[OTR-dev] version 3 instances

[Ian Goldberg]

On Wed, Dec 03, 2014 at 05:49:57PM +0100, Hannes Mehnert wrote:
> Hi,
> 
> in a XMPP setup - is there any use to have multiple OTR sessions (with
> different instances) between a at b.c/xxx and b at b.c/yyy? I can't think of
> a scenario where a single OTR session between two (full!) jabber IDs
> is not sufficient. It clearly makes sense to have multiple sessions if
> a and/or b are logged in several times (using different resources,
> a at b.c/xxy, ...).
> 
> Any thoughts? Did I miss a FAQ/some other text about that?

OTRv3's instances are indeed intended to accomplish a similar goal to
XMPP's resources, but without requiring the IM client/protocol to
natively know anything about them.  This allows OTR over other IM
protocols to not go insane (as was the case with OTRv2) when someone
logs in more than once.