3545 Honor, and scrub, the 1.0 compatibility promise (cla: yes, p: android_intent, p: connectivity, p: device_info, p: package_info, p: path_provider, p: sensors, p: share, p: shared_preferences, p: url_launcher, p: video_player, platform-linux, platform-macos, platform-web, platform-windows)

3564 [shared_preferences] Migrate examples to NNBD (cla: yes, nnbd, p: shared_preferences, platform-linux, platform-macos, platform-windows)

3565 [shared_preferences] fix crash when list type is dynaimc (cla: yes, nnbd, p: shared_preferences, waiting for tree to go green)

3586 [shared_preferences] Bump version for NNBD stable (cla: yes, nnbd, p: shared_preferences)