Technoboy- commented on code in PR #527:
URL: https://github.com/apache/pulsar-site/pull/527#discussion_r1172003927


##########
release-notes/versioned/pulsar-2.11.1.md:
##########
@@ -0,0 +1,190 @@
+---
+id: pulsar-2.11.1
+title: Apache Pulsar 2.11.1
+sidebar_label: Apache Pulsar 2.11.1
+---
+
+#### 2023-04-19
+
+### Broker
+- AbstractBatchedMetadataStore - use AlreadyClosedException instead of 
IllegalStateException [#19284](https://github.com/apache/pulsar/pull/19284)
+- Add ref count for sticky hash to optimize the performance of Key_Shared 
subscription [#19167](https://github.com/apache/pulsar/pull/19167)
+- Pass subName for subscription operations in ServerCnx 
[#19184](https://github.com/apache/pulsar/pull/19184)
+- Enable custom metadata stores 
[#19208](https://github.com/apache/pulsar/pull/19208)
+- Topics stats shows msgBacklog but there reality no backlog 
[#19275](https://github.com/apache/pulsar/pull/19275)
+- Fix open cursor with null-initialPosition result with earliest position 
[#18416](https://github.com/apache/pulsar/pull/18416)
+- Added isActive in ManagedCursorImpl 
[#19341](https://github.com/apache/pulsar/pull/19341)
+- Replaced checkBackloggedCursors with checkBackloggedCursor(single 
subscription check) upon subscription 
[#19343](https://github.com/apache/pulsar/pull/19343)
+- Close TransactionBuffer when MessageDeduplication#checkStatus failed 
[#19289](https://github.com/apache/pulsar/pull/19289)
+- Fix the incorrect total size if use ML interceptor 
[#19404](https://github.com/apache/pulsar/pull/19404)
+- Support deleting partitioned topics with the keyword -partition- 
[#19230](https://github.com/apache/pulsar/pull/19230)
+- Correct the prompt message 
[#17009](https://github.com/apache/pulsar/pull/17009)
+- Expect msgs after server initiated CloseProducer 
[#19446](https://github.com/apache/pulsar/pull/19446)
+- Fix Npe thrown by splitBundle 
[#17370](https://github.com/apache/pulsar/pull/17370)
+- Fix executeWithRetry result is null 
[#17694](https://github.com/apache/pulsar/pull/17694)
+- ManagedLedger: move to FENCED state in case of BadVersionException 
[#17736](https://github.com/apache/pulsar/pull/17736)
+- Fix can not revoke permission after update topic partition 
[#17393](https://github.com/apache/pulsar/pull/17393)
+- Allow deletion of a namespace that was left in deleted status 
[#17592](https://github.com/apache/pulsar/pull/17592)
+- Add UncaughtExceptionHandler for every thread pool 
[#18211](https://github.com/apache/pulsar/pull/18211)
+- Support setting ForceDeleteNamespaceAllowed dynamically 
[#18181](https://github.com/apache/pulsar/pull/18181)
+- Support setting forceDeleteTenantAllowed dynamically 
[#18192](https://github.com/apache/pulsar/pull/18192)
+- Remove locallyAcquiredLock when removeOwnership 
[#18197](https://github.com/apache/pulsar/pull/18197)
+- Update the log print content of createSubscriptions 
[#18024](https://github.com/apache/pulsar/pull/18024)
+- Unify time unit at dropping the backlog on a topic 
[#17957](https://github.com/apache/pulsar/pull/17957)
+- Fix mutex never released when trimming 
[#17911](https://github.com/apache/pulsar/pull/17911)
+- Fix getChildren in MemoryMetadataStore and EtcdMetadataStore 
[#18172](https://github.com/apache/pulsar/pull/18172)
+- Fix the order of resource close in the InMemoryDelayedDeliveryTracker 
[#18000](https://github.com/apache/pulsar/pull/18000)
+- Allow to configure and disable the size of lookahead for detecting fixed 
