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4.148.0 Unreleased

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<!-- RAW PR DATA — Do not remove this comment block. AI uses this data to generate the polished release notes below. Re-run the script to refresh this data from git history. Generated: 2026-06-11T23:22:02Z by generate-release-notes.py version: 4.148.0 status: unreleased supersedes: 4.147.0 (preview only, rolled up) branch: main diff: release/3.119.4..main prs: 160 - release-notes: emit two-way supersede links on successor pages by @mattleibow in https://github.com/mono/SkiaSharp/pull/4152 (1 commit, 1 day) - release-notes: roll up preview-only/skipped versions into their successor by @mattleibow in https://github.com/mono/SkiaSharp/pull/4149 (4 commits, 2 days) - Fix SKIASHARP_VERSION yaml missed by the m148 bump by @mattleibow in https://github.com/mono/SkiaSharp/pull/4144 (2 commits, 1 day) - Obsolete remaining legacy paint state-reading APIs by @mattleibow in https://github.com/mono/SkiaSharp/pull/4114 (1 commit, 1 day) - [skia] Update to Skia milestone m148 by @mattleibow in https://github.com/mono/SkiaSharp/pull/4125 (13 commits, 4 days) - Move native-compat gate from [ModuleInitializer] to SkiaApi cctor by @mattleibow in https://github.com/mono/SkiaSharp/pull/4133 (1 commit, 1 day) - Fix SKPixmap.GetPixelSpan<T>(x,y) offset using Height instead of Width by @mattleibow in https://github.com/mono/SkiaSharp/pull/4128 (2 commits, 2 days) - Rework the lifecycle of singleton instances by @ramezgerges in https://github.com/mono/SkiaSharp/pull/4080 [community ✨] (29 commits, 8 days) - Promote SKPaint text/font obsolete members to error by @ramezgerges in https://github.com/mono/SkiaSharp/pull/4068 [community ✨] (7 commits, 4 days) - Update expat to 2.8.1 by @mattleibow in https://github.com/mono/SkiaSharp/pull/4079 (1 commit, 1 day) (skia: mono/skia#245) - [skia-sync] Merge upstream chrome/m147 bug fixes by @mattleibow in https://github.com/mono/SkiaSharp/pull/4081 (2 commits, 2 days) - Migrate device and WASM tests from XHarness to DeviceRunners `dotnet test` by @mattleibow in https://github.com/mono/SkiaSharp/pull/4004 (23 commits, 8 days) - feat(ci-status): add GitHub Actions tracking and restructure as collect → AI → render pipeline by @mattleibow in https://github.com/mono/SkiaSharp/pull/4099 (8 commits, 2 days) - Add Chrome Releases blog integration to security-audit skill by @mattleibow in https://github.com/mono/SkiaSharp/pull/4097 (18 commits, 1 day) - Fix WinUI Projection DLL not found for .NET 9 consumers by @mattleibow in https://github.com/mono/SkiaSharp/pull/4084 (1 commit, 1 day) - Add ci-status skill for daily CI health dashboard by @mattleibow in https://github.com/mono/SkiaSharp/pull/4094 (7 commits, 2 days) - Revert "Add --pull to Docker builds to ensure fresh base images (#4087)" by @mattleibow in https://github.com/mono/SkiaSharp/pull/4091 (1 commit, 1 day) - Move .NET SDK install to common section for all builds by @mattleibow in https://github.com/mono/SkiaSharp/pull/4089 (1 commit, 1 day) - Add --pull to Docker builds to ensure fresh base images by @mattleibow in https://github.com/mono/SkiaSharp/pull/4087 (1 commit, 1 day) - Migrate Linux Docker builds to .NET official cross-compilation images by @mattleibow in https://github.com/mono/SkiaSharp/pull/4062 (49 commits, 3 days) - Add es-metadata.yml to cache exclude list by @mattleibow in https://github.com/mono/SkiaSharp/pull/4077 (1 commit, 1 day) - Add es-metadata.yml with initial configuration by @mattleibow in https://github.com/mono/SkiaSharp/pull/4075 (1 commit, 1 day) - docs: force-push docs-live to prevent repo size bloat by @mattleibow in https://github.com/mono/SkiaSharp/pull/4073 (1 commit, 1 day) - [skia-sync] Merge upstream chrome/m147 bug fixes by @mattleibow in https://github.com/mono/SkiaSharp/pull/4044 (1 commit, 1 day) (skia: mono/skia#242) - Improve security-audit skill: schema enforcement, CG reliability, and report quality by @mattleibow in https://github.com/mono/SkiaSharp/pull/4070 (5 commits, 1 day) - Update .NET SDK version to 10.0.108 by @mattleibow in https://github.com/mono/SkiaSharp/pull/4055 (3 commits, 2 days) - Update skia submodule to disable unused dependency manifests by @mattleibow in https://github.com/mono/SkiaSharp/pull/4054 (1 commit, 1 day) (skia: mono/skia#243) - Update release notes for 4.147.0 (unreleased/main) by @github-actions[bot] in https://github.com/mono/SkiaSharp/pull/4061 [community ✨] (1 commit, 1 day) - [Security] Add Component Governance alert integration to security-audit skill by @mattleibow in https://github.com/mono/SkiaSharp/pull/4058 (30 commits, 2 days) - Fix release notes workflow to always checkout main by @mattleibow in https://github.com/mono/SkiaSharp/pull/4059 (2 commits, 1 day) - [docs] Update release notes for 4.147.0 (preview.3) by @mattleibow in https://github.com/mono/SkiaSharp/pull/4057 (3 commits, 1 day) - Update harfbuzz to 14.2.0 by @mattleibow in https://github.com/mono/SkiaSharp/pull/4035 (1 commit, 1 day) (skia: mono/skia#241) - Document ADO pipeline chain tracking in release skills by @mattleibow in https://github.com/mono/SkiaSharp/pull/4050 (9 commits, 2 days) - docs: update release notes for 4.147.0 (unreleased) by @github-actions[bot] in https://github.com/mono/SkiaSharp/pull/4049 [community ✨] (1 commit, 1 day) - Add automated API diff workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/4036 (1 commit, 1 day) - [docs] Update API diff for v3.119.2 by @github-actions[bot] in https://github.com/mono/SkiaSharp/pull/4046 [community ✨] (1 commit, 1 day) - Fix ANGLE WinAppSDK download failure on 1ES agents by @mattleibow in https://github.com/mono/SkiaSharp/pull/4014 (10 commits, 2 days) - Add GitHub Actions workflow for API diff by @mattleibow in https://github.com/mono/SkiaSharp/pull/4038 (1 commit, 1 day) - [api-docs] Fix false-positive extraction and add merge guard by @mattleibow in https://github.com/mono/SkiaSharp/pull/4030 (2 commits, 1 day) - docs: update release notes for 4.147.0 (unreleased) by @github-actions[bot] in https://github.com/mono/SkiaSharp/pull/4029 [community ✨] (1 commit, 1 day) - Update libjpeg-turbo to 3.1.4.1 by @mattleibow in https://github.com/mono/SkiaSharp/pull/4012 (1 commit, 1 day) - [WASM] Drop native builds for pre-.NET 8 Emscripten versions by @mattleibow in https://github.com/mono/SkiaSharp/pull/4022 (4 commits, 1 day) - Add manifest generation to docs-tool.ps1 extract by @mattleibow in https://github.com/mono/SkiaSharp/pull/4025 (24 commits, 6 days) - Fix font test failures in sync workflow by mounting /usr/share/fonts by @mattleibow in https://github.com/mono/SkiaSharp/pull/4023 (1 commit, 1 day) - Move API docs workflow to docs repo and optimize skill architecture by @mattleibow in https://github.com/mono/SkiaSharp/pull/4024 (22 commits, 6 days) - [Native/Alpine] Add retry and failure detection to apk.static download by @mattleibow in https://github.com/mono/SkiaSharp/pull/4013 (1 commit, 1 day) - [CI] Use graceful skip for Skia Upstream Sync when nothing to sync by @mattleibow in https://github.com/mono/SkiaSharp/pull/4020 (1 commit, 1 day) - Fix docs deploy race condition with retry loop by @mattleibow in https://github.com/mono/SkiaSharp/pull/4019 (1 commit, 1 day) - Update cgmanifest.json to match actual DEPS pins by @mattleibow in https://github.com/mono/SkiaSharp/pull/3830 (1 commit, 1 day) - Update freetype to 2.14.3 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3726 (1 commit, 1 day) - [main] Update zlib to 1.3.2.1-motley by @mattleibow in https://github.com/mono/SkiaSharp/pull/3720 (2 commits, 2 days) - Update Tizen SDK installer from 6.1 to 10.0 