RubyGems
msgpack
MessagePack, a binary-based efficient data interchange format.
msgpack
github.com/msgpack/msgpack-rubymsgpack.org/Apache-2.0Sadayuki Furuhashi, Theo Hultberg, Satoshi Tagomori789 · 125 forks · 114 contributors
Release cadenceEvery 2 months
Last releaseOct 30, 2026
Open advisories0
Changelog quality0% curated
No release notes found
Release history SecurityYou're on
88 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionmsgpack 0.7 → 10.7.6 → 1.8.7Oct 30, 2026 UnknownSecurity1msgpack 0.6 → 0.70.6.2 → 0.7.6May 10, 2016 Unknownmsgpack 0.5 → 0.60.5.12 → 0.6.2Jul 22, 2015 Unknownmsgpack 0.4 → 0.50.4.7 → 0.5.12May 21, 2015 Unknownmsgpack 0.3 → 0.40.3.9 → 0.4.7May 6, 2012 Unknownmsgpack 0.2 → 0.30.2.2 → 0.3.9Apr 23, 2010 Unknownmsgpack 0.0 → 0.20.0.1 → 0.2.2Aug 5, 2009 Unknown
VersionChannelDateChangesSecurity
1.8.7 StableOct 30, 2026No changes listed1.8.6 StableOct 27, 2026No changes listed1.8.5 StableSep 11, 2026No notes published1.8.4 StableJul 28, 2026No notes published1.8.3 StableJun 10, 2026No notes published1.8.2 StableJun 9, 2026Security1Fix1.8.1 StableMay 28, 2026No notes published1.8.0 StableFeb 6, 2025No notes published1.7.5 youStableNov 11, 2024No notes published1.7.4 StableNov 11, 2024No notes published1.7.3 StableOct 4, 2024No notes published1.7.2 StableJul 18, 2023No changes listed1.7.1 StableMay 19, 2023No changes listed1.7.0 StableMar 29, 2023No changes listed1.6.1 StableMar 3, 2023No changes listed1.6.0 StableSep 30, 2022No changes listed1.5.6 StableAug 23, 2022No changes listed1.5.5 StableAug 22, 2022No changes listed1.5.4 StableJul 25, 2022No changes listed1.5.3 StableJul 1, 2022No changes listed