5.0.0

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[fix][broker] Prevent backlog quota cursor updates during topic close

Status: Open (in progress).

apache/pulsarnumber 25914

#25914 In apache/pulsar;

· Denovo1998 opened on Jun 1, 2026

[fix][broker]The partitions of the topic was wrongly created even though this cluster was not allowed to access it

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

ready-to-test

release/4.0.14

release/4.1.4

Status: Open (in progress).

apache/pulsarnumber 25443

#25443 In apache/pulsar;

· poorbarcode opened on Mar 31, 2026

PIP-458: Add Async Resource List Filtering API to AuthorizationProvider

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

PIP

release/4.2.5

Status: Draft (not ready).

apache/pulsarnumber 25286

#25286 In apache/pulsar;

· mattisonchao opened on Mar 4, 2026

[improve][broker] Offload web response from metadata thread for list tenants/namespaces/clusters

area/broker

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

release/4.2.5

type/enhancementThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messagesThe enhancements for the existing features or docs. e.g. reduce memory usage of the delayed messages

Status: Open (in progress).

apache/pulsarnumber 25284

#25284 In apache/pulsar;

· mattisonchao opened on Mar 4, 2026

[fix][broker]Resolve the issue where markDeletePosition points to a non-existent location when creating a new subscription

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

Status: Open (in progress).

apache/pulsarnumber 25283

#25283 In apache/pulsar;

· zjxxzjwang opened on Mar 4, 2026

[fix][misc] Fix Backoff mandatory-stop timer tracking

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

release/4.0.14

release/4.1.2

release/4.2.5

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open (in progress).

apache/pulsarnumber 25282

#25282 In apache/pulsar;

· Denovo1998 opened on Mar 4, 2026

[fix][broker] The configuration subscriptionExpirationTimeMinutes does not work if the topic was reloaded frequently

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

release/4.0.14

release/4.1.4

release/4.2.5

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open (in progress).

apache/pulsarnumber 25244

#25244 In apache/pulsar;

· poorbarcode opened on Feb 12, 2026

[pip] PIP-455: Support Namespace Bundle Lookup and Topic Preloading

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

PIP

Status: Open (in progress).

apache/pulsarnumber 25242

#25242 In apache/pulsar;

· zhaizhibo opened on Feb 12, 2026

[fix][meta] Fix race condition in ZooKeeper session reconnection leading to SESSIONEXPIRED Errors

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

ready-to-test

Status: Open (in progress).

apache/pulsarnumber 25237

#25237 In apache/pulsar;

· zhaizhibo opened on Feb 10, 2026

[fix][broker]Fixed an issue where the entire subscription would be blocked when a chunk message with an ID of zero did not exist.

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

ready-to-test

release/3.0.18

release/4.0.14

release/4.1.4

release/4.2.5

Status: Open (in progress).

apache/pulsarnumber 25120

#25120 In apache/pulsar;

· zjxxzjwang opened on Dec 30, 2025

[fix][broker] Move newPosition to nextValidLedger:-1 to avoid cursor position and ledger inconsistency in ManagedCursorImpl

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

ready-to-test

Status: Open (in progress).

apache/pulsarnumber 25117

#25117 In apache/pulsar;

· oneby-wang opened on Dec 28, 2025

[improve][pip] PIP-449: Improve metadata sync to have exclusions in syncing specific config matching regex pattern across onprem and cloud clusters

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

PIP

Status: Open (in progress).

apache/pulsarnumber 25035

#25035 In apache/pulsar;

· vraulji567 opened on Dec 3, 2025

[fix][test] Fix flaky EndToEndMetadataTest.testPublishConsume

area/test

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

ready-to-test

release/4.2.5

Status: Open (in progress).

apache/pulsarnumber 25002

#25002 In apache/pulsar;

· hanmz opened on Nov 20, 2025

[fix][client] Fix retry logic for BinaryProtoLookupService.getTopicsUnderNamespace method

area/client

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

ready-to-test

type/bugThe PR fixed a bug or issue reported a bugThe PR fixed a bug or issue reported a bug

Status: Open (in progress).

apache/pulsarnumber 24974

#24974 In apache/pulsar;

· lhotari opened on Nov 11, 2025

[fix][sec] Update reactor-netty-http in Azure Data Explorer connector to remediate CVE-2025-22227

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

ready-to-test

release/3.0.18

release/3.3.10

release/4.0.14

release/4.1.4

release/4.2.5

Status: Open (in progress).

apache/pulsarnumber 24959

#24959 In apache/pulsar;

· guptas6est opened on Nov 7, 2025

[feat][pip] PIP-448: Topic-level Delayed Message Tracker for Memory Optimization

doc-not-neededYour PR changes do not impact docsYour PR changes do not impact docs

PIP

Status: Open (in progress).

apache/pulsarnumber 24928

#24928 In apache/pulsar;

· Denovo1998 opened on Nov 1, 2025

[fix][broker]Incorrect source side topic permission deletion when disabling replication

release/4.0.14

release/4.2.5

Status: Open (in progress).

apache/pulsarnumber 26479

#26479 In apache/pulsar;

· poorbarcode opened on Sep 7, 2026

[fix][broker] Clear delayed delivery state before resetting the cursor

Status: Open (in progress).

apache/pulsarnumber 26420

#26420 In apache/pulsar;

· nodece opened on Aug 25, 2026

[fix][broker] Manage in-flight bucket work during clear

Status: Open (in progress).

apache/pulsarnumber 26401

#26401 In apache/pulsar;

· nodece opened on Aug 21, 2026

[improve][monitor] Restore the BookKeeper Prometheus stats provider on the Prometheus Java client 1.x

area/dependencyPull requests that update a dependency filePull requests that update a dependency file

Status: Open (in progress).

apache/pulsarnumber 26360

#26360 In apache/pulsar;

· lhotari opened on Aug 17, 2026

[fix][broker] Fix bucket snapshot trim and segment loading

Status: Draft (not ready).

apache/pulsarnumber 26280

#26280 In apache/pulsar;

· nodece opened on Aug 6, 2026

[improve][broker] improve readability for the class TopicPolicyListenerWrapper

ready-to-test

release/4.0.14

release/4.2.5

Status: Open (in progress).

apache/pulsarnumber 26277

#26277 In apache/pulsar;

· poorbarcode opened on Aug 5, 2026

[fix][broker] Fix readCompacted skipping tombstones within compaction horizon

Status: Open (in progress).

apache/pulsarnumber 26190

#26190 In apache/pulsar;

· grishaf opened on Jul 14, 2026

[fix][broker] Log replicated subscription update ack failures

release/4.0.14

release/4.2.5

Status: Open (in progress).

apache/pulsarnumber 26109

#26109 In apache/pulsar;

· Denovo1998 opened on Jun 29, 2026

[fix][broker] Handle synchronous schema lookup failures in replication

release/4.0.14

release/4.2.5

Status: Open (in progress).

apache/pulsarnumber 26108

#26108 In apache/pulsar;

· Denovo1998 opened on Jun 29, 2026