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3743 (1 commit, 1 day) - Fix UnicodeEncodeError on Windows CI in repo-deps.py by @mattleibow in https://github.com/mono/SkiaSharp/pull/4006 (1 commit, 1 day) - Add HBColor struct for proper hb_color_t representation by @mattleibow in https://github.com/mono/SkiaSharp/pull/4000 (2 commits, 1 day) - Add missing API wrappers and fix naming convention violations by @mattleibow in https://github.com/mono/SkiaSharp/pull/4001 (2 commits, 1 day) - Enable TreatWarningsAsErrors in binding/ and fix all warnings by @mattleibow in https://github.com/mono/SkiaSharp/pull/3752 (10 commits, 4 days) - Blazor gallery redesign: API Atlas with tag cloud filtering by @mattleibow in https://github.com/mono/SkiaSharp/pull/3970 (17 commits, 3 days) - Skip Skia sync workflow when upstream is already merged by @mattleibow in https://github.com/mono/SkiaSharp/pull/3971 (1 commit, 1 day) - Update Uno Platform link and description n README.md by @sasakrsmanovic in https://github.com/mono/SkiaSharp/pull/3966 [community ✨] (1 commit, 1 day) - [samples] Add Hero Image gallery sample by @mattleibow in https://github.com/mono/SkiaSharp/pull/3792 (1 commit, 1 day) - Fix CI: samples, Docker, NanoServer, coverlet, and build chain by @mattleibow in https://github.com/mono/SkiaSharp/pull/3835 (9 commits, 6 days) (skia: mono/skia#232) - Add automated API docs pipeline by @mattleibow in https://github.com/mono/SkiaSharp/pull/3918 (40 commits, 3 days) - [samples] Reduce SkiaFiddle WASM application size by ~60% by @ebariche in https://github.com/mono/SkiaSharp/pull/3849 [community ✨] (11 commits, 2 days) - Run stale staging sweep daily instead of weekly by @mattleibow in https://github.com/mono/SkiaSharp/pull/3911 (1 commit, 1 day) - Add content-based build caching with ADO Cache@2 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3826 (141 commits, 8 days) - Add automated Skia upstream sync workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/3825 (84 commits, 6 days) - Add workflow to persist agentic workflow data to aw-data branch by @mattleibow in https://github.com/mono/SkiaSharp/pull/3907 (1 commit, 1 day) - [docs] Release notes for 4.147.0 by @github-actions[bot] in https://github.com/mono/SkiaSharp/pull/3882 [community ✨] (3 commits, 2 days) - Fix SkiaSharp references for Uno Platform's Gallery sample by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3867 [community ✨] (1 commit, 1 day) - Keep raw PR data in release notes files as HTML comment by @mattleibow in https://github.com/mono/SkiaSharp/pull/3877 (1 commit, 1 day) - Add SKStream.GetData() for zero-copy stream-to-data conversion by @mattleibow in https://github.com/mono/SkiaSharp/pull/3772 (9 commits, 3 days) (skia: mono/skia#200) - Add animated WebP encoding support (SKWebpEncoder) by @mattleibow in https://github.com/mono/SkiaSharp/pull/3771 (10 commits, 4 days) (skia: mono/skia#199) - Fix finalizer crash in SKPath when SKPathBuilder is collected first by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3796 [community ✨] (1 commit, 1 day) - docs: update release notes for 4.147.0 by @github-actions[bot] in https://github.com/mono/SkiaSharp/pull/3840 [community ✨] (1 commit, 1 day) - fix: skip release notes workflow when only docs/releases change by @mattleibow in https://github.com/mono/SkiaSharp/pull/3839 (1 commit, 1 day) - docs: update release notes for 4.147.0 by @github-actions[bot] in https://github.com/mono/SkiaSharp/pull/3837 [community ✨] (1 commit, 1 day) - fix: add recreate-ref to release notes workflow for branch reuse by @mattleibow in https://github.com/mono/SkiaSharp/pull/3836 (1 commit, 1 day) - [samples] Bump Basic Uno sample to Uno.Sdk/6.6.0-dev.208 by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3821 [community ✨] (1 commit, 1 day) - Disable PR artifact retrieval in get-build-type.ps1 