I'm not seeing reports of iOS 26 installs going sideways, but I still always take these steps before making a major upgrade.

You can backup your WhatsApp data to make sure you don't lose your chats and shared photos or videos.

Revolutionary Version 9.2.1 Delivers Seamless Data Backup and Restore, Ensuring a Smooth Transition Between iOS 18 and iOS 17 UNITED SATES, July 20, 2024 ...

Owners of iPhones running on iOS 8 and earlier will soon lose the ability to use iCloud device backups, unless they update to iOS 9 or later. As a way to keep hold of your data, iCloud backups are ...