Docs: alt-tab known issue in the v0.6.0 notes; README macOS bullet (download exists)

.github/release-notes.md

@@ -138,6 +138,7 @@ Full steps, controls and troubleshooting are in the bundled `README.md`.
 | On the Steam Deck at 90 fps, firefights in the centre of Bunker 1 and 2 can drop several fps | Performance, Deck only | Set the frame cap to 60 for those levels |
 | Jungle can feel slightly less smooth at 90 fps than other levels | Feel | Frame cap 60 |
 | Cradle's turret explosions may draw wrongly | Cosmetic; reported, not yet investigated | None |
+| After alt-tabbing away, the picture can look hazy until it settles; fast repeated alt-tab is wonkier and takes longer | Cosmetic, Windows | It recovers on its own; alt-tab again or give it a couple of seconds |
 | macOS (Apple Silicon) is experimental, tested on one Mac, and not notarized | Platform | Run `xattr -dr com.apple.quarantine <folder>` before the first launch; reports welcome |
 | PAL and JP ROMs aren't supported in release packages | NTSC-U only | Use an NTSC-U ROM. Both regions convert, build and boot from source; packaging is still open |
 | Changing aspect ratio inside a level can briefly glitch the gun/hand model, rarely | Cosmetic, one-off | Change the ratio from the front-end PC Options, or accept it |

README.md

@@ -58,9 +58,12 @@ project is as much a study of that process as it is a port. See
     display, and the *Original N64* preset caps at 60. This is a rework of
     f1zz1ec0ke's #137. I checked 120 Hz with VSync on a G-Sync display
     on PC and 90 fps on the Steam Deck.
-  - **macOS on Apple Silicon, experimental, build from source.** Based on
-    danturn's #95 (with Julio C. Rocha's earlier Intel groundwork in
-    #88). There is no macOS download. See [Building](docs/building.md).
+  - **macOS on Apple Silicon (experimental).** There is now a `macos-arm64`
+    download (or build from source; see [Building](docs/building.md)). Based
+    on danturn's #95 (with Julio C. Rocha's earlier Intel groundwork in
+    #88). A campaign sweep and live sessions ran without crashes on one M3
+    Mac; the download is not notarized, so see [macOS](#macos-apple-silicon-experimental)
+    for the one-line unblock. Test reports are very welcome.
   - **Fixes:** geometry vanishing when you press against a wall (#150),
     the first launch opening on the wrong monitor (#151), a Linux crash in the
     end credits (#152), a crash when a guard spawns with a hat (#153), a