delays in messages [#17907](https://github.com/apache/pulsar/pull/17907)
+- Make BookieId work with PulsarRegistrationDriver 
[#17922](https://github.com/apache/pulsar/pull/17922)
+- In the trimDeletedEntries method, release the removed entry 
[#18305](https://github.com/apache/pulsar/pull/18305)
+- Make Consumer#equals more effective 
[#18662](https://github.com/apache/pulsar/pull/18662)
+- PulsarRegistrationClient - implement getAllBookies and follow 
BookieServiceInfo updates [#18133](https://github.com/apache/pulsar/pull/18133)
+- Fix PulsarRegistrationClient and ZkRegistrationClient not aware rack info 
problem [#18672](https://github.com/apache/pulsar/pull/18672)
+- Simplify extract entryMetadata code in filterEntriesForConsumer 
[#18729](https://github.com/apache/pulsar/pull/18729)
+- Fix uncompleted future when get the topic policies of a deleted topic 
[#18824](https://github.com/apache/pulsar/pull/18824)
+- Close transactionBuffer after MessageDeduplication#checkStatus failed 
[#19157](https://github.com/apache/pulsar/pull/19157)
+- GetLastMessageId returns a wrong batch index of last message if enabled read 
compacted [#18877](https://github.com/apache/pulsar/pull/18877)
+- Fix multi invocation for ledger createComplete 
[#18975](https://github.com/apache/pulsar/pull/18975)
+- Fix txn coordinator recover handle committing and aborting txn race 
condition [#19201](https://github.com/apache/pulsar/pull/19201)
+- Reset individualDeletedMessagesSerializedSize after acked all messages 
[#19428](https://github.com/apache/pulsar/pull/19428)
+- Fix potential NPE cause future never complete 
[#19415](https://github.com/apache/pulsar/pull/19415)
+- Fix the return value of canConsumeAsync 
[#19412](https://github.com/apache/pulsar/pull/19412)
+- Close TransactionBuffer when create persistent topic timeout 
[#19384](https://github.com/apache/pulsar/pull/19384)
+- Handle changeToReadyState failure correctly in TC client 
[#19308](https://github.com/apache/pulsar/pull/19308)
+- The atomicity of multiple fields of ml is broken 
[#19346](https://github.com/apache/pulsar/pull/19346)
+- MessagesConsumedCounter of NonDurableCursor was initialized incorrectly 
[#19355](https://github.com/apache/pulsar/pull/19355)
+- Improve PersistentMessageExpiryMonitor expire speed when ledger not existed 
[#17842](https://github.com/apache/pulsar/pull/17842)
+- Always send correct transaction id in end txn response 
[#19137](https://github.com/apache/pulsar/pull/19137)
+- Allow superusers to abort transactions 
[#19467](https://github.com/apache/pulsar/pull/19467)
+- Make ServerCnx#originalAuthData volatile 
[#19507](https://github.com/apache/pulsar/pull/19507)
+- Validate originalPrincipal earlier in ServerCnx 
[#19270](https://github.com/apache/pulsar/pull/19270)
+- Require authRole is proxyRole to set originalPrincipal 
[#19455](https://github.com/apache/pulsar/pull/19455)
+- ServerCnx broken after recent cherry-picks 
[#19521](https://github.com/apache/pulsar/pull/19521)
+- ServerCnx: go to Failed state when auth fails 
[#19312](https://github.com/apache/pulsar/pull/19312)
+- Add test to verify authRole cannot change 
[#19430](https://github.com/apache/pulsar/pull/19430)
+- Make authentication refresh threadsafe 
[#19506](https://github.com/apache/pulsar/pull/19506)
+- OneStageAuth State: move authn out of constructor 
[#19295](https://github.com/apache/pulsar/pull/19295)
+- Allow proxy to pass same role for authRole and originalRole 
[#19557](https://github.com/apache/pulsar/pull/19557)