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3827 (1 commit, 1 day) - Fix update-docs workflow: add missing mdoc assembly search paths for Tizen and Gtk4 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3824 (6 commits, 1 day) - fix: preserve branch name in release notes workflow to reuse PRs by @mattleibow in https://github.com/mono/SkiaSharp/pull/3822 (1 commit, 1 day) - [Gallery] Add 5 new interactive samples and redesign Blazor home page by @mattleibow in https://github.com/mono/SkiaSharp/pull/3757 (28 commits, 4 days) - Fix Apple platform TFMs: use 26.0 for libraries, unversioned for apps by @mattleibow in https://github.com/mono/SkiaSharp/pull/3798 (3 commits, 1 day) - Make release notes script fully git-based with cumulative rollup by @mattleibow in https://github.com/mono/SkiaSharp/pull/3815 (12 commits, 1 day) - Add allowed-base-branches: [main] to release notes workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/3813 (1 commit, 1 day) - Delete .github/workflows/skia-analyst.md by @mattleibow in https://github.com/mono/SkiaSharp/pull/3812 (4 commits, 1 day) - Revert "Fix skia-analyst and sample-scout: no safe outputs generated (#3805)" by @mattleibow in https://github.com/mono/SkiaSharp/pull/3811 (1 commit, 1 day) - Fix release notes script git fetch for CI shallow clones by @mattleibow in https://github.com/mono/SkiaSharp/pull/3808 (1 commit, 1 day) - Fix skia-analyst and sample-scout: no safe outputs generated by @mattleibow in https://github.com/mono/SkiaSharp/pull/3805 (1 commit, 1 day) - Simplify sample-scout to read GM files from local submodule by @mattleibow in https://github.com/mono/SkiaSharp/pull/3802 (1 commit, 1 day) - Add skia-analyst and sample-scout skills with daily/weekly workflows by @mattleibow in https://github.com/mono/SkiaSharp/pull/3755 (31 commits, 3 days) - Improve docs landing page layout and hero section by @mattleibow in https://github.com/mono/SkiaSharp/pull/3794 (2 commits, 1 day) - Automate website release notes with branch-diffing script by @mattleibow in https://github.com/mono/SkiaSharp/pull/3787 (51 commits, 1 day) - Dev/skiafiddle ux improvements by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3790 [community ✨] (17 commits, 1 day) - [samples] Fix Skottie package downgrade NU1605 in Uno gallery by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3785 [community ✨] (4 commits, 1 day) - [release-notes] Reuse single PR and add effort metrics to workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/3782 (5 commits, 1 day) - Bump HarfBuzzSharp to 8.3.1.6 after release by @mattleibow in https://github.com/mono/SkiaSharp/pull/3780 (1 commit, 1 day) - Update SKIASharp version to 4.147.0 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3774 (1 commit, 1 day) - Delete samples/Gallery/Uno/nuget.config by @mattleibow in https://github.com/mono/SkiaSharp/pull/3765 (1 commit, 1 day) - Bump skia to milestone 147 by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3702 [community ✨] (59 commits, 9 days) (skia: mono/skia#184) - [samples] Add SkiaFiddle Uno Platform WebAssembly sample by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3762 [community ✨] (5 commits, 2 days) - Add website release notes with AI-powered generation pipeline by @mattleibow in https://github.com/mono/SkiaSharp/pull/3763 (38 commits, 2 days) - Update the icon for the new v4 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3764 (2 commits, 1 day) - Add FillPath and TextToPath gallery samples by @mattleibow in https://github.com/mono/SkiaSharp/pull/3761 (1 commit, 1 day) - Add download button and fix WASM text rendering in gallery by @mattleibow in https://github.com/mono/SkiaSharp/pull/3760 (6 commits, 1 day) - [samples] Add Uno Platform WebAssembly gallery by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3758 [community ✨] (1 commit, 1 day) - Add gallery