Here's how to keep your stuff up-to-date:
- iPhones and iPads: https://support.apple.com/en-us/HT204204
- Android Devices: https://support.google.com/android/answer/7680439?hl=en
- MACs: https://support.apple.com/en-us/HT201541
- PCs: https://support.microsoft.com/en-us/windows/update-windows-3c5ae7fc-9fb6-9af1-1984-b5e0412c556a