What
When switching from beta/preview to stable channel, users now see a dialog if the stable version is older.
Details
- Prompts when stable version is lower than current version
- Options: "Allow downgrade to stable version" or "Stay on current version until stable catches up"
- Prevents accidental version downgrades
Evidence
L59() at line 489041 (contains "Switch to Stable Channel", "Allow downgrade to stable version")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.