Release Notes

Release notes for SkiaSharp. SkiaSharp ships as NuGet packages whose minor version is the Chrome/Skia milestone it builds on. Two release lines are supported at a time — a stable line for production and a preview line for the milestone currently being stabilized — mirroring Chrome's release channels (stable / extended-stable and beta). Everything else stays published for reference but is no longer serviced.

Release cadence

SkiaSharp 4.x follows Chrome's release cycle. Each SkiaSharp minor version corresponds to a Chrome/Skia milestone and progresses through four phases:

Chrome Event	SkiaSharp Release	Purpose
Beta Promotion	Preview 1	Merge upstream Skia, ship initial preview
Early Stable	Preview 2	Bug fixes and API additions from preview feedback
Stable Cut	RC	Critical bug fixes only, no new features
Stable Release	Stable	Ship to NuGet.org, tag and create GitHub Release

Schedule for the two milestones currently in flight (m150 and m151), from the Chromium release schedule:

Date	Event	Package
Jun 3	m150 Beta Promotion	`4.150.0-preview.1`
Jun 17	m150 Early Stable	`4.150.0-preview.2`
Jun 23	m150 Stable Cut	`4.150.0-rc.1`
Jun 30	m150 Stable Release	`4.150.0`
Jul 1	m151 Beta Promotion	`4.151.0-preview.1`
Jul 15	m151 Early Stable	`4.151.0-preview.2`
Jul 21	m151 Stable Cut	`4.151.0-rc.1`
Jul 28	m151 Stable Release	`4.151.0`

Two milestones are always in flight — as one enters its RC/stable phase, the next begins its preview phase.

Note

Starting with Chrome 153 (September 2026), Chrome moves from a 4-week to a 3-week release cycle. Because SkiaSharp's cadence is driven by Chrome's actual schedule events, the phases above will naturally compress — preview through stable will complete in ~3 weeks instead of ~4.

Versioning

Packages follow the scheme 4.{chrome_milestone}.{patch} — the middle number is the Chrome milestone number. For example, 4.151.0 ships alongside Chrome 151's stable release.

Preview: 4.151.0-preview.1, 4.151.0-preview.2
Release candidate: 4.151.0-rc.1
Stable: 4.151.0

Prerelease suffixes follow NuGet semver conventions.

Schedule reference

The full Chrome release calendar is published at Chromium's release schedule. SkiaSharp milestones are synced automatically from this schedule — check the GitHub milestones for upcoming release dates.

Support overview

Stable — the line we recommend for production apps. Tracks Chrome's Stable / Extended Stable channel.
Preview — prerelease NuGets for the next milestone, so you can test ahead of its stable release. Tracks Chrome's Beta channel.
Out of support — older 3.x / 4.x lines, still listed below for reference but no longer serviced.
Obsolete — SkiaSharp 1.x and 2.x, no longer maintained.