diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d15e59ab..88e176460 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,143 @@
+# 0.21.0
+* Breaking changes:
+  * Deleted `prediction_v1_2`
+  * Deleted `prediction_v1_3`
+  * Deleted `prediction_v1_4`
+  * Deleted `prediction_v1_5`
+  * Deleted `prediction_v1_6`
+  * Deleted `taskqueue_v1beta1`
+* Backwards compatible changes:
+  * Added `androidpublisher_v3`
+  * Added `jobs_v2`
+  * Added `photoslibrary_v1`
+  * Added `servicebroker_v1`
+  * Added `servicebroker_v1alpha1`
+  * Added `servicebroker_v1beta1`
+  * Added `videointelligence_v1`
+  * Added `websecurityscanner_v1alpha`
+  * Added `youtube_analytics_v2`
+  * Updated `abusiveexperiencereport_v1`
+  * Updated `adexchangebuyer2_v2beta1`
+  * Updated `adexchangebuyer_v1_2`
+  * Updated `adexchangebuyer_v1_3`
+  * Updated `adexchangeseller_v1`
+  * Updated `adexchangeseller_v1_1`
+  * Updated `adexchangeseller_v2_0`
+  * Updated `adexperiencereport_v1`
+  * Updated `admin_directory_v1`
+  * Updated `admin_reports_v1`
+  * Updated `adsense_v1_4`
+  * Updated `adsensehost_v4_1`
+  * Updated `analytics_v2_4`
+  * Updated `analytics_v3`
+  * Updated `androiddeviceprovisioning_v1`
+  * Updated `androidenterprise_v1`
+  * Updated `androidmanagement_v1`
+  * Updated `androidpublisher_v1`
+  * Updated `androidpublisher_v1_1`
+  * Updated `androidpublisher_v2`
+  * Updated `appsactivity_v1`
+  * Updated `appstate_v1`
+  * Updated `bigquery_v2`
+  * Updated `bigquerydatatransfer_v1`
+  * Updated `books_v1`
+  * Updated `calendar_v3`
+  * Updated `chat_v1`
+  * Updated `classroom_v1`
+  * Updated `cloudbilling_v1`
+  * Updated `cloudfunctions_v1`
+  * Updated `cloudfunctions_v1beta2`
+  * Updated `cloudiot_v1`
+  * Updated `cloudkms_v1`
+  * Updated `cloudresourcemanager_v1`
+  * Updated `cloudresourcemanager_v1beta1`
+  * Updated `cloudresourcemanager_v2`
+  * Updated `cloudresourcemanager_v2beta1`
+  * Updated `cloudtasks_v2beta2`
+  * Updated `cloudtrace_v1`
+  * Updated `compute_alpha`
+  * Updated `compute_beta`
+  * Updated `compute_v1`
+  * Updated `container_v1`
+  * Updated `container_v1beta1`
+  * Updated `content_v2`
+  * Updated `content_v2sandbox`
+  * Updated `customsearch_v1`
+  * Updated `dataflow_v1b3`
+  * Updated `dataproc_v1`
+  * Updated `dataproc_v1beta2`
+  * Updated `datastore_v1`
+  * Updated `datastore_v1beta1`
+  * Updated `datastore_v1beta3`
+  * Updated `deploymentmanager_alpha`
+  * Updated `deploymentmanager_v2`
+  * Updated `deploymentmanager_v2beta`
+  * Updated `dialogflow_v2`
+  * Updated `dialogflow_v2beta1`
+  * Updated `dlp_v2`
+  * Updated `dns_v1`
+  * Updated `dns_v1beta2`
+  * Updated `dns_v2beta1`
+  * Updated `doubleclicksearch_v2`
+  * Updated `drive_v2`
+  * Updated `drive_v3`
+  * Updated `firebasedynamiclinks_v1`
+  * Updated `firestore_v1beta1`
+  * Updated `fusiontables_v1`
+  * Updated `games_configuration_v1configuration`
+  * Updated `games_management_v1management`
+  * Updated `games_v1`
+  * Updated `genomics_v1`
+  * Updated `genomics_v1alpha2`
+  * Updated `genomics_v2alpha1`
+  * Updated `iam_v1`
+  * Updated `identitytoolkit_v3`
+  * Updated `logging_v2`
+  * Updated `logging_v2beta1`
+  * Updated `mirror_v1`
+  * Updated `ml_v1`
+  * Updated `oauth2_v1`
+  * Updated `oauth2_v2`
+  * Updated `oslogin_v1`
+  * Updated `oslogin_v1alpha`
+  * Updated `oslogin_v1beta`
+  * Updated `pagespeedonline_v1`
+  * Updated `pagespeedonline_v2`
+  * Updated `plus_domains_v1`
+  * Updated `plus_v1`
+  * Updated `pubsub_v1`
+  * Updated `pubsub_v1beta1a`
+  * Updated `pubsub_v1beta2`
+  * Updated `runtimeconfig_v1`
+  * Updated `runtimeconfig_v1beta1`
+  * Updated `script_v1`
+  * Updated `servicecontrol_v1`
+  * Updated `servicemanagement_v1`
+  * Updated `serviceusage_v1beta1`
+  * Updated `sheets_v4`
+  * Updated `slides_v1`
+  * Updated `spanner_v1`
+  * Updated `spectrum_v1explorer`
+  * Updated `speech_v1`
+  * Updated `sqladmin_v1beta3`
+  * Updated `storage_v1`
+  * Updated `storage_v1beta1`
+  * Updated `storage_v1beta2`
+  * Updated `storagetransfer_v1`
+  * Updated `surveys_v2`
+  * Updated `texttospeech_v1beta1`
+  * Updated `toolresults_v1beta3`
+  * Updated `tpu_v1alpha1`
+  * Updated `vault_v1`
+  * Updated `videointelligence_v1beta1`
+  * Updated `vision_v1`
+  * Updated `vision_v1p1beta1`
+  * Updated `vision_v1p2beta1`
+  * Updated `youtube_analytics_v1`
+  * Updated `youtube_analytics_v1beta1`
+  * Updated `youtube_partner_v1`
+  * Updated `youtube_v3`
+
 # 0.20.1
 * Backwards compatible changes:
   * Updated `adexchangebuyer2_v2beta1`
diff --git a/lib/google/apis/version.rb b/lib/google/apis/version.rb
index e5c0f14e1..445408516 100644
--- a/lib/google/apis/version.rb
+++ b/lib/google/apis/version.rb
@@ -15,7 +15,7 @@
 module Google
   module Apis
     # Client library version
-    VERSION = '0.20.1'
+    VERSION = '0.21.0'
 
     # Current operating system
     # @private