apache/pulsar v4.0.13

on GitHub

2026-08-03

Library updates

• [fix][sec][branch-4.0] Upgrade Hadoop to 3.5.0 (#26195)
• [fix][sec][branch-4.0] Upgrade Jackson version to 2.18.9 (#26187)
• [fix][sec][branch-4.0] Upgrade Netty to 4.1.136.Final (#26170)
• [fix][ci] Upgrade sandboxed-trivy-action to approved sha (#26169)
• [improve][meta] Upgrade Oxia client to 0.8.0 (#25964)
• [improve][meta] Upgrade Oxia client to 0.9.4 (#26193)
• [improve][monitor][branch-4.0] Upgrade OpenTelemetry libraries (#26165)
• [improve][build] Upgrade docker base image Alpine to 3.24 (#26225)
• [improve][build] Upgrade slog to 0.10.0 (#26226)
• [improve][misc] Upgrade Jetty to 12.1.11 (#26233)
• [improve][misc] Upgrade to Alpine 3.23 (#25180)

Broker

• [fix][broker] Check deliverAt before containsMessage in bucket addMessage (#26230)
• [fix][broker] Fix getEstimatedSizeSinceMarkDeletePosition throw IllegalArgumentException (#26184)
• [fix][broker] Fix bucket delayed message index metrics reset on scrape (#26171)
• [fix][broker] Fix delayed message index data loss when trimming overlapping bucket snapshots (#26240)
• [fix][broker] Fix incorrect listener URLs returned by ModularLoadManager lookups (#26245)
• [fix][broker] Fix Key_Shared delivery stall when look-ahead triggers at the end of the topic (#26236)
• [fix][broker] Fix silently dropped acknowledgement failures in PulsarMetadataEventSynchronizer (#26237)
• [fix][broker] Fix TableViewLoadDataStoreImpl close deadlock that stalls broker shutdown (#26243)
• [fix][broker] Prevent completing replicated snapshot before marker publish (#26119)
• [fix][broker] Prevent partition expansion from inheriting delayed-delivery bucket state (#26179)
• [fix][broker] Prevent stale read completions from stranding Failover subscriptions (#26174)
• [fix][broker] Prevent stale service unit callbacks from dropping active lookup and cleanup jobs (#26146)
• [fix][broker] Prevent stale topic unload cleanup from removing active cache entries (#26145)
• [fix][broker] Read subscription properties directly from cursor (#26159)
• [fix][broker] Release entry on GetLastMessageId when parseMessageMetadata throws (#26089)
• [fix][broker] Trigger max read position callback for messages published during transaction buffer recovery (#26234)
• [fix][broker][branch-4.2] Fix admin API HTTP 400 FAIL_ON_TRAILING_TOKENS when a broker interceptor is loaded (#26223)
• [fix][ml] Preserve ledger entries/size when transformLedgerInfo callback completes after a concurrent close (#26228)
• [fix][meta] Complete handleMetadataEvent future exceptionally when the initial get fails (#26199)
• [fix][meta] Fix NPE in shouldIgnoreEvent when MetadataEvent options is null (#26200)
• [fix][meta] Fix RocksdbMetadataStore instanceId not advancing across restarts (#26218)
• [fix][meta] Record get op stats on the correct completion branch in AbstractMetadataStore (#26201)
• [improve][broker] Skip system cursor when check inactive cursor. (#26149)
• [improve][broker][branch-4.0] Trace the asynchronous tasks in logs when loading topics (#26163) (#26224)
• [improve][offload] Support credentials from offload policies for S3 and Aliyun OSS drivers (#26232)

Client

• [fix][client] Fix lookup permit double-release, waiting queue starvation and timeout-response races in ClientCnx (#26143)
• [fix][client] Fix lookup request semaphore not release problem (#25038)
• [fix][client] Fix UnAckedMessageRedeliveryTracker to skip cancelled timeouts (#26043)
• [fix][client] Fix unAckedMessageTracker cleanup on multi-topics batch ack (#26001)
• [fix][client] Preserve null values in pulsar-admin schema output (#26196)
• [fix][client] Sync ackSet in client with broker to stop acked messages reaching the DLQ (#26135)

Pulsar IO and Pulsar Functions

• [fix][fn] Forward source message properties in Python runtime (#26191)
• [fix][fn] Return inputSpecs consumerProperties in function GET info (#26217)

Others

• [improve][misc][branch-4.0] Add CustomLog config for slog
• [fix][metadata] Fix orphaned UR parent nodes not cleaned up with Oxia metadata backend (#26158)
• [fix][misc][branch-4.0] Make log4j pattern compatible with slog which got pulled in by Oxia client upgrade

Tests & CI

• [fix][test] Fix flaky test testCompactionPriority (#26198)
• [improve][ci] Replace trivy-action with sandboxed-trivy-action (#25480)
• [fix][build][branch-4.0] Fix spotbugs failure in OffloadPoliciesImpl
• [fix][ci][branch-4.0] Fix OpenTelemetrySanityTest after Otel library upgrade
• [fix][ci][branch-4.0] Skip testMarkReplicatedDeletesEmptyParentNodes for Etcd

For the complete list, check the full changelog.