- Added several new features including index‑create block on high disk watermark, cluster‑manager throttling stats, feature‑flag support, segment‑replication cat API, guardrails for max shards, and extensions/translog enhancements
- Updated core libraries and dependencies (Lucene 9.5.0, OpenJDK patches, Netty, Reactor Netty, Jackson, Azure SDKs, etc.) and refactored common utilities
- Fixed bugs such as replication failures, weighted‑shard routing state issues, numeric sort optimisation, and S3 repository token handling
2.6.0
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Added APIs for modifying data stream backing indices, multivalue doc count aggregation, and Hive pull‑based ingestion.