chore(build): use SDL3

vendor/sdl-3.2.10/docs/release_checklist.md

@@ -0,0 +1,52 @@
+# Release checklist
+
+* Run `build-scripts/create-release.py -R libsdl-org/SDL --ref <branch>` to do
+  a dry run creating the release assets. Verify that the archives are correct.
+
+* Tag the release, e.g. `git tag release-3.8.0; git push --tags`
+
+* Run `build-scripts/create-release.py -R libsdl-org/SDL --ref <release-tag>`
+  to have GitHub Actions create release assets. This makes sure the revision
+  string baked into the archives is correct.
+
+* Verify that the source archive REVISION.txt has the correct release tag.
+
+* Sign the source archives and upload everything to libsdl.org
+
+* Create a GitHub release and attach the archives you just generated.
+
+## New feature release
+
+* Update `WhatsNew.txt`
+
+* Bump version number to 3.EVEN.0:
+
+    * `./build-scripts/update-version.sh 3 EVEN 0`
+
+* Do the release
+
+* Immediately create a branch for patch releases, e.g. `git branch release-3.EVEN.x`
+
+* Bump version number from 3.EVEN.0 to 3.(EVEN+1).0
+
+    * `./build-scripts/update-version.sh 3 EVEN+1 0`
+
+* Update the website file include/header.inc.php to reflect the new version
+
+## New bugfix release
+
+* Bump version number from 3.Y.Z to 3.Y.(Z+1) (Y is even)
+
+    * `./build-scripts/update-version.sh 3 Y Z+1`
+
+* Do the release
+
+* Update the website file include/header.inc.php to reflect the new version
+
+## New development prerelease
+
+* Bump version number from 3.Y.Z to 3.Y.(Z+1) (Y is odd)
+
+    * `./build-scripts/update-version.sh 3 Y Z+1`
+
+* Do the release