+- Copy command fields and fix potential thread-safety in ServerCnx 
[#19517](https://github.com/apache/pulsar/pull/19517)
+- Topic load fail by ledger lost 
[#19444](https://github.com/apache/pulsar/pull/19444)
+- Incorrect service name selection logic 
[#19505](https://github.com/apache/pulsar/pull/19505)
+- Make the service name resolver cache of PulsarWebResource expire after 
access [#19532](https://github.com/apache/pulsar/pull/19532)
+- Simplify enabling Broker, WS Proxy hostname verification 
[#19674](https://github.com/apache/pulsar/pull/19674)
+- Improve tls config on replication client and cluster cli 
[#19588](https://github.com/apache/pulsar/pull/19588)
+- Fix geo-replication admin 
[#19686](https://github.com/apache/pulsar/pull/19686)
+- Filter system topic when getting topic list by binary proto 
[#19667](https://github.com/apache/pulsar/pull/19667)
+- Fixed history load not releasing 
[#19560](https://github.com/apache/pulsar/pull/19560)
+- Fix loadbalance score caculation problem 
[#19420](https://github.com/apache/pulsar/pull/19420)

Review Comment:
   fixed



##########
release-notes/versioned/pulsar-2.11.1.md:
##########
@@ -0,0 +1,190 @@
+---
+id: pulsar-2.11.1
+title: Apache Pulsar 2.11.1
+sidebar_label: Apache Pulsar 2.11.1
+---
+
+#### 2023-04-19
+
+### Broker
+- AbstractBatchedMetadataStore - use AlreadyClosedException instead of 
IllegalStateException [#19284](https://github.com/apache/pulsar/pull/19284)
+- Add ref count for sticky hash to optimize the performance of Key_Shared 
subscription [#19167](https://github.com/apache/pulsar/pull/19167)
+- Pass subName for subscription operations in ServerCnx 
[#19184](https://github.com/apache/pulsar/pull/19184)
+- Enable custom metadata stores 
[#19208](https://github.com/apache/pulsar/pull/19208)
+- Topics stats shows msgBacklog but there reality no backlog 
[#19275](https://github.com/apache/pulsar/pull/19275)
+- Fix open cursor with null-initialPosition result with earliest position 
[#18416](https://github.com/apache/pulsar/pull/18416)
+- Added isActive in ManagedCursorImpl 
[#19341](https://github.com/apache/pulsar/pull/19341)
+- Replaced checkBackloggedCursors with checkBackloggedCursor(single 
subscription check) upon subscription 
[#19343](https://github.com/apache/pulsar/pull/19343)
+- Close TransactionBuffer when MessageDeduplication#checkStatus failed 
[#19289](https://github.com/apache/pulsar/pull/19289)
+- Fix the incorrect total size if use ML interceptor 
[#19404](https://github.com/apache/pulsar/pull/19404)
+- Support deleting partitioned topics with the keyword -partition- 
[#19230](https://github.com/apache/pulsar/pull/19230)
+- Correct the prompt message 
[#17009](https://github.com/apache/pulsar/pull/17009)
+- Expect msgs after server initiated CloseProducer 
[#19446](https://github.com/apache/pulsar/pull/19446)
+- Fix Npe thrown by splitBundle 
[#17370](https://github.com/apache/pulsar/pull/17370)
+- Fix executeWithRetry result is null 
[#17694](https://github.com/apache/pulsar/pull/17694)
+- ManagedLedger: move to FENCED state in case of BadVersionException 
[#17736](https://github.com/apache/pulsar/pull/17736)
+- Fix can not revoke permission after update topic partition 
[#17393](https://github.com/apache/pulsar/pull/17393)
+- Allow deletion of a namespace that was left in deleted status 
[#17592](https://github.com/apache/pulsar/pull/17592)
+- Add UncaughtExceptionHandler for every thread pool 
[#18211](https://github.com/apache/pulsar/pull/18211)
+- Support setting ForceDeleteNamespaceAllowed dynamically 
