You can download iOS 15.6 & iPadOS 15.6 IPSW firmware files for all devices from this page. This firmware file can be restored with iTunes if and only if it is still being signed by the time you download. Note that our website provides firmware directly from Apple's server using the ipsw. me API.
IPSW, iPhone Software, is a file format used to install iOS, iPadOS, tvOS, HomePod, and most recently, macOS firmware for devices equipped with Apple silicon.
You can check this post to get the correct firmware identifier for your iDevices.
iOS 15.6 Release notes
iOS 15.6 includes the following improvements and bug fixes:
- TV app adds the option to restart a live sports game already in progress and pause, rewind, or fast-forward
- Fixes an issue where Settings may continue to display that device storage is full even if it is available
- Fixes an issue that may cause braille devices to slow down or stop responding when navigating text in Mail
- Fixes an issue in Safari where a tab may revert back to a previous page
Some features may not be available for all regions or on all Apple devices. For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222