v2.3 USB Mass Storage and No-Flash/RAM-only apps
Plug your Pico into your PC after(*) entering the menu, and the SD card will show up as a flash drive!
Apps compiled with the pico-sdk no-flash attribute will be run directly from RAM without affecting the app loaded into the flash. Good for small utilities!
Both the bootloader and the UI need to be installed when upgrading to this version.
(* Not kidding, start the menu before inserting the cable, or things will not work. You have been warned!)