diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7afe2c3a0..ba8799e609 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,83 @@
 
 All notable changes to this project will be documented in this file.
 
+[0.12.0] 2024-01-10
+
+## What's Changed
+* Improved the performance of schema and schema cache by @gunli in https://github.com/apache/pulsar-client-go/pull/1033
+* Fixed return when registerSendOrAckOp() failed by @gunli in https://github.com/apache/pulsar-client-go/pull/1045
+* Fixed the incorrect link in the release process by @RobertIndie in https://github.com/apache/pulsar-client-go/pull/1050
+* Fixed Producer by checking if message is nil by @gunli in https://github.com/apache/pulsar-client-go/pull/1047
+* Added 0.11.0 change log by @RobertIndie in https://github.com/apache/pulsar-client-go/pull/1048
+* Fixed 0.11.0 change log by @RobertIndie in https://github.com/apache/pulsar-client-go/pull/1054
+* Fixed issue 877 where ctx in partitionProducer.Send() was not performing as expected by @Gleiphir2769 in https://github.com/apache/pulsar-client-go/pull/1053
+* Fixed Producer by stopping block request even if Value and Payload are both set by @gunli in https://github.com/apache/pulsar-client-go/pull/1052
+* Improved Producer by simplifying the flush logic by @gunli in https://github.com/apache/pulsar-client-go/pull/1049
+* Fixed issue 1051: inaccurate producer memory limit in chunking and schema by @Gleiphir2769 in https://github.com/apache/pulsar-client-go/pull/1055
+* Fixed issue by sending Close Command on Producer/Consumer create timeout by @michaeljmarshall in https://github.com/apache/pulsar-client-go/pull/1061
+* Fixed issue 1057: producer flush operation is not guaranteed to flush all messages by @Gleiphir2769 in https://github.com/apache/pulsar-client-go/pull/1058
+* Fixed issue 1064: panic when trying to flush in DisableBatching=true by @Gleiphir2769 in https://github.com/apache/pulsar-client-go/pull/1065
+* Fixed transaction acknowledgement and send logic for chunk message by @liangyepianzhou in https://github.com/apache/pulsar-client-go/pull/1069
+* Fixed issue by closing consumer resources if creation fails by @michaeljmarshall in https://github.com/apache/pulsar-client-go/pull/1070
+* Fixed issue where client reconnected every authenticationRefreshCheckSeconds when using TLS authentication by @jffp113 in https://github.com/apache/pulsar-client-go/pull/1062
+* Corrected the SendAsync() description by @Gleiphir2769 in https://github.com/apache/pulsar-client-go/pull/1066
+* CI: replaced license header checker and formatter by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1077
+* Chore: allowed rebase and merge by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1080
+* Adopted pulsar-admin-go sources by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1079
+* Reverted: allowed rebase and merge by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1081
+* Fixed producer by failing all messages that are pending requests when closing like Java by @graysonzeng in https://github.com/apache/pulsar-client-go/pull/1059
+* Supported load config from env by @tuteng in https://github.com/apache/pulsar-client-go/pull/1089
+* Fixed issue where multiple calls to client.Close causes panic by @crossoverJie in https://github.com/apache/pulsar-client-go/pull/1046
+* Improved client by implementing GetLastMSgID for Reader by @liangyepianzhou in https://github.com/apache/pulsar-client-go/pull/1087
+* Fixed comment for ConnectionMaxIdleTime by @massakam in https://github.com/apache/pulsar-client-go/pull/1091
+* Issue 1094: connectionTimeout respects net.Dialer default timeout by @zzzming in https://github.com/apache/pulsar-client-go/pull/1095
+* Supported OAuth2 with scope field by @labuladong in https://github.com/apache/pulsar-client-go/pull/1097
+* Fixed issue where DisableReplication flag does not work by @massakam in https://github.com/apache/pulsar-client-go/pull/1100
+* Double-checked before consumer reconnect by @zccold in https://github.com/apache/pulsar-client-go/pull/1084
+* Fixed schema error by @leizhiyuan in https://github.com/apache/pulsar-client-go/pull/823
+* PR-1071-1: renamed pendingItem.Complete() to pendingItem.done() by @gunli in https://github.com/apache/pulsar-client-go/pull/1109
+* PR-1071-2: added sendRequest.done() to release resource together by @gunli in https://github.com/apache/pulsar-client-go/pull/1110
+* Refactor: factored out validateMsg by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1117
+* Refactor: factored out prepareTransaction by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1118
+* Completed comment on ProducerInterceptor interface BeforeSend method by @ojcm in https://github.com/apache/pulsar-client-go/pull/1119
+* Refactor: prepared sendrequest and moved to internalSendAsync by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1120
