NuGet
YamlDotNet
YamlDotNet is a .NET library for YAML. YamlDotNet provides low level parsing and emitting of YAML as well as a high level object model similar to XmlDocument. A serialization library is also included that allows to read and write objects from and to YAML streams.
dotnetparserserializationyaml
github.com/aaubry/YamlDotNetgithub.com/aaubry/YamlDotNet/wikiMITAntoine Aubry2.9k · 534 forks · 134 contributors
Release cadenceEvery 3 weeks
Last releaseJun 26, 2026
Open advisories0
Changelog quality33% curated
GitHub Releases, gaps for some releases
Release history SecurityYou're on
72 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionYamlDotNet 17 → 1817.1.0 → 18.1.0Jun 26, 2026 BreakingBreaking1Changed1Fixed1Other2YamlDotNet 16 → 1716.3.0 → 17.1.0Apr 28, 2026 UnknownSecurity1New2Changed3Fixed5Other8YamlDotNet 15 → 1615.3.0 → 16.3.0Dec 23, 2024 BreakingBreaking5New3Changed12Fixed12Other13YamlDotNet 13 → 1513.7.1 → 15.3.0Jun 16, 2024 BreakingBreaking1New3Fixed4Other6YamlDotNet 12 → 1312.3.1 → 13.7.1Oct 15, 2023 Review neededNew12Changed3Fixed15Other3YamlDotNet 11 → 1211.2.1 → 12.3.1Dec 19, 2022 UnknownNew5Changed5Fixed12Other23YamlDotNet 10 → 1110.1.0 → 11.2.1Jun 28, 2021 BreakingBreaking1New2Fixed6YamlDotNet 9 → 109.1.4 → 10.1.0Mar 31, 2021 BreakingBreaking1New2Changed3Fixed1Other2YamlDotNet 8 → 98.1.2 → 9.1.4Jan 15, 2021 UnknownFixed1YamlDotNet 7 → 87.0.0 → 8.1.2May 28, 2020 BreakingBreaking2New1Changed1Fixed6YamlDotNet 6 → 76.1.2 → 7.0.0Sep 28, 2019 BreakingBreaking4Deprecated2New4Changed1YamlDotNet 5 → 65.4.0 → 6.1.2Jul 20, 2019 BreakingBreaking3New2Changed2Fixed11Other2
VersionChannelDateChangesSecurity
18.1.0 StableJun 26, 2026Changed1Fixed1Other218.0.0 youStableMay 21, 2026Breaking117.1.0 StableApr 28, 2026Security117.0.1 StableApr 10, 2026No notes published17.0.0 StableApr 9, 2026New2Changed3Fixed5Other816.3.1-ec-gitversion- YankedOct 20, 2026No notes published16.3.1-deserializer-max-recursion- YankedOct 20, 2026No notes published16.3.1-cleanup-iskey- YankedOct 20, 2026No notes published16.3.0 StableDec 23, 2024New1Changed1Fixed216.2.1 StableDec 1, 2024Fixed116.2.0 StableNov 10, 2024New1Changed1Fixed216.1.3 StableSep 26, 2024Changed1Other216.1.2 StableSep 13, 2024Other116.1.2-ec-fixlinuxwarnings- YankedOct 20, 2026No notes published16.1.1 StableSep 13, 2024Changed1Fixed2Other616.1.0 StableSep 1, 2024Changed7Fixed4Other316.0.0 StableJul 14, 2024Breaking5New1Changed1Fixed1Other115.3.0 StableJun 16, 2024New1Other115.1.6 StableMay 29, 2024Fixed1Other115.1.4 StableMay 11, 2024Other2