SOLR-18190: Index upgrade Collection level API#4245

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rahulgoswami wants to merge 6 commits intoapache:mainfrom

Commvault:index-upgrade-collections-api

Commits on Mar 26, 2026

CoreAdmin UPGRDECOREINDEX API changes to make it ready for collection level upgrade calls
rahulgoswami
committed
New Collections API command - UPGRADECOLLECTIONINDEX
rahulgoswami
committed
Add core-level validation endpoint to ensure all relevant segments have been upgraded
rahulgoswami
committed

Commits on Mar 27, 2026

Wait for TLOG/PULL replica convergence before signaling upgrade completion
rahulgoswami
committed

Commits on Mar 29, 2026

1) Tighten polling logic for replica convergence. 2) Increase polling interval to 30 seconds
rahulgoswami
committed

Commits on Apr 3, 2026

setVersion() on AddUpdateCommand for tlog consistency
rahulgoswami
committed