diff --git a/CHANGELOG.md b/CHANGELOG.md
index cf4f5ed54..a166de303 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,86 @@
+# 0.26.0
+* Breaking changes:
+  * Deleted `dfareporting_v3_0`
+* Backwards compatible changes:
+  * Added `content_v2_1`
+  * Added `driveactivity_v2`
+  * Added `iap_v1`
+  * Added `pagespeedonline_v5`
+  * Updated `adexchangebuyer2_v2beta1`
+  * Updated `alertcenter_v1beta1`
+  * Updated `androiddeviceprovisioning_v1`
+  * Updated `androidenterprise_v1`
+  * Updated `androidmanagement_v1`
+  * Updated `androidpublisher_v3`
+  * Updated `appengine_v1`
+  * Updated `appengine_v1beta`
+  * Updated `bigquery_v2`
+  * Updated `calendar_v3`
+  * Updated `classroom_v1`
+  * Updated `cloudasset_v1beta1`
+  * Updated `clouddebugger_v2`
+  * Updated `cloudfunctions_v1`
+  * Updated `cloudfunctions_v1beta2`
+  * Updated `cloudiot_v1`
+  * Updated `cloudkms_v1`
+  * Updated `cloudsearch_v1`
+  * Updated `composer_v1`
+  * Updated `compute_alpha`
+  * Updated `compute_beta`
+  * Updated `compute_v1`
+  * Updated `container_v1`
+  * Updated `container_v1beta1`
+  * Updated `content_v2`
+  * Updated `dataflow_v1b3`
+  * Updated `dataproc_v1`
+  * Updated `dataproc_v1beta2`
+  * Updated `dialogflow_v2`
+  * Updated `dialogflow_v2beta1`
+  * Updated `dlp_v2`
+  * Updated `dns_v1beta2`
+  * Updated `drive_v2`
+  * Updated `drive_v3`
+  * Updated `firebasedynamiclinks_v1`
+  * Updated `firebasehosting_v1beta1`
+  * Updated `firestore_v1`
+  * Updated `fitness_v1`
+  * Updated `games_management_v1management`
+  * Updated `games_v1`
+  * Updated `genomics_v2alpha1`
+  * Updated `gmail_v1`
+  * Updated `iap_v1beta1`
+  * Updated `jobs_v2`
+  * Updated `jobs_v3`
+  * Updated `jobs_v3p1beta1`
+  * Updated `monitoring_v3`
+  * Updated `people_v1`
+  * Updated `pubsub_v1`
+  * Updated `redis_v1`
+  * Updated `redis_v1beta1`
+  * Updated `runtimeconfig_v1beta1`
+  * Updated `script_v1`
+  * Updated `serviceconsumermanagement_v1`
+  * Updated `servicecontrol_v1`
+  * Updated `servicemanagement_v1`
+  * Updated `servicenetworking_v1beta`
+  * Updated `serviceusage_v1`
+  * Updated `serviceusage_v1beta1`
+  * Updated `sheets_v4`
+  * Updated `slides_v1`
+  * Updated `sourcerepo_v1`
+  * Updated `speech_v1`
+  * Updated `sqladmin_v1beta4`
+  * Updated `storage_v1`
+  * Updated `streetviewpublish_v1`
+  * Updated `tasks_v1`
+  * Updated `testing_v1`
+  * Updated `toolresults_v1beta3`
+  * Updated `vault_v1`
+  * Updated `vision_v1`
+  * Updated `vision_v1p1beta1`
+  * Updated `vision_v1p2beta1`
+  * Updated `youtube_partner_v1`
+
 # 0.25.0
 * Breaking changes:
   * Deleted `dfareporting_v2_8`
diff --git a/lib/google/apis/version.rb b/lib/google/apis/version.rb
index a54de06ca..28c387215 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 = '0.25.0'.freeze
+    VERSION = '0.26.0'.freeze
 
     # Current operating system
     # @private