RLS: 1.4.2

[simonjayhawkins]

Tracking issue for the 1.4.2 release.

https://github.com/pandas-dev/pandas/milestone/94

Currently scheduled for March 05, 2022.

This is 3 weeks from today assuming a release schedule of 3-3-4-5-6 weeks for 1.4.1 through 1.4.5.

List of open regressions: https://github.com/pandas-dev/pandas/issues?q=is%3Aopen+is%3Aissue+label%3ARegression

cc @pandas-dev/pandas-core @pandas-dev/pandas-triage

[simonjayhawkins]

I'm not sure that the quantity of fixes in 1.4.2 currently warrant a release yet.

[jreback]

sure let's wait a bit

[simonjayhawkins]

There is a few more fixes since I last commented here. Any objections to releasing this weekend?

[jreback]

ok for release @simonjayhawkins

[simonjayhawkins]

i've closed off 1.4.2 to new additions and opened https://github.com/pandas-dev/pandas/milestone/95 for 1.4.3, currently schedule for 4 weeks from tomorrow, April 30, 2022

[simonjayhawkins]

it looks like nightlies are failing for all wheels on main and also for 1.4.x on macOS for test_pickle_frame_v124_unpickle_130 (which also fails on main so it is not down to a PR on main not backported to 1.4.x)

wheels don't build if tests fail, so may need to skip that test, or will hold off release if someone gets a chance to investigate (I have a few more things to do tonight to prep so probably won't get chance to investigate that today)

cc @lithomas1

[simonjayhawkins]

(I have a few more things to do tonight to prep so probably won't get chance to investigate that today)

and more importantly not a mac user so unlikely to get far investigating anyway.

[simonjayhawkins]

The problematic filename is empty_frame_v1_2_4-GH#42345.pkl. maybe the hash is an issue on macOS?

have we changed the sdist build recently?

[simonjayhawkins]

have we changed the sdist build recently?

what has changed in pandas-wheels is that setuptools has been pinned pip install "setuptools<60" in MacPython/pandas-wheels#177

@lithomas1 this was done to get the nightlies to green so I guess not likely the issue?

[simonjayhawkins]

it looks like nightlies are failing for all wheels on main

this is not related to the 1.4.x release but it looks like the last successful nightly build was 23rd March and the changes to test_bytes_exceed_2gb which are not failing on 1.4.x were before that in #46261. cc @mroeschke

[simonjayhawkins]

this is not related to the 1.4.x release but it looks like the last successful nightly build was 23rd March and the changes to test_bytes_exceed_2gb which are not failing on 1.4.x were before that in #46261. cc @mroeschke

forget that, the green builds on 23rd were not from main, Last green build from main was Feb 17, with no logs till March 3, so could be related to #46261

[simonjayhawkins]

OK looks good to start release tomorrow morning (UK time)

[simonjayhawkins]

release checklist for commit 8fab03d

• wheels building [DO NOT MERGE] test wheel build status of 1.4.x branch MacPython/pandas-wheels#173
• release readiness passing https://github.com/simonjayhawkins/pandas-release/actions?query=workflow%3A%22Tag+Release%22
• release notes checked https://pandas.pydata.org/pandas-docs/dev/whatsnew/v1.4.2.html
• ci checks https://github.com/pandas-dev/pandas/commits/1.4.x
• no manual backports outstanding https://github.com/pandas-dev/pandas/pulls?q=is%3Apr+label%3A%22Still+Needs+Manual+Backport%22+is%3Aclosed
• no open issues/PRs (except this one) https://github.com/pandas-dev/pandas/milestone/94