chore: release 0.91.0 (#4557)
diff --git a/CHANGES.md b/CHANGES.md
index 68ca604..f3b0f80 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,25 @@
# Changes
+## [0.91.0](https://www.github.com/googleapis/google-cloud-go/compare/v0.90.0...v0.91.0) (2021-08-11)
+
+
+### Features
+
+* **.github:** support dynamic submodule detection ([#4537](https://www.github.com/googleapis/google-cloud-go/issues/4537)) ([4374b90](https://www.github.com/googleapis/google-cloud-go/commit/4374b907e9f166da6bd23a8ef94399872b00afd6))
+* **dialogflow/cx:** add advanced settings for agent level feat: add rollout config, state and failure reason for experiment feat: add insights export settings for security setting feat: add language code for streaming recognition result and flow versions for query parameters docs: deprecate legacy logging settings ([ed73554](https://www.github.com/googleapis/google-cloud-go/commit/ed735541dc57d0681d84b46853393eac5f7ccec3))
+* **dialogflow/cx:** add advanced settings for agent level feat: add rollout config, state and failure reason for experiment feat: add insights export settings for security setting feat: add language code for streaming recognition result and flow versions for query parameters docs: deprecate legacy logging settings ([ed73554](https://www.github.com/googleapis/google-cloud-go/commit/ed735541dc57d0681d84b46853393eac5f7ccec3))
+* **dialogflow/cx:** added support for DLP templates; expose `Locations` service to get/list avaliable locations of Dialogflow products ([5996846](https://www.github.com/googleapis/google-cloud-go/commit/59968462a3870c6289166fa1161f9b6d9c10e093))
+* **dialogflow/cx:** added support for DLP templates; expose `Locations` service to get/list avaliable locations of Dialogflow products docs: reorder some fields ([5996846](https://www.github.com/googleapis/google-cloud-go/commit/59968462a3870c6289166fa1161f9b6d9c10e093))
+* **dialogflow:** expose `Locations` service to get/list avaliable locations of Dialogflow products; fixed some API annotations ([5996846](https://www.github.com/googleapis/google-cloud-go/commit/59968462a3870c6289166fa1161f9b6d9c10e093))
+* **kms:** add support for HMAC, Variable Key Destruction, and GenerateRandom ([5996846](https://www.github.com/googleapis/google-cloud-go/commit/59968462a3870c6289166fa1161f9b6d9c10e093))
+* **speech:** add total_billed_time response field ([5996846](https://www.github.com/googleapis/google-cloud-go/commit/59968462a3870c6289166fa1161f9b6d9c10e093))
+* **video/transcoder:** Add video cropping feature feat: Add video padding feature feat: Add ttl_after_completion_days field to Job docs: Update proto documentation docs: Indicate v1beta1 deprecation ([5996846](https://www.github.com/googleapis/google-cloud-go/commit/59968462a3870c6289166fa1161f9b6d9c10e093))
+
+
+### Bug Fixes
+
+* **functions:** Updating behavior of source_upload_url during Get/List function calls ([381a494](https://www.github.com/googleapis/google-cloud-go/commit/381a494c29da388977b0bdda2177058328cc4afe))
+
## [0.90.0](https://www.github.com/googleapis/google-cloud-go/compare/v0.89.0...v0.90.0) (2021-08-03)
