chore: release 0.77.0 (#3658)

diff --git a/CHANGES.md b/CHANGES.md
index fe12225..f411d53 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,34 @@
 # Changes
 
 
+## [0.77.0](https://www.github.com/googleapis/google-cloud-go/compare/v0.76.0...v0.77.0) (2021-02-16)
+
+
+### Features
+
+* **channel:** Add Pub/Sub endpoints for Cloud Channel API. ([1aea7c8](https://www.github.com/googleapis/google-cloud-go/commit/1aea7c87d39eed87620b488ba0dd60b88ff26c04))
+* **dialogflow/cx:** supports SentimentAnalysisResult in webhook request docs: minor updates in wording ([2b4414d](https://www.github.com/googleapis/google-cloud-go/commit/2b4414d973e3445725cd38901bf75340c97fc663))
+* **errorreporting:** Make resolution status field available for error groups. Now callers can set the status of an error group by passing this to UpdateGroup. When not specified, it's treated like OPEN. feat: Make source location available for error groups created from GAE. ([2b4414d](https://www.github.com/googleapis/google-cloud-go/commit/2b4414d973e3445725cd38901bf75340c97fc663))
+* **errorreporting:** Make resolution status field available for error groups. Now callers can set the status of an error group by passing this to UpdateGroup. When not specified, it's treated like OPEN. feat: Make source location available for error groups created from GAE. ([f66114b](https://www.github.com/googleapis/google-cloud-go/commit/f66114bc7233ad06e18f38dd39497a74d85fdbd8))
+* **gkehub:** start generating apiv1beta1 ([#3698](https://www.github.com/googleapis/google-cloud-go/issues/3698)) ([8aed3bd](https://www.github.com/googleapis/google-cloud-go/commit/8aed3bd1bbbe983e4891c813e4c5dc9b3aa1b9b2))
+* **internal/docfx:** full cross reference linking ([#3656](https://www.github.com/googleapis/google-cloud-go/issues/3656)) ([fcb7318](https://www.github.com/googleapis/google-cloud-go/commit/fcb7318eb338bf3828ac831ed06ca630e1876418))
+* **memcache:** added ApplySoftwareUpdate API docs: various clarifications, new documentation for ApplySoftwareUpdate chore: update proto annotations ([2b4414d](https://www.github.com/googleapis/google-cloud-go/commit/2b4414d973e3445725cd38901bf75340c97fc663))
+* **networkconnectivity:** Add state field in resources docs: Minor changes ([0b4370a](https://www.github.com/googleapis/google-cloud-go/commit/0b4370a0d397913d932dbbdc2046a958dc3b836a))
+* **networkconnectivity:** Add state field in resources docs: Minor changes ([b4b5898](https://www.github.com/googleapis/google-cloud-go/commit/b4b58987368f80494bbc7f651f50e9123200fb3f))
+* **recommendationengine:** start generating apiv1beta1 ([#3686](https://www.github.com/googleapis/google-cloud-go/issues/3686)) ([8f4e130](https://www.github.com/googleapis/google-cloud-go/commit/8f4e13009444d88a5a56144129f055623a2205ac))
+
+
+### Bug Fixes
+
+* **errorreporting:** Remove dependency on AppEngine's proto definitions. This also removes the source_references field. ([2b4414d](https://www.github.com/googleapis/google-cloud-go/commit/2b4414d973e3445725cd38901bf75340c97fc663))
+* **errorreporting:** Update bazel builds for ER client libraries. ([0b4370a](https://www.github.com/googleapis/google-cloud-go/commit/0b4370a0d397913d932dbbdc2046a958dc3b836a))
+* **internal/godocfx:** use exact list of top-level decls ([#3665](https://www.github.com/googleapis/google-cloud-go/issues/3665)) ([3cd2961](https://www.github.com/googleapis/google-cloud-go/commit/3cd2961bd7b9c29d82a21ba8850eff00c7c332fd))
+* **kms:** do not retry on 13 INTERNAL ([2b4414d](https://www.github.com/googleapis/google-cloud-go/commit/2b4414d973e3445725cd38901bf75340c97fc663))
+* **orgpolicy:** Fix constraint resource pattern annotation ([f66114b](https://www.github.com/googleapis/google-cloud-go/commit/f66114bc7233ad06e18f38dd39497a74d85fdbd8))
+* **orgpolicy:** Fix constraint resource pattern annotation ([0b4370a](https://www.github.com/googleapis/google-cloud-go/commit/0b4370a0d397913d932dbbdc2046a958dc3b836a))
+* **profiler:** make sure retries use the most up-to-date copy of the trailer ([#3660](https://www.github.com/googleapis/google-cloud-go/issues/3660)) ([3ba9ebc](https://www.github.com/googleapis/google-cloud-go/commit/3ba9ebcee2b8b43cdf2c8f8a3d810516a604b363))
+* **vision:** sync vision v1 protos to get extra FaceAnnotation Landmark Types ([2b4414d](https://www.github.com/googleapis/google-cloud-go/commit/2b4414d973e3445725cd38901bf75340c97fc663))
+
 ## [0.76.0](https://www.github.com/googleapis/google-cloud-go/compare/v0.75.0...v0.76.0) (2021-02-02)