If you are asking what does the ios 14.5 update do ?
You should have received a notification telling you that iOS 14.5 is available and offering to download the update. You can also perform a manual installation.
iOS 14.5 is compatible with all devices that are already using iOS 14.
- Use Face ID to unlock your iPhone
- Over 210 new emojis
- Choose your default music streaming service
- Application transparency
- Support for 5G dual SIM
- Support for PS5 controllers
- Update Siri