zdnet.com/…/twitter-rolls-out-encryption-for-dire…

Twitter rolls out encryption for direct messages but with key limitations

Both the sender and recipient must be verified, while group conversations and attached media aren’t supported by the encryption.

For an existing chat, tap the Info icon. If the option is available, you’ll see a button for Start an encrypted message that you can just click. For a new chat, turn on the switch to enable encrypted mode. Write your message, and then send it.

So what is the difference between what they’re rolling out and what they added in 2023? Support for more users, maybe?