5.1.0

Issues

• [improve][pip] PIP-495: Scalable Topic Geo-Replication

  PIP
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  apache/pulsar#26692·merlimat opened Sep 22, 2026 · Updated Oct 7, 2026
  10

• [improve][ml] Optimize read entries with skipCondition

  area/MLcategory/performancedoc-not-neededready-to-testtriage/lhotari/important
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  apache/pulsar#22560·dao-jun opened Apr 23, 2024 · Updated Oct 20, 2026
  35

  

• [fix][compaction] Size rebatch buffers from uncompressed batches

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  apache/pulsar#26732·Asthenia0412 opened Sep 28, 2026 · Updated Oct 25, 2026
  1

• [improve][broker] broker-stats for a given broker from broker-list

  release/5.0.2
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  apache/pulsar#26997·programmerahul opened Oct 19, 2026 · Updated Oct 26, 2026
  27

  

• [fix][schema] Exclude deleted schema versions from recovery results

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  apache/pulsar#27002·Denovo1998 opened Oct 19, 2026 · Updated Oct 21, 2026
  1

  

• [improve][broker] Recover incompatible replication schemas on metadata changes

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2
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  apache/pulsar#27033·poorbarcode opened Oct 21, 2026 · Updated Oct 27, 2026
  43

  

• [improve][test] Add durable broker and bookie process-failure tests

  area/testready-to-test
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  apache/pulsar#27042·codelipenghui opened Oct 21, 2026 · Updated Oct 30, 2026
  3

  

• [Enhancement] Migrate from simpleclient to Prometheus Java client 1.x (tracking)

  type/enhancement
  apache/pulsar#27045 · Filter by author lhotari opened on Oct 22, 2026 · 5.1.0

• [fix][admin] Return null for an unset namespace resource group and anti-affinity group

  area/adminarea/brokerdoc-not-neededready-to-testtype/bug
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  apache/pulsar#22008·nodece opened Jan 31, 2024 · Updated Oct 25, 2026
  11

  

• [improve][broker] Track in-progress request frame memory

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2
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  apache/pulsar#27110·poorbarcode opened Oct 25, 2026 · Updated Nov 2, 2026
  26

  

• [fix][client] Discard only the undecodable tail of a batch and give back the permits the broker charged for it

  doc-not-neededready-to-test
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  apache/pulsar#25386·gosonzhang opened Mar 23, 2026 · Updated Oct 27, 2026
  36

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

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  apache/pulsar#25914·Denovo1998 opened Jun 1, 2026 · Updated Oct 26, 2026
  9

• [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 Oct 26, 2026
  27

  

• [improve][broker] Remove the inbound FlowControlHandler queue

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2
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  apache/pulsar#27126·poorbarcode opened Oct 26, 2026 · Updated Oct 28, 2026
  2

  

• [fix][client] Keep retrying transient topic watcher creation failures

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27134·codelipenghui opened Oct 27, 2026 · Updated Oct 31, 2026
  1

  

• [fix][client] Recover pattern subscriptions after initial child failures

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27135·codelipenghui opened Oct 27, 2026 · Updated Oct 31, 2026
  3

  

• [fix][broker] Serialize topic metadata deletion with in-flight loading

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27136·codelipenghui opened Oct 27, 2026 · Updated Oct 31, 2026
  2

  

• [fix][broker] Wait for topic cache removal before completing deletion

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27137·codelipenghui opened Oct 27, 2026 · Updated Oct 31, 2026
  5

  

• [fix][fn] Log from close() when the function instance process is stopped

  Unread
  apache/pulsar#27099·sakshichitnis27 opened Oct 25, 2026 · Updated Oct 28, 2026
  

• [fix][broker] Retry applying received subscription updates

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27158·codelipenghui opened Oct 28, 2026 · Updated Nov 2, 2026
  4

  

• [fix][txn] Retry participant lookup metadata failures

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27224·codelipenghui opened Oct 29, 2026 · Updated Oct 31, 2026
  

• [fix][broker] Fail topic policy reads after the service closes

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27225·codelipenghui opened Oct 29, 2026 · Updated Oct 31, 2026
  

• [fix][txn] Retry failed transaction buffer snapshots on idle topics

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27221·codelipenghui opened Oct 29, 2026 · Updated Oct 31, 2026
  

• [fix][ml] Read published positions through stale read-only caches

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27223·codelipenghui opened Oct 29, 2026 · Updated Oct 31, 2026
  

• [fix][ml] Initialize read-only ledger frontiers before publication

  ready-to-testrelease/4.0.15release/4.2.6release/5.0.2type/bug
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  apache/pulsar#27220·codelipenghui opened Oct 29, 2026 · Updated Oct 31, 2026