sample guidance to api-add-review skill by @mattleibow in https://github.com/mono/SkiaSharp/pull/3756 (1 commit, 1 day) - Expand API design docs and rename add-api skill to api-add-review by @mattleibow in https://github.com/mono/SkiaSharp/pull/3749 (2 commits, 1 day) - Add SKSamplingOptions support to SKSurface.Draw and SKCanvas.DrawSurface by @Copilot in https://github.com/mono/SkiaSharp/pull/3491 [community ✨] (6 commits, 3 days) - Fix review-skia-update skill: submodule fetch, stale paths, and robustness by @mattleibow in https://github.com/mono/SkiaSharp/pull/3753 (4 commits, 1 day) - Add color font palette support and improve variable font robustness by @mattleibow in https://github.com/mono/SkiaSharp/pull/3742 (43 commits, 4 days) (skia: mono/skia#197) - Fix x86 .NET Framework threading test OOM failures (#3608) by @mattleibow in https://github.com/mono/SkiaSharp/pull/3674 (1 commit, 1 day) - Add variable font support to SkiaSharp and HarfBuzzSharp by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3703 [community ✨] (17 commits, 4 days) (skia: mono/skia#185) - Upgrade SkiaSharp major version from 3.x to 4.x by @mattleibow in https://github.com/mono/SkiaSharp/pull/3640 (9 commits, 5 days) - Fix YAML syntax error in build-site workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/3750 (1 commit, 1 day) - Replace release-notes-audit with skia-feature-scout skill by @mattleibow in https://github.com/mono/SkiaSharp/pull/3746 (16 commits, 2 days) - Add staging URL to docs deploy commit message by @mattleibow in https://github.com/mono/SkiaSharp/pull/3748 (1 commit, 1 day) - Fix debian/13 Docker build for non-loong64/riscv64 architectures by @mattleibow in https://github.com/mono/SkiaSharp/pull/3747 (1 commit, 1 day) - Update devcontainers: split into managed and native configs by @mattleibow in https://github.com/mono/SkiaSharp/pull/3745 (1 commit, 1 day) - Bump externals/skia to include sk_fontmgr_legacy_create_typeface by @mattleibow in https://github.com/mono/SkiaSharp/pull/3744 (1 commit, 1 day) - Fix #3693: move default-typeface resolution to the managed layer by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3730 [community ✨] (9 commits, 2 days) - Add --milestone parameter: AI extracts, orchestrator validates by @mattleibow in https://github.com/mono/SkiaSharp/pull/3731 (1 commit, 1 day) - [samples] Rewrite Uno Platform sample as multi-page app by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3666 [community ✨] (3 commits, 3 days) - Add Suggested Repro Platform to auto-triage workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/3729 (1 commit, 1 day) - [AI] Improve native-dependency-update skill with post-mortem fixes by @mattleibow in https://github.com/mono/SkiaSharp/pull/3727 (11 commits, 1 day) - [CI] Improve Android CI disk space and emulator startup by @mattleibow in https://github.com/mono/SkiaSharp/pull/3676 (1 commit, 1 day) - Update libpng to 1.6.58 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3718 (1 commit, 1 day) - Update libexpat to 2.7.5 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3717 (1 commit, 1 day) - Bump SkiaSharpGenerator to CppAst 0.21.4 and make it work on Linux by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3714 [community ✨] (4 commits, 2 days) (skia: mono/skia#186) - [CI] Free disk space on hosted Linux agents by @mattleibow in https://github.com/mono/SkiaSharp/pull/3712 (11 commits, 1 day) - Update SKIASHARP_VERSION to 3.133.0 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3713 (1 commit, 1 day) - [auto-triage] Upload triage reports (JSON/MD/HTML) to agent artifact by @mattleibow in https://github.com/mono/SkiaSharp/pull/3711 (5 commits, 1 day) - [issue-triage] Add auto-triage agentic workflow with gh-aw by @mattleibow in https://github.com/mono/SkiaSharp/pull/3710 (13 commits, 1 day) - Add gh-aw agent config