v2.6.0

What's Changed

• MB-69881: Improved APIs and perf optimizations for vector search by @CascadingRadium in #2270
• MB-27666: Hierarchy Search by @CascadingRadium ; see docs/hierarchy.md
• Remove legacy vendor folder by @CascadingRadium in #2271
• Upgrade several dependencies - roaring/v2, mmap-go etc. by @abhinavdangeti in #2275
• MB-59633: Improve performance of Geospatial Search by @CascadingRadium in #2268
• MB-70388: Add forced docvalues for geopoint fields by @Likith101 in #2278
• MB-70410: Simplify CoalesceQueue in hierarchical nested search by @CascadingRadium in #2283
• MB-61890 - Introducing config for zap layer by @Thejas-bhat in #2066
• Handle nil multiSearchParams properly for MultiSearch by @capemox in #2286
• MB-59633: Disable DocValues Chunking & Compression for Geo Fields by @Likith101 in #2269
• Improved geo spatial search accuracy by @Likith101 in blevesearch/geo#29 & blevesearch/geo#30
• MB-62985: Support for Binary quantized vector indexes @Likith101 ; see docs/vectors.md
• MB-62182: New merge approach that avoids re-training of vector indexes @Thejas-bhat ; see docs/fast_merge.md
• MB-71041: avoid updating root.bolt with in-memory segment's data by @Thejas-bhat in #2296
• MB-65018 add custom_filter/custom_score query support with context-driven callback hooks by @maneuvertomars in #2289 ; see docs/custom_query.md
• MB-65860: Introducing support for fileIO Callbacks by @Likith101 in #2209
• (perf) pool queryStringLex to reuse bufio.Reader across query parses by @huynhanx03 in #2300
• Fix null issue when parsing search request attributes by @CascadingRadium in #2312
• MB-71375: Bolt Wrappers for File Callbacks by @Likith101 in #2309
• Absorb fixes for filtering vector search, update workflows by @abhinavdangeti in #2314
• MB-59670: GPU-Accelerated Vector Search by @CascadingRadium & @capemox ; see docs/vectors.md
• MB-71383: Expose vector field stats in scorch by @capemox in #2316
• Added check for in-memory segment merge by @Likith101 in #2319
• MB-71607: Fixed data corruption in bolt by @Likith101 in #2324
• Fix metrics involving NestedDocuments by @CascadingRadium in #2325
• MB-71216, MB-71650: Implement fast merge over binary index classes by @Thejas-bhat in #2326
• Upgrade to go-faiss@v1.1.0; Fix formatting, typos, etc. in docs/ by @abhinavdangeti in #2328

Introduced new file format - zapx@v17

Milestone: https://github.com/blevesearch/bleve/milestone/29
Full Changelog: v2.5.7...v2.6.0