Elasticsearch 8.19
Current patch release: 8.19.18
End of life in 369 days (July 15, 2027). Plan your upgrade now.
July 23, 2025
Ongoing
July 15, 2027
8.19.18 (June 26, 2026)
About Elasticsearch 8.19
Elasticsearch 8.19 introduced native vector search, improved security defaults (HTTPS and authentication enabled by default), and the new Elasticsearch Relevance Engine for AI/ML.
Key Changes in Elasticsearch 8.19
- ●Native vector search with kNN (k-nearest neighbor) for semantic search and AI applications
- ●Security enabled by default: TLS and basic authentication out of the box
- ●Elasticsearch Relevance Engine (ESRE) for combining BM25 with vector search
- ●Improved indexing performance (up to 20% faster)
- ●Fleet and Elastic Agent integration for simplified data collection
Breaking Changes
- ▲Security enabled by default (breaking for scripts that connected without auth)
- ▲High-level REST client deprecated in favor of new Java client
- ▲Several deprecated APIs removed
Elasticsearch 8.19 is currently under active support, released on July 23, 2025. It receives regular bug fixes, security patches, and may still get minor feature additions. The latest patch release is 8.19.18 (June 26, 2026).
Lifecycle Progress
49% through its lifecycle. 369 days remaining.
All Elasticsearch Versions
| Version | Released | EOL | Latest | Status |
|---|---|---|---|---|
| 9.4 | May 5, 2026 | TBD | 9.4.3 | Active |
| 9.3 | February 3, 2026 | May 26, 2026 | 9.3.7 | End of Life |
| 9.2 | October 21, 2025 | May 5, 2026 | 9.2.8 | End of Life |
| 9.1 | July 23, 2025 | February 3, 2026 | 9.1.10 | End of Life |
| 8.19 (current page) | July 23, 2025 | July 15, 2027 | 8.19.18 | Active |
| 8.18 | April 10, 2025 | October 21, 2025 | 8.18.8 | End of Life |
| 9.0 | April 8, 2025 | October 2, 2025 | 9.0.8 | End of Life |
| 8.17 | December 11, 2024 | August 5, 2025 | 8.17.10 | End of Life |
| 8.16 | November 8, 2024 | April 15, 2025 | 8.16.6 | End of Life |
| 7 | April 10, 2019 | January 15, 2026 | 7.17.29 | End of Life |
| 6 | November 14, 2017 | February 10, 2022 | 6.8.23 | End of Life |
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