Document verified cross-platform launcher 0.1.5 publication

AGENTS.md

@@ -182,3 +182,23 @@ socket to `135.106.154.86:25567`. See architecture and server rollout records.
 them. Inspect `git status` before staging.
 - Update this file and `docs/launcher-architecture.md` whenever the trust
 model, endpoint contract, storage layout, or release workflow changes.
+
+
+## Cross-platform release 0.1.5 (2026-09-10)
+
+Published Windows x64 EXE/MSI, macOS aarch64 and x86_64 DMG/app.tar.gz,
+and Linux x64 AppImage/DEB on https://shacraft.ru/help#launcher. The signed
+stable feed includes all platforms plus the legacy/exact Linux aliases.
+CI source b43fc610c43a9ec9f5f3ffce601de9604670ff8a, successful Actions run
+https://github.com/emil28092005/shacraft-launcher/actions/runs/34512683651.
+An initial non-Linux borrow/move compilation error in updater target selection
+was fixed before the final build. Native tests: Windows70, macOS74 per arch,
+Linux84; UI tests pass on all four runners. Local checks verify macOS bundle
+version/CPU type, Linux package identity and every artifact signature. Public
+HTTPS downloads of all eight artifacts match local SHA-256. Website418 tests
+plus48 subtests pass; only backend recreated, game containers unchanged.
+Updater signatures use the existing operator-held key, never uploaded to CI or
+server. Windows installers have no Authenticode signature; macOS is not Apple
+notarized. Native CI tests and packaging do not certify full Minecraft installs
+or desktop updater/restart behavior on Windows/macOS. Older unsupported clients
+need a manual installation of the current release. Previous releases immutable.