v9.0.0-beta.19

What's Changed

New Features 🎉

• feat: compile-time feature-gated Rust backtrace for JNI error diagnostics by @summaryzb in #6365
• feat(python): expose Lance metrics via OpenTelemetry by @wjones127 in #7537
• feat(python): expose MemWAL shard delete by @u70b3 in #7649
• feat: support nested field FTS by @Xuanwo in #7686

Bug Fixes 🐛

• fix(index): cap IVF train prefetch memory for nullable columns by @geserdugarov in #7143
• fix(index): translate address-domain scalar index results to row ids under stable row ids by @charleshuang119 in #7565
• fix(fts): use complete English stop-word list for ICU tokenizer by @LuQQiu in #7621
• fix: relax test_query_delta_indices assertion for approximate index by @XuQianJin-Stars in #7622
• fix(index): describe bitmap-less system indices in describe_indices by @hamersaw in #7667
• fix: avoid creating directory namespace manifest on read by @Xuanwo in #7687
• fix(python): ignore PyTorch 3.14 script_method warning by @Xuanwo in #7689

Performance Improvements 🚀

• perf(index): add exact null-row bitmap to zone map and bloom filter by @westonpace in #7372
• perf: increase default memory pool to 150MB with 40MB sort spill reservation by @westonpace in #7675

Other Changes

• refactor(python): move tensorflow integration out of tree by @Xuanwo in #7685

Full Changelog: v9.0.0-beta.18...v9.0.0-beta.19