Add a priority field to messages, with legal values -1, 0, 1? (Or "low", "medium", "high"?)
Probably put in the spec as "if {client, backend} doesn't support the priority, it should behave as if "medium" was specified" and require supporting "medium".
Add a priority field to messages, with legal values
-1
,0
,1
? (Or"low"
,"medium"
,"high"
?)Probably put in the spec as "if
{client, backend}
doesn't support the priority, it should behave as if"medium"
was specified" and require supporting"medium"
.