Hi everyone,

Please review and vote on Apache Paimon Vector Index 0.5.0,
release candidate 2.

Compared with RC1, this candidate upgrades crossbeam-epoch from 0.9.18
to 0.9.20 to fix RUSTSEC-2026-0204 and refreshes the four Rust dependency
inventories. There are no other source changes.

[ ] +1 Approve
[ ]  0 No opinion
[ ] -1 Do not approve (please explain)

Source candidate (the artifact being voted on):
https://dist.apache.org/repos/dist/dev/paimon/paimon-vector-index-0.5.0-rc2/

Git tag:
https://github.com/apache/paimon-vector-index/releases/tag/v0.5.0-rc2

Commit:
31d6b1a1b7b7819a2192ecda634e9fd83b03459c

KEYS:
https://downloads.apache.org/paimon/KEYS

Signing key fingerprint:
9704CBEADA409B70AA17C5F40CB1DED081489A3C

Java convenience artifacts (closed staging repository):
https://repository.apache.org/content/repositories/orgapachepaimon-1203/

Python convenience artifacts:
https://test.pypi.org/project/paimon-vindex/0.5.0rc2/

Verification guide:
https://github.com/apache/paimon-vector-index/blob/v0.5.0-rc2/docs/verifying-a-release-candidate.html

Release build:
https://github.com/apache/paimon-vector-index/actions/runs/34924813326

The vote will remain open for at least 72 hours.

Thanks to everyone who reviews and votes.

Best,
Jerry

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