Features for 2.0.0 will be known after 1.1.0 is released in February 2018. We are still doing the usual time-based release process[1].
I am raising this well ahead of time because of the potential impact of removing the old Scala clients (particularly the old high-level consumer) and dropping support for Java 7. Hopefully users can then plan accordingly. We would do these changes in trunk soon after 1.1.0 is released (around February). I think it makes sense to complete some of the work that was not ready in time for 1.0.0 (Controller improvements and JBOD are two that come to mind) in 1.1.0 (January 2018) and combined with the desire to give advance notice, June 2018 was the logical choice. There is no plan to support a particular release for longer. 1.x versus 2.x is no different than 0.10.x versus 0.11.x from the perspective of supporting older releases. [1] https://cwiki.apache.org/confluence/display/KAFKA/Time+ Based+Release+Plan On Fri, Nov 10, 2017 at 11:21 AM, Jaikiran Pai <jai.forums2...@gmail.com> wrote: > Hi Ismael, > > Are there any new features other than the language specific changes that > are being planned for 2.0.0? Also, when 2.x gets released, will the 1.x > series see continued bug fixes and releases in the community or is the plan > to have one single main version that gets continuous updates and releases? > > By the way, why June 2018? :) > > -Jaikiran > > > > On 09/11/17 3:14 PM, Ismael Juma wrote: > >> Hi all, >> >> I'm starting this discussion early because of the potential impact. >> >> Kafka 1.0.0 was just released and the focus was on achieving the original >> project vision in terms of features provided while maintaining >> compatibility for the most part (i.e. we did not remove deprecated >> components like the Scala clients). >> >> This was the right decision, in my opinion, but it's time to start >> thinking >> about 2.0.0, which is an opportunity for us to remove major deprecated >> components and to benefit from Java 8 language enhancements (so that we >> can >> move faster). So, I propose the following for Kafka 2.0.0: >> >> 1. It should be released in June 2018 >> 2. The Scala clients (Consumer, SimpleConsumer, Producer, SyncProducer) >> will be removed >> 3. Java 8 or higher will be required, i.e. support for Java 7 will be >> dropped. >> >> Thoughts? >> >> Ismael >> >> >
