Hi Thomas,

One of the main challenges we’re facing is coordinating the
end-of-support timeline for ES7, while still allowing sufficient time
for migration—especially before it becomes impossible to launch new
ES7 environments (notably on Elastic Cloud).

The split proposed in Serge’s email is intended to mitigate risks
related to timing, particularly regarding the completion and
validation of the changes he listed. We believe this publication
schedule represents a balanced compromise, enabling us to avoid
rushing new features and giving everyone more time to review and test
them prior to release.

P.S. Apologies for the delay in distributing the minutes from last
week’s meeting. I hope to share them by the end of the day.

On Tue, Aug 19, 2025 at 8:22 AM Thomas Sigdestad <t...@enonic.com.invalid> 
wrote:
>
> Hi Serge, and thanks for the detailed proposal.
>
> As long as the 3.0 and 3.1 releases will come so close - would it not be
> easier for everyone to make a single feature rich 3.0 release in october?
>
> Regards
> Thomas Sigdestad
>
> man. 18. aug. 2025 kl. 18:31 skrev Serge Huber <bhil...@gmail.com>:
>
> > Hi everyone,
> >
> > I want to share a proposed roadmap for the next Apache Unomi releases
> > and open it for discussion. The goal is to clarify the sequencing of
> > maintenance, compatibility, and feature releases, and to align on
> > versioning decisions.
> >
> > ==================================================
> > Apache Unomi 2.7.0
> > ==================================================
> >
> > Next maintenance release on the 2.x line.
> >
> > Content:
> >
> > - UNOMI-897: Groovy actions performance fix
> > https://issues.apache.org/jira/browse/UNOMI-897
> >
> > - UNOMI-886: Consider profileId from event collector request
> > https://issues.apache.org/jira/browse/UNOMI-886
> >
> > - UNOMI-885: Fix migration error on rollover alias
> > https://issues.apache.org/jira/browse/UNOMI-885
> >
> > Why 2.7.0 instead of 2.6.2?
> >
> > Some adopters already published internal builds labeled 2.6.2. To
> > avoid versioning conflicts, we are skipping 2.6.2 and moving to 2.7.0.
> >
> > Timeline: ASAP (release candidate to be prepared immediately)
> >
> > ==================================================
> > Apache Unomi 3.0.0 (Compatibility Release)
> > ==================================================
> >
> > This release is focused on runtime and platform compatibility.
> >
> > Content:
> >
> > - Support for ElasticSearch 9 (ES 7 goes EOL end of 2025)
> >
> > - Support for Apache Karaf 4.4.8
> >
> > Drop support for JDK 8 and JDK 11; require JDK 17 (needed by the ES 9
> > Java client)
> >
> >
> > Why a major release?
> >
> > Even though feature scope is narrow, dropping older JDKs is a breaking
> > change, which justifies the bump to 3.0.0.
> >
> >
> > Risks:
> >
> > Some users may face JDK migration hurdles.
> >
> > Delays could leave users with little time to move before ES 7 EOL.
> >
> >
> > Timeline: Early to late September 2025
> >
> >
> > ==================================================
> > Apache Unomi 3.1 (or 4.0.0) - Major Feature Expansion
> > ==================================================
> >
> > This release delivers the features from UNOMI-875 plus new support for
> > OpenSearch and Explain/Tracing.
> >
> >
> > Planned features:
> >
> > - Multi-tenancy: UNOMI-139, UNOMI-880
> > https://issues.apache.org/jira/browse/UNOMI-139
> > https://issues.apache.org/jira/browse/UNOMI-880
> >
> > - Cluster-aware task scheduling: UNOMI-878
> > https://issues.apache.org/jira/browse/UNOMI-878
> >
> > - Unified condition validation service: UNOMI-883
> > https://issues.apache.org/jira/browse/UNOMI-883
> >
> > - Unified CRUD shell commands: UNOMI-879
> > https://issues.apache.org/jira/browse/UNOMI-879
> >
> > - New unit testing framework: UNOMI-881
> > https://issues.apache.org/jira/browse/UNOMI-881
> >
> > - Enhanced documentation and diagrams: UNOMI-882
> > https://issues.apache.org/jira/browse/UNOMI-882
> >
> > - Migration scripts for V3: UNOMI-884
> > https://issues.apache.org/jira/browse/UNOMI-884
> >
> > - OpenSearch support: UNOMI-828
> > https://issues.apache.org/jira/browse/UNOMI-828
> >
> > - Explain / Tracing support: UNOMI-873
> > https://issues.apache.org/jira/browse/UNOMI-873
> >
> > - V2 compatibility adjustments: UNOMI-904
> > https://issues.apache.org/jira/browse/UNOMI-904
> >
> > Current status:
> > - Feature complete
> > - Passes integration tests
> >
> > Still needs:
> > - V2 compatibility work (UNOMI-904)
> > - Review and PR splitting (currently all changes are bundled in one branch)
> >
> > Timeline: Early to late October 2025, to align with known production
> > rollouts
> >
> > ==================================================
> > Versioning discussion (3.1 vs 4.0)
> > ==================================================
> >
> > Current plan is to release this as 3.1.0 because:
> > - APIs remain compatible with V2 when compatibility mode is enabled
> > - A minor increment matches semantic versioning and lowers migration
> > resistance
> > - Avoids two major releases in a row (3.0 then 4.0), which could
> > create upgrade fatigue
> >
> > Calling it 4.0.0 could provide more “marketing splash”, but would
> > overstate breaking changes since compatibility mode keeps APIs
> > aligned.
> >
> > ==================================================
> > Summary Roadmap
> > ==================================================
> >
> > 2.7.0 (ASAP)
> > - Maintenance fixes: UNOMI-897, UNOMI-886, UNOMI-885
> > - Skips 2.6.2 due to internal use
> >
> > 3.0.0 (early to late September 2025)
> > - ElasticSearch 9 support
> > - Karaf 4.4.8 support
> > - Drop JDK 8/11, require JDK 17
> >
> > 3.1.0 / 4.0.0 (early to late October 2025)
> > - Multi-tenancy: UNOMI-139, UNOMI-880
> > - Cluster-aware scheduler: UNOMI-878
> > - Condition validation: UNOMI-883
> > - CRUD shell commands: UNOMI-879
> > - Unit testing framework: UNOMI-881
> > - Documentation improvements: UNOMI-882
> > - Migration scripts: UNOMI-884
> > - OpenSearch support: UNOMI-828
> > - Explain/Tracing support: UNOMI-873
> > - V2 compatibility adjustments: UNOMI-904
> >
> > ==================================================
> > Next steps
> > ==================================================
> >
> > 1. Prepare and stage the 2.7.0 release candidate immediately
> > 2. Finalize 3.0.0 in September for ES 9 and JDK 17 migration path
> > 3. Structure and review the 3.1/4.0 branch, split into feature PRs,
> > and complete UNOMI-904
> >
> > Looking forward to your feedback on this proposed roadmap, especially
> > around the 3.1 vs 4.0 naming decision and review priorities.
> >
> > Best regards,
> >    Serge Huber
> >    Apache Unomi PMC Chair
> >

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