and actions lock by @mattleibow in https://github.com/mono/SkiaSharp/pull/3709 (13 commits, 1 day) - Clean up issue-triage skill: semantic enum ordering, cost labels, schema fixes by @mattleibow in https://github.com/mono/SkiaSharp/pull/3708 (2 commits, 1 day) - Use flat /tmp paths in issue-triage skill for gh-aw sandbox compatibility by @mattleibow in https://github.com/mono/SkiaSharp/pull/3707 (1 commit, 1 day) - Fix auto-triage: set min-integrity=none for public issue access by @mattleibow in https://github.com/mono/SkiaSharp/pull/3706 (3 commits, 1 day) - [issue-triage] Rewrite skill in Python + add auto-triage agentic workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/3704 (16 commits, 2 days) - Move skills from .claude/ to .agents/ by @mattleibow in https://github.com/mono/SkiaSharp/pull/3697 (1 commit, 1 day) - Revert "Add daily-digest agentic workflow (#3694)" by @mattleibow in https://github.com/mono/SkiaSharp/pull/3696 (1 commit, 1 day) - Add daily-digest agentic workflow by @mattleibow in https://github.com/mono/SkiaSharp/pull/3694 (1 commit, 1 day) - Move AI agent config to shared location for Claude Code and GitHub Copilot by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3692 [community ✨] (1 commit, 1 day) - [build] Split Tizen native CI into per-architecture jobs by @mattleibow in https://github.com/mono/SkiaSharp/pull/3672 (3 commits, 1 day) - Add release-notes-audit skill for Skia API gap analysis by @mattleibow in https://github.com/mono/SkiaSharp/pull/3675 (3 commits, 1 day) - Add weekly sweep to clean stale PR staging directories by @mattleibow in https://github.com/mono/SkiaSharp/pull/3671 (1 commit, 1 day) - Add Linux Bionic native assets support by @4Darmygeometry in https://github.com/mono/SkiaSharp/pull/3217 [community ✨] (71 commits, 15 days) - Bump Skia to milestone 133 by @mattleibow in https://github.com/mono/SkiaSharp/pull/3660 (13 commits, 3 days) - Improve update-skia merge conflict guidance by @mattleibow in https://github.com/mono/SkiaSharp/pull/3662 (3 commits, 2 days) - Fix docs deploy race condition by serializing Go Live deployments by @mattleibow in https://github.com/mono/SkiaSharp/pull/3670 (1 commit, 1 day) - Redesign docs homepage: hero, code showcase, gallery, and resources by @mattleibow in https://github.com/mono/SkiaSharp/pull/3668 (51 commits, 1 day) - [Gallery] Refine Image Decoder metadata overlay by @mattleibow in https://github.com/mono/SkiaSharp/pull/3669 (5 commits, 1 day) - Add submodule init and DEPS sync to review orchestrator by @mattleibow in https://github.com/mono/SkiaSharp/pull/3667 (1 commit, 1 day) - Fix review-skia-update milestone detection by @mattleibow in https://github.com/mono/SkiaSharp/pull/3665 (1 commit, 1 day) - Improve the update-skia skill from m119→m133 lessons by @mattleibow in https://github.com/mono/SkiaSharp/pull/3658 (3 commits, 1 day) - Fix cgmanifest.json version drift and overhaul security-audit skill by @mattleibow in https://github.com/mono/SkiaSharp/pull/3656 (12 commits, 1 day) - [Android] Fix SKGLView not rendering after tab switch in MAUI TabBar by @SimonvBez in https://github.com/mono/SkiaSharp/pull/3076 [community ✨] (2 commits, 2 days) - [build] Use PolySharp for C# 13 support on legacy TFMs by @4Darmygeometry in https://github.com/mono/SkiaSharp/pull/3642 [community ✨] (14 commits, 4 days) - [tizen] Add x64 and arm64 native build support by @mattleibow in https://github.com/mono/SkiaSharp/pull/3620 (3 commits, 2 days) (skia: mono/skia#175) - Update build-site workflow to remove path filters by @mattleibow in https://github.com/mono/SkiaSharp/pull/3653 (2 commits, 1 day) - Bump SkiaSharp to Skia milestone 132 by @ramezgerges in https://github.com/mono/SkiaSharp/pull/3560 [community ✨] (31 commits, 11 days) (skia: mono/skia#171) --> <!-- Generated: 2026-06-11T23:28:00Z by claude-sonnet-4.6 -->

