Version 2.88.1

Skottie animations, WinUI, and Tizen support · Released August 17, 2022 · NuGet · GitHub Release

Highlights

This release introduces Skottie (Lottie animation) support as a new standalone package, adds WinUI views for the Uno Platform, brings Tizen as a first-class TFM target, and enables nullable reference type annotations. Native dependencies are updated to address security issues in zlib, libexpat, libwebp, and libjpeg-turbo. Five community contributors made their first contributions.

Breaking Changes

None in this release.

New Features

API Surface

Skottie animation support — New SkiaSharp.Skottie package for playing Lottie/Bodymovin animations backed by Skia's Skottie engine, including nullable attributes, TimeSpan overloads, non-seekable stream handling, and BOM support. ❤️ @jeromelaban (#1987, #2091, #2119, #2126, #2167)
AVIF image encode format — Exposed the AVIF encoder for saving images in AVIF format. ❤️ @mgood7123 (#2154)
SKShaper text alignment — SKShaper now respects the SKPaint.TextAlign property when shaping text. ❤️ @koolkdev (#1910)
Nullable annotations — Added nullable reference type annotations and newer TFMs across the library. (#2120)
SKDataStream made writeable — SKDataStream now supports write operations, matching SKData behavior. (#2128)

Platform

WinUI support for Uno — Added SkiaSharp views for Uno Platform's WinUI target. ❤️ @jeromelaban (#2042)
Tizen TFM — Added net6.0-tizen target framework for Samsung Tizen devices. (#2099)
Emscripten 3.1.7 — Updated WASM builds for Emscripten 3.1.7. ❤️ @jeromelaban (#2094)
Skottie on all .NET 6 platforms — Skottie available on iOS, Android, Mac Catalyst, macOS, tvOS, and Tizen. ❤️ @jeromelaban (#2133)

Engine

SKGLView backing scale factor — SKGLView now reshapes when the window's BackingScaleFactor changes (e.g., moving between Retina and non-Retina displays). ❤️ @HarlanHugh (#1854)
Internal library configuration — Added an initial configuration system for internal library settings. (#1856)

Security

Update zlib — Fixed PNG loading issues by updating the bundled zlib. (#2045)
Update libexpat to 2.4.8 — Addresses known vulnerabilities. (#2189)
Update libwebp to 1.2.3 — Addresses known vulnerabilities. (#2193)
Update libjpeg-turbo to 2.1.3 — Addresses known vulnerabilities. (#2206)

Bug Fixes

Return null on invalid resize bounds — Prevents crashes when calling resize with invalid dimensions. (#2054)
Fix Alpine Linux builds — Corrected native library loading on Alpine/musl-based distributions. (#2168, #2192)
Fix critical section after deletion — Prevents accessing a deleted critical section during HandleDictionary cleanup. ❤️ @RichardD2 (#2195)
Fix font loading with Unicode names — Fonts with Unicode characters in their names now load correctly. ❤️ @lindexi (#2146)
Use full libc library name — Fixes P/Invoke resolution on certain Linux configurations. (#2213)

Platform Support

Platform	What's New
🍎 Apple	Skottie on iOS/macOS/tvOS/Mac Catalyst, SKGLView backing scale fix
🪟 Windows	WinUI views for Uno Platform
🐧 Linux	Alpine build fixes, full libc name resolution
🤖 Android	Skottie support
🌐 WebAssembly	Emscripten 3.1.7, Uno WinUI WASM support

Community Contributors ❤️

Contributor	What They Did
@jeromelaban	Skottie support, WinUI, Emscripten 3.1.7, multi-platform Skottie
@koolkdev	SKShaper text alignment support
@mgood7123	AVIF encode format
@HarlanHugh	SKGLView backing scale factor reshape
@lindexi	Unicode font name loading fix
@RichardD2	Critical section deletion fix