[Numpy-discussion] NumPy EOL Versions?

Charles R Harris charlesr.harris at gmail.com
Wed Jan 13 12:47:53 EST 2021

On Wed, Jan 13, 2021 at 9:04 AM Ralf Gommers <ralf.gommers at gmail.com> wrote:

> On Wed, Jan 13, 2021 at 4:41 PM Matti Picus <matti.picus at gmail.com> wrote:
>> This message ended up in my spam box for some reason, sorry for the late
>> reply.
>> We typically release a new version twice a year, and support two
>> versions at a time. So right now we are releasing version 1.20 and will
>> support 1.19 and 1.20 for the next period. When 1.21 is released, we
>> will support 1.20 and 1.21. Support for the released version is limited
>> to bug fixes.
> Is this two-version thing actually something we're committed to doing?
> Chuck started doing it at some point, which as release manager is his
> decision - but I don't think we ever really decided or announced this as a
> policy.
> If we're committed to it, we should probably mention it somewhere in the
> docs or release how-to. And I should go update our Tidelift data.
> Cheers,
> Ralf
> We only support *one* version at a time. Supporting two is hard,
backports become difficult. The only time we have supported two was the
1.16.x LTS release. At the moment things are a bit different because we are
waiting on pyarrow before releasing 1.20.0, it is a temporary measure.

The binannual release cycle is because 300-500 merges per release felt
about right. If the merge rate goes way up and stays there we may release
more often. But that is unlikely unless we get a lot more support.

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