Apple Releases Firmware Update for 140W USB-C Power Adapter

MacRumors
By Joe RossignolSep 8, 2026, 4:35 pm128 ptsTrending
Apple today released a firmware update (version 1.4.90) for its 140W USB-C Power Adapter. It is unclear what is included in the latest firmware, as Apple does not publish release notes for this. The update will be installed automatically over time when the power adapter is plugged in and connected to a Mac or…

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