RubyGems
nio4r
New IO for Ruby
github.com/socketry/nio4rMITTony Arcieri, Samuel Williams, Olle Jonsson +48993 · 93 forks · 58 contributors
Release cadenceEvery 4 months
Last releaseOct 31, 2025
Open advisories0
Changelog quality93% curated
CHANGELOG + GitHub Releases, gaps for some releases
Release history SecurityYou're on
39 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionnio4r 1 → 21.2.1 → 2.7.5Oct 31, 2025 BreakingPlatform1Changed3Fixed8Other4nio4r 0.5 → 10.5.0 → 1.2.1Jan 31, 2016 BreakingBreaking1New2Changed5Fixed2Other7nio4r 0.4 → 0.50.4.6 → 0.5.0Aug 7, 2013 Unknownnio4r 0.3 → 0.40.3.3 → 0.4.6May 27, 2013 Unknownnio4r 0.2 → 0.30.2.2 → 0.3.3Mar 8, 2012 Unknownnio4r 0.1 → 0.20.1.0 → 0.2.2Jan 8, 2012 Unknownnio4r 0.0 → 0.10.0.1 → 0.1.0Dec 26, 2011 Unknown
VersionChannelDateChangesSecurity
2.7.5 StableOct 31, 2025No notes published2.7.4 StableOct 28, 2024Changed1Fixed12.7.3 StableMay 7, 2024Other12.7.2 StableMay 7, 2024Platform1Fixed1Other12.7.1 StableMar 20, 2024Fixed1Other22.7.0 StableDec 1, 2023Changed1Fixed22.6.1 youStableNov 21, 2023Fixed12.6.0 StableNov 16, 2023Changed1Fixed22.5.9 StableApr 2, 2023No changes listed2.5.8 StableAug 3, 2021No changes listed2.5.7 StableMar 4, 2021No changes listed2.5.6 StableMar 3, 2021No changes listed2.5.5 StableFeb 5, 2021No changes listed2.5.4 StableSep 15, 2020No changes listed2.5.3 StableSep 7, 2020No changes listed2.5.2 StableSep 24, 2019No changes listed2.5.1 StableAug 28, 2019No changes listed2.5.0 StableAug 28, 2019No changes listed2.4.0 StableJul 7, 2019No changes listed2.3.1 StableMay 2, 2018No changes listed