Version 4.148.0

Upcoming release · In development · Not yet available on NuGet

Supersedes 4.147.0 · Rolls up preview-only work that was never released as stable — those changes are included cumulatively below.

Highlights

SkiaSharp 4 is the first major version upgrade in many years, built on the Skia m148 engine and bringing a wave of new capabilities: animated WebP encoding, variable and color-palette font support, expanded platform reach (Linux Bionic, Tizen x64/arm64), and a comprehensive API modernization sweep. This release cumulatively includes all work from the skipped 4.147.0 preview cycle. Special thanks to @ramezgerges, @4Darmygeometry, @SimonvBez, and @ebariche for major community contributions across this release.

⚠️ Breaking Changes

  • SkiaSharp major version bump to 4.x — The package version jumps from 3.x to 4.x. Existing NuGet references require a version update. (#3640)
  • SKPaint text/font obsolete members are now errors — APIs marked [Obsolete] in earlier releases now produce compile errors. Migrate to the SKFont-based text APIs. ❤️ @ramezgerges (#4068)

New Features

Engine

  • Skia milestone m148 — Updated the Skia engine to milestone 148, picking up rendering improvements, bug fixes, and upstream security patches. (#4125)

Images & Encoding

  • Animated WebP encoding (SKWebpEncoder) — Full support for encoding multi-frame animated WebP files. (#3771)

API Surface

  • SKStream.GetData() — Zero-copy conversion of any SKStream to an SKData object. (#3772)
  • HBColor struct — Adds a proper managed type for HarfBuzz hb_color_t, replacing raw integer handling. (#4000)
  • SKSamplingOptions on SKSurface.Draw / SKCanvas.DrawSurface — Exposes sampling-quality control on surface-to-canvas drawing. ❤️ @Copilot (#3491)
  • Missing API wrappers and naming fixes — Adds several previously unbound C API entry points and corrects naming convention violations. (#4001)
  • Obsolete legacy SKPaint state-reading APIs — Remaining SKPaint text/font state properties are marked [Obsolete] in preparation for removal. (#4114)

Text & Fonts

  • Variable font support — Full OpenType variable font axis support in SKTypeface and HarfBuzzSharp. ❤️ @ramezgerges (#3703)
  • Color font palette support — Adds SKTypeface APIs to enumerate and select color font palettes (CPAL/COLR). (#3742)

Platform

  • Linux Bionic native assets — New native assets for Linux Bionic to support scenarios using the Android NDK sysroot outside of Android. ❤️ @4Darmygeometry (#3217)
  • Tizen x64 and ARM64 native builds — Tizen native support extended to x64 and arm64 architectures. (#3620)

Bug Fixes

  • SKPixmap.GetPixelSpan<T>(x, y) offset — Fixed a bug where the row stride calculation used Height instead of Width, producing wrong pixel addresses. (#4128)
  • SKPath finalizer crash — Fixed a crash when SKPathBuilder is collected by the GC before the SKPath built from it. ❤️ @ramezgerges (#3796)
  • Default typeface resolution — Moved default-typeface lookup from native to the managed layer, fixing inconsistencies on platforms without a system font manager. ❤️ @ramezgerges (#3730)
  • Singleton instance lifecycle — Reworked the lifecycle of shared singleton objects to prevent premature disposal and ordering bugs. ❤️ @ramezgerges (#4080)
  • Native-compat gate timing — Moved the native compatibility check from [ModuleInitializer] to the SkiaApi static constructor, fixing edge cases in .NET trimming and NativeAOT scenarios. (#4133)
  • Android SKGLView tab switch — Fixed SKGLView not re-rendering after a MAUI TabBar tab switch on Android. ❤️ @SimonvBez (#3076)
  • WinUI Projection DLL discovery — Fixed libWinAppSDK_SkiaSharp.dll not being found by .NET 9 WinUI consumers. (#4084)

Security

Multiple native dependencies updated with security patches:

Platform Support

PlatformWhat's New
🐧 LinuxBionic (NDK legacy ABI) native assets
🍎 AppleTFM alignment: 26.0 for libraries, unversioned for app targets
🤖 AndroidFixed SKGLView rendering after MAUI tab switch
🪟 WindowsFixed WinUI Projection DLL discovery for .NET 9
🏗️ Tizenx64 and ARM64 native builds
🌐 WebAssemblyDropped pre-.NET 8 Emscripten build variants

Community Contributors ❤️

ContributorWhat They Did
@ramezgergesVariable font support, color font robustness, singleton lifecycle rework, SKPath finalizer fix, default-typeface fix, SKPaint API cleanup, Skia milestone bumps
@4DarmygeometryLinux Bionic native assets, C# 13 PolySharp support on legacy TFMs
@SimonvBezFixed Android SKGLView not rendering after MAUI tab switch
@CopilotSKSamplingOptions support on SKSurface.Draw / SKCanvas.DrawSurface
@ebaricheReduced SkiaFiddle WASM application size by ~60%
@sasakrsmanovicUpdated Uno Platform link and description in README

Plus several CI, build infrastructure, and developer tooling improvements.