[sleepless]

Probably the important part of the announcement is:

Four of the major functionalities missing in the first official release of macOS Sonoma are:

    Entire message data is not always passed to the extension making processing the encrypted message impossible
    Reliably encrypted drafts
    Support for setting the default state of the sign and encrypt button in compose windows which can lead to dangerous side-effects
    Sign and encrypt button could go out of sync with internal state, if keyring changes are detected

Really hope this will be added to the API.