Mystery Update: Apple's MagSafe Charger Receives New Firmware Version 2A146

Apple has released a firmware update for its MagSafe charger, bringing the version to 2A146 from the previous 2A143. The update installs automatically when the charger is in use and connected to power, with no user notifications or release notes provided. While the specific changes are unclear, the update likely includes bug fixes or quality-of-life improvements. Firmware updates for accessories like the MagSafe charger help detect connected devices and negotiate charging speeds. In 2024, Apple released an improved MagSafe charger that supports 25W wireless fast charging on the iPhone 16 range, compatible with iPhone 12 and later models except the budget-friendly iPhone 16e.