+1
> Am 28.07.2017 um 16:03 schrieb Stephan Ewen <se...@apache.org>:
>
> Seems like no one raised a concern so far about dropping the savepoint format
> compatibility for 1.1 in 1.4.
>
> Leaving this thread open for some more days, but from the sentiment, it seems
> like we should go ahead?
>
> On Wed, Jul 12, 2017 at 4:43 PM, Stephan Ewen <se...@apache.org
> <mailto:se...@apache.org>> wrote:
> Hi users!
>
> Flink currently maintains backwards compatibility for savepoint formats,
> which means that savepoints taken with Flink version 1.1.x and 1.2.x can be
> resumed in Flink 1.3.x
>
> We are discussing how many versions back to support. The proposition is the
> following:
>
> Suggestion: Flink 1.4.0 will be able to resume savepoints taken with
> version 1.3.x and 1.2.x, but not savepoints from version 1.1.x and 1.0.x
>
>
> The reason for that is that there is a lot of code mapping between the
> completely different legacy format (1.1.x, not re-scalable) and the
> key-group-oriented format (1.2.x onwards, re-scalable). It would greatly help
> the development of state and checkpointing features to drop that old code.
>
> Please let us know if you have concerns about that.
>
> Best,
> Stephan
>
>
