SOLR-18190: Index upgrade Collection level API#4245
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rahulgoswami wants to merge 6 commits intoapache:mainfrom
Draft
SOLR-18190: Index upgrade Collection level API#4245rahulgoswami wants to merge 6 commits intoapache:mainfrom
rahulgoswami wants to merge 6 commits intoapache:mainfrom
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… level upgrade calls
… interval to 30 seconds
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https://issues.apache.org/jira/browse/SOLR-18190
Description
A new Collections API (UPGRADECOLLECTIONINDEX) to upgrade an older index to the current underlying Lucene version. This is to facilitate upgrading to a future Solr version without needing to recreate the index from source.
Solution
Detailed design available in the JIRA
AI agent disclosure: Design is mine. Coding heavily assisted by Claude Code and Codex with regular intermittent manual reviews and corrections. Will give a final manual pass before opening the PR for review.