Hi all,

In the meantime, September went by .. :) (as usual with 1.0 targets) See also https://github.com/pandas-dev/pandas/issues/17287

But on a more serious note: if we want to get a 1.0 out in the somewhat near future, I think we should do some planning for it / make decisions on what are blockers / organize some effort towards them (right now, I don't have the feeling there is much (coordinated) effort to get closer to 1.0, also from my side to be clear).

The initial idea was to remove all deprecations from pre 0.25

Do we still want to do this? (I would say yes; according to our policy they otherwise need to stay until 2.0; we can of course update our versioning policy)
Is this a blocker? (probably not each and every one of them; but having done a majority of them might be? Or certain specific ones like .ix might be?)
Is there a way we can do some coordinated effort on this? Or try to get more contributions in this area?

In the meantime, also some specific features / improvements have been discussed that might want to get into 1.0. Are those blockers?

The missing values discussion.
Given my personal involvement, I would like to see some basics of it in 1.0 (so the new StringArray can also already start using it). But it's also something that will take time to implement, so maybe that will get tight.
The block-wise ops performance improvement. Is this still targetted for 1.0?
Some API breaks we we still want to do in 1.0?
There are several ExtensionArray related ones (eg the return value of .astype(..)) that might be nice.
See also the github milestone: https://github.com/pandas-dev/pandas/milestone/16
... ?

Is the website and docs redesign a blocker?

To what extent do we want to delay for some of the blockers above?

What are our current ideas for a timeline? The gihub milestone is saying December 1, but I don't think that is realistic.

Joris

On Wed, 17 Jul 2019 at 00:55, Joris Van den Bossche <jorisvandenbossche@gmail.com> wrote:

Hi all,

We had some discussion about this on the in-person dev sprint end of June, and I thought it would be good to have some public record of this as well.

A pandas 0.25.0 release is close (the RC was released earlier this month), see https://github.com/pandas-dev/pandas/issues/24950

For pandas 1.0, the current plan is to finally "just do it". The idea is that it should not take too long after 0.25.0, without additional major API changes (additions are fine of course) but with removing the current deprecated functionalities.
Depending on how much feedback there is on 0.25.0 and on how smoothly it goes for removing deprecated stuff, we could (maybe optimistically) target September for that.

Comments certainly welcome!

Joris