[#18181](https://github.com/apache/pulsar/pull/18181)
+- Support setting forceDeleteTenantAllowed dynamically 
[#18192](https://github.com/apache/pulsar/pull/18192)
+- Remove locallyAcquiredLock when removeOwnership 
[#18197](https://github.com/apache/pulsar/pull/18197)
+- Update the log print content of createSubscriptions 
[#18024](https://github.com/apache/pulsar/pull/18024)
+- Unify time unit at dropping the backlog on a topic 
[#17957](https://github.com/apache/pulsar/pull/17957)
+- Fix mutex never released when trimming 
[#17911](https://github.com/apache/pulsar/pull/17911)
+- Fix getChildren in MemoryMetadataStore and EtcdMetadataStore 
[#18172](https://github.com/apache/pulsar/pull/18172)
+- Fix the order of resource close in the InMemoryDelayedDeliveryTracker 
[#18000](https://github.com/apache/pulsar/pull/18000)
+- Allow to configure and disable the size of lookahead for detecting fixed 
delays in messages [#17907](https://github.com/apache/pulsar/pull/17907)
+- Make BookieId work with PulsarRegistrationDriver 
[#17922](https://github.com/apache/pulsar/pull/17922)
+- In the trimDeletedEntries method, release the removed entry 
[#18305](https://github.com/apache/pulsar/pull/18305)
+- Make Consumer#equals more effective 
[#18662](https://github.com/apache/pulsar/pull/18662)
+- PulsarRegistrationClient - implement getAllBookies and follow 
BookieServiceInfo updates [#18133](https://github.com/apache/pulsar/pull/18133)
+- Fix PulsarRegistrationClient and ZkRegistrationClient not aware rack info 
problem [#18672](https://github.com/apache/pulsar/pull/18672)
+- Simplify extract entryMetadata code in filterEntriesForConsumer 
[#18729](https://github.com/apache/pulsar/pull/18729)
+- Fix uncompleted future when get the topic policies of a deleted topic 
[#18824](https://github.com/apache/pulsar/pull/18824)
+- Close transactionBuffer after MessageDeduplication#checkStatus failed 
[#19157](https://github.com/apache/pulsar/pull/19157)
+- GetLastMessageId returns a wrong batch index of last message if enabled read 
compacted [#18877](https://github.com/apache/pulsar/pull/18877)
+- Fix multi invocation for ledger createComplete 
[#18975](https://github.com/apache/pulsar/pull/18975)
+- Fix txn coordinator recover handle committing and aborting txn race 
condition [#19201](https://github.com/apache/pulsar/pull/19201)
+- Reset individualDeletedMessagesSerializedSize after acked all messages 
[#19428](https://github.com/apache/pulsar/pull/19428)
+- Fix potential NPE cause future never complete 
[#19415](https://github.com/apache/pulsar/pull/19415)
+- Fix the return value of canConsumeAsync 
[#19412](https://github.com/apache/pulsar/pull/19412)
+- Close TransactionBuffer when create persistent topic timeout 
[#19384](https://github.com/apache/pulsar/pull/19384)
+- Handle changeToReadyState failure correctly in TC client 
[#19308](https://github.com/apache/pulsar/pull/19308)
+- The atomicity of multiple fields of ml is broken 
[#19346](https://github.com/apache/pulsar/pull/19346)
+- MessagesConsumedCounter of NonDurableCursor was initialized incorrectly 
[#19355](https://github.com/apache/pulsar/pull/19355)
+- Improve PersistentMessageExpiryMonitor expire speed when ledger not existed 
[#17842](https://github.com/apache/pulsar/pull/17842)
+- Always send correct transaction id in end txn response 
[#19137](https://github.com/apache/pulsar/pull/19137)
+- Allow superusers to abort transactions 
[#19467](https://github.com/apache/pulsar/pull/19467)
