Add changelog for 0.14.0

CHANGELOG.md

@@ -23,6 +23,45 @@
 
 All notable changes to this project will be documented in this file.
 
+[0.14.0] 2024-09-23
+
+## Important notice
+
+- The client has dropped support for Go 1.20. The minimum supported version is now Go
+  1.21. ([Related PR](https://github.com/apache/pulsar-client-go/pull/1249))
+- The `BackoffPolicy` interface and related methods has been moved to the `backoff` package from the `internal` package.
+  The `BackoffPolicy` interface is renamed to
+  `Policy`. ([Related PR](https://github.com/apache/pulsar-client-go/pull/1197))
+
+## What's Changed
+* [improve] Install golang by image in the Dockerfile by @nodece in https://github.com/apache/pulsar-client-go/pull/1246
+* [ci] Validate multiple version builds and use golangci-lint-action by @nodece in https://github.com/apache/pulsar-client-go/pull/1250
+* [ci] Add merge limitation by @nodece in https://github.com/apache/pulsar-client-go/pull/1248
+* [fix] Fix the key-based batch can't guarantee the ordering when flushing by @RobertIndie in https://github.com/apache/pulsar-client-go/pull/1252
+* [fix] FailTimeoutMessages cannot delete outdated messages by @nodece in https://github.com/apache/pulsar-client-go/pull/1247
+* [fix] Fix pulsar admin revoke subscription permission endpoint by @NoFacePeace in https://github.com/apache/pulsar-client-go/pull/1251
+* [fix] Producer close was blocked by @nodece in https://github.com/apache/pulsar-client-go/pull/1249
+* [fix] PulsarCtl 1266 Oauth2 Client credentials flow use scopes from the keyfile as well by @Nikolajls in https://github.com/apache/pulsar-client-go/pull/1244
+* [feat] Add support for subscription expiration time namespace settings by @klevy-toast in https://github.com/apache/pulsar-client-go/pull/1254
+* [fix] Prevent panic when calling Flush on closed producer by @Gilthoniel in https://github.com/apache/pulsar-client-go/pull/1260
+* [fix] Avoid a data race when flushing with load by @Gilthoniel in https://github.com/apache/pulsar-client-go/pull/1261
+* [improve] Add InitialSubscriptionName for DLQPolicy by @crossoverJie in https://github.com/apache/pulsar-client-go/pull/1264
+* [fix] Peek message will return -1 for partitionIndex by @shibd in https://github.com/apache/pulsar-client-go/pull/1267
+* [chore] Bump github.com/docker/docker from 27.0.3+incompatible to 27.1.1+incompatible by @dependabot in https://github.com/apache/pulsar-client-go/pull/1269
+* [feat] Support the namespace offloadThresholdInSeconds API in pulsaradmin pkg by @ericsyh in https://github.com/apache/pulsar-client-go/pull/1271
+* [fix] Stop timer when close timedAckGroupingTracker by @geniusjoe in https://github.com/apache/pulsar-client-go/pull/1279
+* [improve] Refactor connection concurrency model by @Gilthoniel in https://github.com/apache/pulsar-client-go/pull/1275
+* [fix] Attempt to avoid deadlock during reconnection by @Gilthoniel in https://github.com/apache/pulsar-client-go/pull/1273
+* [fix] Fixed panic caused by memory not aligned in arm32 arch by @dream-kzx in https://github.com/apache/pulsar-client-go/pull/1286
+* [fix] Reconnection logic and Backoff policy doesn't work correctly by @crossoverJie in https://github.com/apache/pulsar-client-go/pull/1197
+
+## New Contributors
+* @NoFacePeace made their first contribution in https://github.com/apache/pulsar-client-go/pull/1251
+* @Nikolajls made their first contribution in https://github.com/apache/pulsar-client-go/pull/1244
+* @klevy-toast made their first contribution in https://github.com/apache/pulsar-client-go/pull/1254
+* @ericsyh made their first contribution in https://github.com/apache/pulsar-client-go/pull/1271
+* @dream-kzx made their first contribution in https://github.com/apache/pulsar-client-go/pull/1286
+
 [0.13.1] 2024-08-02
 
 - [fix] Avoid a data race when flushing with load by Gaylor Bosson in [#1261](https://github.com/apache/pulsar-client-go/pull/1261)