Apache Arrow Go 18.6.0 Release

Published 28 Apr 2026
By The Apache Arrow PMC (pmc)

The Apache Arrow team is pleased to announce the v18.6.0 release of Apache Arrow Go. This minor release covers 46 commits from 16 distinct contributors.

Contributors

$ git shortlog -sn v18.5.2..v18.6.0
    25	Matt Topol
     6	Sebastiaan van Stijn
     2	Dima Kuznetsov
     2	Willem Jan
     1	Alex
     1	Alex Normand
     1	Andrei Tserakhau
     1	Ben Bellick
     1	David Li
     1	Harrison Crosse
     1	Karen Li
     1	Lucas Valente
     1	junyan-ling
     1	starpact
     1	wjywbs
     1	wwarner-inf

Highlights

Arrow

Features

  • compute package now has Sorting functions #749
  • Brand new array/arreflect package for round-trip reflection between Arrow and Go types/structs #771

Bug Fixes

  • Route QueryContext for flightsql through active transactions #692
  • Correctly set nullbility for Avro list type #709
  • Fix data race and memory leak in is_in kernel #712
  • Fix cdata handling colons in values #761

Performance Improvements

  • Improved take kernel performance (20-30% gains for 99% of cases) #702
  • Optimize the ARM64 NEON min/max assembly #748

Parquet

Bug Fixes

  • Fixed Decimal256 sign extension #711
  • Strip the repetition_type from the root SchemaElement during serialization #723
  • Normalized the element name in stored ARROW:schema #746

Performance Improvements

  • Avoid double bool bitmap conversion #707
  • Improve zstd pool memory usage (14x less memory!) #717
  • Optimized stats and bloom filters for boolean columns (76% less memory, more than twice as fast) #715
  • Vectorized bool unpack (~4x throughput) #735, #731
  • Eliminated per-value allocation in delta bit-pack decoder (>4x faster decoding) #730

New Contributors

  • @junyan-ling made their first contribution in #689
  • @wjywbs made their first contribution in #692
  • @dimakuz made their first contribution in #711
  • @starpact made their first contribution in #708
  • @laskoviymishka made their first contribution in #712
  • @hcrosse made their first contribution in #723
  • @wwarner-inf made their first contribution in #726
  • @alexandre-normand made their first contribution in #728
  • @benbellick made their first contribution in #754
  • @thaJeztah made their first contribution in #762
  • @kli19 made their first contribution in #757
  • @serramatutu made their first contribution in #758

Full Changelog: https://github.com/apache/arrow-go/compare/v18.5.2...v18.6.0