NuGet
Mapster
A fast, fun and stimulating object to object mapper. Kind of like AutoMapper, just simpler and way, way faster.
c-sharpcodegeneratorfastmappermapping
github.com/MapsterMapper/MapsterMITchaowlert, eric_swann, andrerav5.2k · 410 forks · 87 contributors
Release cadenceEvery week
Last releaseOct 21, 2026
Open advisories0
Changelog quality68% curated
GitHub Releases, gaps for some releases
Release history Security
58 older or filtered releases not shown.
Upgrade guides
Breaking changes and a migration checklist for each major versionMapster 7 → 107.4.0 → 10.0.13Sep 22, 2026 UnknownNew14Changed19Fixed48Other22Mapster 6 → 76.5.1 → 7.4.0Sep 21, 2023 UnknownMapster 5 → 65.3.2 → 6.5.1Oct 23, 2020 UnknownMapster 4 → 54.1.1 → 5.3.2May 29, 2020 UnknownMapster 3 → 43.3.2 → 4.1.1Oct 19, 2019 UnknownMapster 2 → 32.6.1 → 3.3.2Mar 6, 2019 UnknownMapster 1 → 21.14.0 → 2.6.1Dec 8, 2016 Unknown
VersionChannelDateChangesSecurity
10.1.0-pre04 RCOct 21, 2026New1Fixed110.1.0-pre03 RCOct 15, 2026Breaking2New1Changed110.1.0-pre02 RCAug 10, 2026New1Changed1Fixed210.1.0-pre01 RCJul 28, 2026Deprecated1New6Changed1Other210.0.14-pre01 RCOct 21, 2026Fixed110.0.13 StableSep 22, 2026Changed3Fixed110.0.13-pre02 RCAug 25, 2026Changed110.0.13-pre01 RCAug 25, 2026No notes published10.0.12 StableAug 19, 2026Fixed110.0.11 StableJul 15, 2026Changed1Fixed210.0.10 StableJun 29, 2026Fixed210.0.9 StableJun 23, 2026Fixed6Other110.0.8 StableJun 12, 2026New4Fixed9Other510.0.8-pre07 RCMay 28, 2026New2Fixed1Other510.0.8-pre06 RCMay 12, 2026Fixed110.0.8-pre05 RCMay 6, 2026New1Fixed110.0.8-pre04 RCApr 28, 2026Fixed410.0.8-pre03 RCApr 21, 2026Fixed110.0.8-pre02 RCApr 20, 2026Fixed110.0.8-pre01 RCApr 14, 2026New1