Android Q will include new cryptography software called Adiantum, which allows any device to keep user data encrypted, something that previously required cryptographic acceleration hardware.
Google also announced that “all compatible Android devices newly launching with Android Q are required to encrypt user data, with no exceptions”.
The policy seems to exempt devices that launched with an earlier version of Android but are upgraded to Q. Encrypting user data keeps data on the phone from being accessed when a device is lost or stolen, for example. Google is also making TLS 1.3 standard in Android Q. TLS 1.3 offers faster, more secure protection for network connections, compared to TLS 1.2.