+- Make ServerCnx#originalAuthData volatile 
[#19507](https://github.com/apache/pulsar/pull/19507)
+- Validate originalPrincipal earlier in ServerCnx 
[#19270](https://github.com/apache/pulsar/pull/19270)
+- Require authRole is proxyRole to set originalPrincipal 
[#19455](https://github.com/apache/pulsar/pull/19455)
+- ServerCnx broken after recent cherry-picks 
[#19521](https://github.com/apache/pulsar/pull/19521)
+- ServerCnx: go to Failed state when auth fails 
[#19312](https://github.com/apache/pulsar/pull/19312)
+- Add test to verify authRole cannot change 
[#19430](https://github.com/apache/pulsar/pull/19430)
+- Make authentication refresh threadsafe 
[#19506](https://github.com/apache/pulsar/pull/19506)
+- OneStageAuth State: move authn out of constructor 
[#19295](https://github.com/apache/pulsar/pull/19295)
+- Allow proxy to pass same role for authRole and originalRole 
[#19557](https://github.com/apache/pulsar/pull/19557)
+- Copy command fields and fix potential thread-safety in ServerCnx 
[#19517](https://github.com/apache/pulsar/pull/19517)
+- Topic load fail by ledger lost 
[#19444](https://github.com/apache/pulsar/pull/19444)
+- Incorrect service name selection logic 
[#19505](https://github.com/apache/pulsar/pull/19505)
+- Make the service name resolver cache of PulsarWebResource expire after 
access [#19532](https://github.com/apache/pulsar/pull/19532)
+- Simplify enabling Broker, WS Proxy hostname verification 
[#19674](https://github.com/apache/pulsar/pull/19674)
+- Improve tls config on replication client and cluster cli 
[#19588](https://github.com/apache/pulsar/pull/19588)
+- Fix geo-replication admin 
[#19686](https://github.com/apache/pulsar/pull/19686)
+- Filter system topic when getting topic list by binary proto 
[#19667](https://github.com/apache/pulsar/pull/19667)
+- Fixed history load not releasing 
[#19560](https://github.com/apache/pulsar/pull/19560)
+- Fix loadbalance score caculation problem 
[#19420](https://github.com/apache/pulsar/pull/19420)
+- Use shrink map for trackerCache 
[#19534](https://github.com/apache/pulsar/pull/19534)
+- Fix individual ack batch message with transaction abort redevlier duplicate 
messages [#14327](https://github.com/apache/pulsar/pull/14327)
+- Fix receive duplicated messages due to pendingAcks in PendingAckHandle 
[#19581](https://github.com/apache/pulsar/pull/19581)
+- Fail to update partition meta of topic due to ConflictException: 
subscription already exists for topic 
[#17251](https://github.com/apache/pulsar/pull/17251)
+- Fix catching ConflictException when update topic partition 
[#17374](https://github.com/apache/pulsar/pull/17374)
+- Only create extended partitions when updating partition number 
[#17349](https://github.com/apache/pulsar/pull/17349)
+- Create replicated subscriptions for new partitions when needed 
[#18659](https://github.com/apache/pulsar/pull/18659)
+- Fix race condition while updating partition number 
[#19199](https://github.com/apache/pulsar/pull/19199)
+- Topic close failure leaves subscription in a permanent fence state 
[#19692](https://github.com/apache/pulsar/pull/19692)
+- Fix potential exception cause the policy service init fail 
[#19746](https://github.com/apache/pulsar/pull/19746)
+- Allow version to start positive and grow by more than one 
[#19503](https://github.com/apache/pulsar/pull/19503)
+- Fix deadlock causes session notification not to work 
[#19754](https://github.com/apache/pulsar/pull/19754)
+- Fix issue where msgRateExpired may not refresh forever 
