In the 4th update, Apple released 10M3761 firmware for MagSafe charger
Thanks to CTOnews.com netizen Dest1n for the clue delivery! CTOnews.com May 3, Apple today released firmware updates for the MagSafe charger in addition to iOS / iPadOS 16.5 Beta 4 and macOS 13.4 Beta 4 updates.
Apple today released a new firmware for the MagSafe charger. The updated firmware version is 10M3761, which is higher than the previous 10M1821 firmware.
After the update, the user can see the version number upgraded from 255.0.0.0 to 258.0.0.0 in the Settings application.
CTOnews.com note: Apple launched the MagSafe charger in the fall of 2020, the fourth firmware update since the accessory was launched.
Because firmware updates are released quietly wirelessly, Apple does not provide release instructions. We don't know what new features or bug fixes may be included in the software.