Hello all,

Since we are hopefully close to release libzmq 4.2, I checked what's the
API/ABI status in CZMQ master vs 3.0.2. There are a _lot_ of ABI
breakages, and a couple of API too.

Given it's been now 2 years and 2 weeks since 3.0.0 was released and the
v2 APIs were declared DEPRECATED
( https://github.com/zeromq/czmq#toc3-8224 ), I hereby propose to
declare them RETIRED as per C4.1 process and remove them from the

I thought it would have been nice to do a bugfix release first, but
API/ABI is already broken and it would be too much pain to revert all
those changes and then put them back on.

This way we bump to major version 4.0.0 and break ABI all in one fell
swoop, and minimise disruption.

Comments, objections?

Kind regards,
Luca Boccassi

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