[#19759](https://github.com/apache/pulsar/pull/19759)
+- Delete topic failed if disabled system topic 
[#19735](https://github.com/apache/pulsar/pull/19735)
+- Fix index generator is not rollback after entries are failed added 
[#19727](https://github.com/apache/pulsar/pull/19727)
+- Store the original authentication data 
[#19519](https://github.com/apache/pulsar/pull/19519)
+- Copy subscription properties during updating the topic partition number 
[#19800](https://github.com/apache/pulsar/pull/19800)
+- Fix close borrowed executor 
[#19761](https://github.com/apache/pulsar/pull/19761)
+- Fixed race condition between ResourceLock update and invalidation 
[#19817](https://github.com/apache/pulsar/pull/19817)
+- Counter of pending send messages in Replicator incorrect if schema future 
not complete [#19242](https://github.com/apache/pulsar/pull/19242)
+- Add getState in transaction for client API 
[#19834](https://github.com/apache/pulsar/pull/19834)
+- Follow up #19230 to tighten the validation scope 
[#19234](https://github.com/apache/pulsar/pull/19234)
+- Authorize originalPrincipal when provided 
[#19830](https://github.com/apache/pulsar/pull/19830)
+- Follow up #19817, Fix race condition between ResourceLock update and 
invalidation [#19859](https://github.com/apache/pulsar/pull/19859)
+- Fix delete system topic clean topic policy 
[#19835](https://github.com/apache/pulsar/pull/19835)
+- Fix NPE when update topic policy 
[#19875](https://github.com/apache/pulsar/pull/19875)
+- Make the result of delete cursor is success if cursor is deleted 
[#19825](https://github.com/apache/pulsar/pull/19825)
+- Only validate superuser access if authz enabled 
[#19989](https://github.com/apache/pulsar/pull/19989)
+- Cleanup how superusers abort txns 
[#19976](https://github.com/apache/pulsar/pull/19976)
+- Return if AbstractDispatcherSingleActiveConsumer closed 
[#19934](https://github.com/apache/pulsar/pull/19934)
+- Use AuthenticationParameters for rest producer 
[#20046](https://github.com/apache/pulsar/pull/20046)
+- Fix uncompleted future when remove cursor 
[#20050](https://github.com/apache/pulsar/pull/20050)
+- Fix estimateBacklogFromPosition if position is greater than the greatest 
ledgerId [#20069](https://github.com/apache/pulsar/pull/20069)
+
+### Clients
+- [Java] Fix reader listener can't auto ack with pooled message 
[#19354](https://github.com/apache/pulsar/pull/19354)
+- [Java] Prevent DNS reverse lookup when physical address is an IP address 
[#19028](https://github.com/apache/pulsar/pull/19028)
+- [Java] Set fields earlier for correct ClientCnx initialization 
[#19327](https://github.com/apache/pulsar/pull/19327)
+- [Java] Improve docs and code quality about KeyValueSchema usages 
[#17256](https://github.com/apache/pulsar/pull/17256)
+- [Java] Add init capacity for messages in BatchMessageContainerImpl 
[#17822](https://github.com/apache/pulsar/pull/17822)
+- [Java] Support MAX_ACK_GROUP_SIZE configurable 
[#18107](https://github.com/apache/pulsar/pull/18107)
+- [Java] Fix exception when calling loadConf on a ConsumerBuilder that has a 
KeySharedPolicy [#18345](https://github.com/apache/pulsar/pull/18345)
+- [Java] Support LocalDateTime Conversion 
[#18334](https://github.com/apache/pulsar/pull/18334)
+- [Java] Fix pendingLookupRequestSemaphore leak 
[#18219](https://github.com/apache/pulsar/pull/18219)
+- [Java] Unify the acknowledge process for batch and non-batch message IDs 
[#17833](https://github.com/apache/pulsar/pull/17833)
