Planned Breaking Changes for 2.0

[brijos]

Is your feature request related to a problem? Please describe

This issue is being used to track and increase transparency around the breaking changes planned for the 2.0 release. The goal is to help the community get a preview of the breaking changes ahead of time so that migration details can be accounted for. Feedback on the process is welcomed.

Describe the solution you'd like

Each repo who plans to release breaking changes in 2.0 needs to link to this issue. This issue will be posted on the public roadmap for the community to see and provide feedback on. Contributors will do their best to highlight breaking changes early on in the process. Community members are encouraged to add feedback to the proposed breaking changes to improve the product offering.

Describe alternatives you've considered

We will be testing this process out and will learn as we go.

Additional context

No response

[saratvemulapalli]

Here is a meta issue for breaking changes in OpenSearch (core).
opensearch-project/OpenSearch#2480

[cliu123]

Security plugin breaking changes(PR):
Security plugin will drop the rolling upgrade support ODFE -> OpenSearch 1.2.0, but will still support the upgrade patch ODFE 1.13 -> OpenSearch 1.x -> OpenSearch 2.0.0

[seanneumann]

Dashboards issue tracking breaking changes for plugins... [2.0] Dashboards Plugin Errors #1206

Release note also cover breaking items for Dashboards

[martin-gaievski]

no breaking changes for k-NN plugin

[jackiehanyang]

ml-commons and PPL integration has a breaking change.

• A Kmeans command like this works in 1.3 but doesn't work in 2.0 { "query": "source=xxx | fields xxx | kmeans 2"}.
• Vice versa, a Kmeans command like this works in 2.0 but doesn't work in 1.3 { "query": "source=xxx | fields xxx | kmeans centroids=2"}

Please see more details in Support more orderless parameters for KEMANS and AD commands

[vamsi-amazon]

sql, observability and reporting plugins have no breaking changes planned for this release.

[ankitkala]

No breaking change for cross-cluster-replication

[bbarani]

Closing this issue as we have released OpenSearch 2.0 version. Feel free to re-open if needed.