+* Fix: normalized all send request resource release into sr.done by @tisonkun in https://github.com/apache/pulsar-client-go/pull/1121
+* Improvement: added func blockIfQueueFull() to encapsulate DisableBlockIfQue… by @gunli in https://github.com/apache/pulsar-client-go/pull/1122
+* Improved debug log clarity in ReceivedSendReceipt() by @gunli in https://github.com/apache/pulsar-client-go/pull/1123
+* Fixed issue 1098 by checking batchBuilder in case batch is disabled by @zzzming in https://github.com/apache/pulsar-client-go/pull/1099
+* Fixed Producer by fixing reconnection backoff logic by @gunli in https://github.com/apache/pulsar-client-go/pull/1125
+* Added 0.11.1 change log by @RobertIndie in https://github.com/apache/pulsar-client-go/pull/1092
+* Fixed dead link to the KEYS file in the release process by @RobertIndie in https://github.com/apache/pulsar-client-go/pull/1127
+* Improved performance by pooling sendRequest by @gunli in https://github.com/apache/pulsar-client-go/pull/1126
+* Fixed argument order to Errorf in TableView message handling by @ojcm in https://github.com/apache/pulsar-client-go/pull/1130
+* Fixed Producer by double-checking before reconnect by @gunli in https://github.com/apache/pulsar-client-go/pull/1131
+* Fixed issue where client must not retry connecting to broker when topic is terminated by @pkumar-singh in https://github.com/apache/pulsar-client-go/pull/1128
+* Issue 1132: Fixed JSONSchema unmarshalling in TableView by @ojcm in https://github.com/apache/pulsar-client-go/pull/1133
+* Improved by setting dlq producerName by @crossoverJie in https://github.com/apache/pulsar-client-go/pull/1137
+* Fixed channel deadlock in regexp consumer by @goncalo-rodrigues in https://github.com/apache/pulsar-client-go/pull/1141
+* Fixed Producer: handled TopicNotFound/TopicTerminated/ProducerBlockedQuotaExceededException/ProducerFenced when reconnecting by @gunli in https://github.com/apache/pulsar-client-go/pull/1134
+* Transaction: Avoided a panic when using transaction by @Gilthoniel in https://github.com/apache/pulsar-client-go/pull/1144
+* Improved by updating connection.lastDataReceivedTime when connection is ready by @gunli in https://github.com/apache/pulsar-client-go/pull/1145
+* Improved Producer by normalizing and exporting the errors by @gunli in https://github.com/apache/pulsar-client-go/pull/1143
+* Updated Unsubscribe() interface comment by @geniusjoe in https://github.com/apache/pulsar-client-go/pull/1146
+* Issue 1105: Fixed AutoTopicCreation for type non-partitioned by @tomjo in https://github.com/apache/pulsar-client-go/pull/1107
+* Added test for admin topic creation by @RobertIndie in https://github.com/apache/pulsar-client-go/pull/1152
+* Implemented GetTopicAutoCreation by @jiangpengcheng in https://github.com/apache/pulsar-client-go/pull/1151
+* Bumped github.com/dvsekhvalnov/jose2go from 1.5.0 to 1.6.0 by @dependabot in https://github.com/apache/pulsar-client-go/pull/1150
+
+## New Contributors
+* @jffp113 made their first contribution in https://github.com/apache/pulsar-client-go/pull/1062
+* @tuteng made their first contribution in https://github.com/apache/pulsar-client-go/pull/1089
+* @zccold made their first contribution in https://github.com/apache/pulsar-client-go/pull/1084
+* @ojcm made their first contribution in https://github.com/apache/pulsar-client-go/pull/1119
+* @pkumar-singh made their first contribution in https://github.com/apache/pulsar-client-go/pull/1128
+* @goncalo-rodrigues made their first contribution in https://github.com/apache/pulsar-client-go/pull/1141
+* @Gilthoniel made their first contribution in https://github.com/apache/pulsar-client-go/pull/1144
+* @geniusjoe made their first contribution in https://github.com/apache/pulsar-client-go/pull/1146
+* @tomjo made their first contribution in https://github.com/apache/pulsar-client-go/pull/1107
+* @jiangpengcheng made their first contribution in https://github.com/apache/pulsar-client-go/pull/1151
+* @dependabot made their first contribution in https://github.com/apache/pulsar-client-go/pull/1150
+
 [0.11.1] 2023-09-11
 
 - Close consumer resources if the creation fails by @michaeljmarshall in [#1070](https://github.com/apache/pulsar-client-go/pull/1070)
diff --git a/VERSION b/VERSION
index dbf0637bab..725659e7c0 100644
--- a/VERSION
+++ b/VERSION
@@ -1,3 +1,3 @@
 // This version number refers to the currently released version number
 // Please fix the version when release.
-v0.11.1
+v0.12.0
diff --git a/stable.txt b/stable.txt
index 7e38472ca7..8a5f2e8dfe 100644
--- a/stable.txt
+++ b/stable.txt
@@ -1,3 +1,3 @@
 // This version number refers to the current stable version, generally is `VERSION - 1`.
 // Please fix the version when release.
-v0.11.1
+v0.12.0
\ No newline at end of file