5.0.0

Issues

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

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  apache/pulsar#25914·Denovo1998 opened Jun 1, 2026 · Updated Sep 12, 2026
  6

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

  doc-not-neededready-to-testrelease/4.0.14release/4.1.4
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  apache/pulsar#25443·poorbarcode opened Mar 31, 2026 · Updated Sep 12, 2026
  15

  

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

  doc-not-neededPIPrelease/4.2.5
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  apache/pulsar#25286·mattisonchao opened Mar 4, 2026 · Updated Sep 12, 2026·Draft
  3

  

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

  area/brokerdoc-not-neededrelease/4.2.5type/enhancement
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  apache/pulsar#25284·mattisonchao opened Mar 4, 2026 · Updated Sep 12, 2026
  5

  

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

  doc-not-needed
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  apache/pulsar#25283·zjxxzjwang opened Mar 4, 2026 · Updated Sep 12, 2026
  4

  

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

  doc-not-neededrelease/4.0.14release/4.1.2release/4.2.5type/bug
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  apache/pulsar#25282·Denovo1998 opened Mar 4, 2026 · Updated Sep 12, 2026
  4

  

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

  doc-not-neededrelease/4.0.14release/4.1.4release/4.2.5type/bug
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  apache/pulsar#25244·poorbarcode opened Feb 12, 2026 · Updated Sep 12, 2026
  5

  

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

  doc-not-neededPIP
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  apache/pulsar#25242·zhaizhibo opened Feb 12, 2026 · Updated Sep 12, 2026
  6

  

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

  doc-not-neededready-to-test
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  apache/pulsar#25237·zhaizhibo opened Feb 10, 2026 · Updated Sep 12, 2026
  4

• [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-neededready-to-testrelease/3.0.18release/4.0.14release/4.1.4release/4.2.5
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  apache/pulsar#25120·zjxxzjwang opened Dec 30, 2025 · Updated Sep 12, 2026
  19

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

  doc-not-neededready-to-test
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  apache/pulsar#25117·oneby-wang opened Dec 28, 2025 · Updated Sep 12, 2026
  22

  

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

  doc-not-neededPIP
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  apache/pulsar#25035·vraulji567 opened Dec 3, 2025 · Updated Sep 12, 2026
  5

  

• [fix][test] Fix flaky EndToEndMetadataTest.testPublishConsume

  area/testdoc-not-neededready-to-testrelease/4.2.5
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  apache/pulsar#25002·hanmz opened Nov 20, 2025 · Updated Sep 12, 2026
  1

  

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

  area/clientdoc-not-neededready-to-testtype/bug
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  apache/pulsar#24974·lhotari opened Nov 11, 2025 · Updated Sep 12, 2026
  3

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

  doc-not-neededready-to-testrelease/3.0.18release/3.3.10release/4.0.14release/4.1.4release/4.2.5
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  apache/pulsar#24959·guptas6est opened Nov 7, 2025 · Updated Sep 12, 2026
  4

  

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

  doc-not-neededPIP
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  apache/pulsar#24928·Denovo1998 opened Nov 1, 2025 · Updated Sep 12, 2026
  11

  

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

  release/4.0.14release/4.2.5
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  apache/pulsar#26479·poorbarcode opened Sep 7, 2026 · Updated Sep 12, 2026
  1

  

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

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  apache/pulsar#26420·nodece opened Aug 25, 2026 · Updated Sep 12, 2026
  9

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

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  apache/pulsar#26401·nodece opened Aug 21, 2026 · Updated Sep 12, 2026
  16

  

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

  area/dependency
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  apache/pulsar#26360·lhotari opened Aug 17, 2026 · Updated Sep 12, 2026
  1

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

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  apache/pulsar#26280·nodece opened Aug 6, 2026 · Updated Sep 12, 2026·Draft
  23

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

  ready-to-testrelease/4.0.14release/4.2.5
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  apache/pulsar#26277·poorbarcode opened Aug 5, 2026 · Updated Sep 12, 2026
  17

  

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

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  apache/pulsar#26190·grishaf opened Jul 14, 2026 · Updated Sep 12, 2026
  4

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

  release/4.0.14release/4.2.5
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  apache/pulsar#26109·Denovo1998 opened Jun 29, 2026 · Updated Sep 12, 2026
  2

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

  release/4.0.14release/4.2.5
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  apache/pulsar#26108·Denovo1998 opened Jun 29, 2026 · Updated Sep 12, 2026
  19