[zeromq-dev] 0MQ/3.1

Lucas Hope lucas.r.hope at gmail.com
Tue Nov 8 10:13:25 CET 2011

As a quiet, reasonably busy, solo user of 2.1 in several projects, I was
thinking I was doomed to run legacy 2.1 for a long time, since the burden
of changing the codebase to 3.0 is much greater than the benefit to me of
3.0 features.

Option 2 makes me happy that I could progress some time without massive

So I'm another voice for Option 2.

Thanks very much for your openness here and in general.



On Tue, Nov 8, 2011 at 10:17 AM, Pieter Hintjens <ph at imatix.com> wrote:

> On Tue, Nov 8, 2011 at 1:51 AM, Martin Sustrik <sustrik at 250bpm.com> wrote:
> > It's up to Pieter whether he wants to maintain 3-0 further.
> > Pieter, what do you think?
> /me was expecting this to bounce back to me. I'm going to bounce this
> back to the community since the only rationale for maintaining a
> version is that there are people who need that version.
> So let's take a vote. These are the options I can see, please choose
> one and argue / vent as you like:
> Option 1: maintain 3.0 through to stable, eventually deprecate 2.1 and
> then start packaging 3.1 as alpha. Pros: it's consistent and gives the
> impression we know what we're doing. Cons: it's insane because 3.1
> speaks its own wire protocol incompatible with previous and following
> versions.
> Option 2: deprecate 3.0 now, and start packaging 3.1 as alpha. Since
> it's wire compatible with 2.1, people can test it immediately and we
> should be able to push it through to maturity rapidly. Pros: simplest.
> Cons: anyone using 3.0 in real life is kind of screwed.
> Option 3: remove labels from 3.0 and make it wire-compatible with 2.1
> and 3.1. Continue with current release planning. Pros: gives us the
> release story we should have had from the start IMO. Cons: not sure if
> it's even possible.
> -Pieter
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Dr Lucas Hope - lucas.r.hope at skype
Machine Learning and Software Engineering Consultant
Melbourne, Australia
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