Opencv-python: OpenCV 4.2.0 has been released

[johnthagen]

OpenCV 4.2.0 was released on December 20, 2019. Could an opencv-python build of this be released?

Thanks.

[adamhrv]

Temporary solution to build 4.2.0 that also enables the new DNN CUDA options https://github.com/opencv/opencv/pull/14827#issuecomment-571102168

[skvark]

I'll make the release during this week.

[skvark]

There are issues with macOS builds (3.4 builds are failing, but master should have the same issue). Related to OpenSSL version deprecation. Qt4 might need an upgrade to Qt5 to get the builds passing.

[skvark]

This is taking longer than expected. I'm too busy with work and other stuff currently but I'll try have a look as soon as possible. 3.4 branch contains some modifications / commits which I have tried already if someone would like to have a look.

[Borda]

@skvark you are talking about 3.4 but this issue is about 4.2
So is there a chnace to have it on pip too?

[skvark]

Yes, of course. The issue is not related to OpenCV version as explained above (Qt / OpenSSL upgrade causes issues).

[skvark]

Seems like the macOS problem is solved now. multibuild had also a bug which has been now fixed. If everything looks ok after these changes I can finally make the releases.

[skvark]

4.2.0 builds are now in progress. 3.4.9 is already in PyPI.

[johnthagen]

https://pypi.org/project/opencv-python/4.2.0.32/

:tada:!

[skvark]

Please note that it takes many hours before all the wheels have been built and uploaded. I'm closing this issue now, please open a new one if you encounter any issues.