v9.0.0-beta.17

What's Changed

New Features 🎉

• feat: add RLE v2 run length widths by @Xuanwo in #7376

Bug Fixes 🐛

• fix(fts): use async send in FTS index builder to prevent thread-pool … by @a-agmon in #7423
• fix: return Arrow JSON from FragmentSession.take by @xloya in #7470
• fix: return Arrow JSON from FileFragment.take by @xloya in #7471
• fix: convert Arrow JSON in merge-insert full-fragment-rewrite fast path by @xloya in #7473
• fix(mem-wal): fence writer on WAL persistence failure by @hamersaw in #7547
• fix(mem_wal): use slice-aware size estimate for memtable flush threshold by @hamersaw in #7563
• fix: respect PQ num_bits for numpy codebooks by @ddupg in #7586
• fix(python): avoid CPU bf16 compile flake by @ddupg in #7587
• fix(fts): split tail-partition merge by the worker memory budget by @BubbleCal in #7601
• fix(goosefs): decouple OpenDAL root from URL path to avoid ObjectStore cache-key collision by @XuQianJin-Stars in #7612
• fix(encoding): select RLE widths by encoded size by @Xuanwo in #7636
• fix(deps): bump crossbeam-epoch to 0.9.20 for RUSTSEC-2026-0204 by @wjones127 in #7644

Performance Improvements 🚀

• perf(fts): cache the num_tokens-only DocSet on LazyDocSet by @BubbleCal in #7600

Other Changes

• chore(deps): bump cmov from 0.5.3 to 0.5.4 in /test_data/fri_straddle_pre_6610/datagen by @app/dependabot in #7594

Full Changelog: v9.0.0-beta.16...v9.0.0-beta.17