+- [Java] Set authentication when using loadConf in client and admin client 
[#18358](https://github.com/apache/pulsar/pull/18358)
+- [Java] Fixes batch_size not checked in MessageId#fromByteArrayWithTopic 
[#18405](https://github.com/apache/pulsar/pull/18405)
+- [Java] Fix possible npe [#18406](https://github.com/apache/pulsar/pull/18406)
+- [Java] Change the get lastMessageId to debug level 
[#18421](https://github.com/apache/pulsar/pull/18421)
+- [Java] Fix failover/exclusive consumer with batch cumulate ack issue 
[#18454](https://github.com/apache/pulsar/pull/18454)
+- [Java] Avoid redelivering duplicated messages when batching is enabled 
[#18486](https://github.com/apache/pulsar/pull/18486)
+- [Java] For exclusive subscriptions, if two consumers are created repeatedly, 
the second consumer will block 
[#18633](https://github.com/apache/pulsar/pull/18633)
+- [Java] Fix the Windows absolute path not recognized in auth param string 
[#18403](https://github.com/apache/pulsar/pull/18403)
+- [Java] Broker address resolution wrong if connect through a multi-dns names 
proxy [#19597](https://github.com/apache/pulsar/pull/19597)
+- [Java] Fix memory leak if enabled pooled messages 
[#19585](https://github.com/apache/pulsar/pull/19585)
+- [Java] Fix authentication not update after changing the serviceUrl 
[#19510](https://github.com/apache/pulsar/pull/19510)
+- [Java] Fix async completion in ConsumerImpl#processPossibleToDLQ 
[#19392](https://github.com/apache/pulsar/pull/19392)
+- [Java] Moving get sequenceId into the sync code segment 
[#19837](https://github.com/apache/pulsar/pull/19837)
+- [Java] Fix DeadLetterProducer creation callback blocking client io thread 
[#19930](https://github.com/apache/pulsar/pull/19930)
+
+### Pulsar IO and Pulsar Functions
+- [Functions] Ensure prometheus metrics are grouped by type 
[#15558](https://github.com/apache/pulsar/pull/15558)
+- [Functions] Fix k8s merge runtime opts bug 
[#19481](https://github.com/apache/pulsar/pull/19481)
+- [Functions] Use AuthorizationServer more in Function Worker API 
[#19975](https://github.com/apache/pulsar/pull/19975)
+- [IO Connector] Debezium sources: Support loading config from secrets 
[#19205](https://github.com/apache/pulsar/pull/19205)
+- [IO Connector] Elasticsearch sink: Support loading config from secrets 
[#19206](https://github.com/apache/pulsar/pull/19206)
+- [IO Connector] Update Elasticsearch sink idle cnx timeout to 30s 
[#19377](https://github.com/apache/pulsar/pull/19377)
+- [IO Connector] DBC sink: allow any jdbc driver 
[#17951](https://github.com/apache/pulsar/pull/17951)
+- [IO Connector] ElasticSearch sink: align null fields behaviour 
[#18577](https://github.com/apache/pulsar/pull/18577)
+- [IO Connector] KCA sink: handle null values with KeyValue<Avro,Avro> schema 
[#19861](https://github.com/apache/pulsar/pull/19861)
+- [IO Connector] KCA: option to collapse partitioned topics 
[#19923](https://github.com/apache/pulsar/pull/19923)
+- [IO Connector] KCA: flag to force optional primitive schemas 
[#19951](https://github.com/apache/pulsar/pull/19951)
+-
+
+### Observability
+- [Broker] Fix wrong metrics text generated when label_cluster specified 
[#17704](https://github.com/apache/pulsar/pull/17704)
+- [Broker] Add metrics for transaction 
[#15140](https://github.com/apache/pulsar/pull/15140)
+- [Broker] Remove timestamp from Promtheus metrics 
[#17419](https://github.com/apache/pulsar/pull/17419)

Review Comment:
   fixed



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