[JMAP] Re: WGLC: please review the final state of the JSCalendar/JMAP Calendars drafts

[Neil Jenkins <[e-mail]>]

(Posting this again, as I forgot to include the calext list as well last time; apologies for the duplication for those on JMAP list too.)

On Sat, 26 Sep 2026, at 06:35, Ben Bucksch wrote:
> However, the concern from last year regarding who processes the incoming invitation and who adds the event to the calendar is still open. The spec does not clearly define whether it's the client or server

I don't believe *this* spec needs to say anything about this. Clients that handle mail as well as calendars should just compare the state of the event on the server with the iTIP message they have. If the server updated the calendar automatically, the change will already have been applied (the "sequence" number will be > than that in the iTIP message, or the "updated" time will be >= that in the iTIP message if the sequence numbers are the same). If the server hasn't applied it, the client can offer to update the calendar if the user chooses.

Any deep change to scheduling should be a separate document (and we could do so much better — I'd love to move away from using emails to distribute anything beyond the initial invitation to an event; after that, we should use a per-event web hook to push updates to all participants securely and reliably). But that's a whole separate thing.

Regards,
Neil