Ronelle Landy
e6630e5ab6
The prelude provides a high-level overview of the quality improvements, operational enhancements, and enhanced functionality. Assisted-By: claude-code Sonnet 4.5 Change-Id: I64a116601868571679de045369f000ce0c9cf69d Signed-off-by: Ronelle Landy <rlandy@redhat.com>
34 lines
1.7 KiB
YAML
34 lines
1.7 KiB
YAML
---
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prelude: |
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The ``OpenStack 2026.1`` (``Watcher 16.0.0``) release brings significant
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improvements to the execution of strategies, reliability, and testing
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infrastructure. This release focuses on enhancing the robustness of
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action plan management and expanding test coverage for critical migration
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functionality.
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The Applier service now supports experimental native threading mode,
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completing the transition across all three core Watcher services. With API,
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Decision Engine, and Applier all supporting native threading as an
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alternative to Eventlet, this release marks a significant milestone in
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eventlet removal initiative. Native threading remains disabled by default
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and is not recommended for production use.
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The codebase has been modernized through migration from novaclient to
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openstacksdk, aligning with OpenStack's standard client library approach
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and improving long-term maintainability.
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There are updates to supported datasources.
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The Prometheus datasource is deprecated in favor of Aetos.
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Also, the Monasca datasource, that was deprecated in 2025.1, has been
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fully removed from codebase.
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Other key highlights include homogenized action plan cancellation behavior
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across threading and eventlet modes, providing more consistent and
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reliable operation. The release also enables comprehensive zone migration
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testing, improving quality assurance for multi-zone deployments.
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Additionally, critical bug fixes ensure proper migration notification
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handling and enhanced monitoring capabilities with the addition of service
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monitors for the Applier service, making Watcher deployments more
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observable and maintainable.
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