update

README.md

@@ -16,9 +16,9 @@ interactive menu. Update availability is checked in the background and cached;
 updates are installed only when explicitly selected or requested with
 `tapm update`.
 
-Use `tapm V2` to switch an installed copy to the published V2 branch for
-testing, and `tapm main` to switch it back. The command refuses to switch when
-local changes, local-only commits, or diverged branch history would be at risk.
+When testing this branch, use `tapm main` to switch the installed copy back to
+the published main branch. The command refuses to switch when local changes,
+local-only commits, or diverged branch history would be at risk.
 
 The required iDSSYS Defaults repository is handled separately: it is
 automatically refreshed before launch when its last successful check is more

run.sh

@@ -270,7 +270,7 @@ case "${1:-}" in
 		INSTALL_UPDATES
 		exit $?
 		;;
-	main|V[0-9]*)
+	main)
 		SWITCH_TAPM_BRANCH "$1"
 		exit $?
 		;;