Module Update (rfc7950#section-11)

[boucadair]

From Ladislav Lhotka (ladislav.lhotka@nic.cz)

"I have actually always thought that the section "Updating a Module" should never have become part of the YANG language definition. A sensible approach could IMO be to move this section to 8407bis, and relax the requirements to SHOULD there."

From Rob:

rfc7950#section-11

Otherwise, if the semantics of any previous definition are changed
(i.e., if a non-editorial change is made to any definition other than
those specifically allowed above), then this MUST be achieved by a
new definition with a new identifier.

to

Otherwise, if the semantics of any previous definition are changed
(i.e., if a non-editorial change is made to any definition other than
those specifically allowed above), then this SHOULD be achieved by a
new definition with a new identifier.