Apple Rolls Out Firmware Update for 140W USB-C Power Adapter

Apple has released firmware version 1.4.90 for its 140W USB-C Power Adapter. The company hasn’t said what changed, but the update will install automatically when the adapter is connected to a Mac or other device.

Apple has released a firmware update for its 140W USB-C Power Adapter, bringing it to version 1.4.90.

Apple did not publish release notes for the update, so it is currently unclear what the new firmware includes or fixes. According to the report, the update is delivered automatically over time when the power adapter is plugged in and connected to a Mac or another device. There is no manual installation method.

For developers and Telegram users tracking platform and accessory updates, this is a small but notable reminder that even peripherals like power adapters can receive silent firmware changes. While Apple hasn’t explained the purpose of this release, automatic firmware updates can matter for reliability, compatibility, and device behavior at the hardware level.

Source: MacRumors