Facebook users on iOS have reported a significant visual change to the app icon following the latest software update. The iconic blue Facebook "f" logo, a staple of the app since its inception, has been replaced on some devices with a black version.

The change, which has surprised many users, appears unintentional and is likely the result of a bug introduced in the update. Facebook has not released an official statement regarding the issue, but users have taken to social media platforms like Twitter and Reddit to voice their concerns.

Several iOS users have speculated that the black icon might be related to an issue with the app's dark mode settings, which could be triggering the color change incorrectly. Others have raised concerns that the black icon might signal a broader issue with the update, potentially affecting the app's performance or functionality.

Facebook's parent company, Meta, has yet to acknowledge the issue publicly or provide guidance on how to revert to the original icon. However, some users have found that uninstalling and reinstalling the app temporarily restores the traditional blue icon, though this fix is not consistent across all devices.

The black icon issue is the latest in a series of recent glitches reported by Facebook users, including problems with the app's notifications and feed algorithms. Users are advised to watch for updates from Meta regarding a potential fix and to ensure their devices are running the latest version of iOS for optimal performance.

As the issue continues to garner attention, many users are eagerly awaiting an official response from Facebook to address the sudden and unexplained change to one of the most recognizable app icons in the digital landscape.