0fe))
+* **core:** add binding name to content changed error ([#20352](https://github.com/angular/angular/issues/20352)) ([d3bf54b](https://github.com/angular/angular/commit/d3bf54b))
+* **forms:** handle string with and without line boundary on pattern validator ([#19256](https://github.com/angular/angular/issues/19256)) ([54bf179](https://github.com/angular/angular/commit/54bf179))
+
+
+### Performance Improvements
+
+* **ivy:** add missing dom element in render3_function tree benchmark ([#21476](https://github.com/angular/angular/issues/21476)) ([9b5a485](https://github.com/angular/angular/commit/9b5a485))
+
+
+
 <a name="5.2.1"></a>
 ## [5.2.1](https://github.com/angular/angular/compare/5.2.0...5.2.1) (2018-01-17)