Added

• #8366 Store: optionally ignore Parquet migrated blocks
• #8359 Tools: add --shipper.upload-compacted flag for uploading compacted blocks to bucket upload-blocks
• #8484 Query: add /api/v1/status/tsdb API endpoint.
• #8454 Compact: ensure we don't mark blocks for deletion again after just deleting them
• #8410 Compact: ignore blocks with deletion mark in partial deletes

Changed

• #8370 Query: announced labelset now reflects relabel-config
• #8464 Query: assume that we do not unmark a block for deletion. This solves a race between Thanos Store and Compactor.
• #8402 Query/Receive: trim labelsets in String()
• #8334 Query: wait for initial endpoint discovery before becoming ready
• #8401 block/compact: rework consistency check, make writers only write
• #8389 block: bust cache if modified timestamp differs

New Contributors

• @paul-hsieh made their first contribution in https://github.com/thanos-io/thanos/pull/8321
• @jdgeisler made their first contribution in https://github.com/thanos-io/thanos/pull/8359
• @NickGoog made their first contribution in https://github.com/thanos-io/thanos/pull/8400
• @erikgb made their first contribution in https://github.com/thanos-io/thanos/pull/8427
• @parthivrmenon made their first contribution in https://github.com/thanos-io/thanos/pull/8456
• @dbuchanaRH made their first contribution in https://github.com/thanos-io/thanos/pull/8486

Full Changelog: https://github.com/thanos-io/thanos/compare/v0.39.2...v0.40.0-rc.0