FWIW ...
On Wed, Feb 8, 2017 at 8:22 AM, Andrew Sullivan <ajs@xxxxxxxxxxxxxxxxxx> wrote:
On Wed, Feb 08, 2017 at 01:52:00PM +0000, Alexey Melnikov wrote:
>
> Agreed. JMAP and IMAP are likely to co-exist for long time.
>
Isn't that exactly the complaint? Something like, "Long periods of
co-existence need to have lots of benefits or an existential one, or
else they're not a good idea."
Andrew didn't point this out, but since TSVAREA has been paying attention to it for the past couple of IETF cycles, the IAB does have https://datatracker.ietf.org/doc/draft-iab-protocol-transitions/ in active development.
We're finding it helpful. Your mileage may vary, of course.
Spencer