Announcement: pip 20.1b1 beta release

[Sumana Harihareswara]

On behalf of the PyPA, I am pleased to announce that a beta release of 
pip, pip 20.1b1, has been released.

The highlights for this release are:

* Significant speedups when building local directories, by changing 
behavior to perform in-place builds, instead of copying to temporary 
directories.
* Significant speedups in `pip list --outdated`, by parallelizing 
network access. This is the first instance of parallel code within pip's 
codebase.
* A new `pip cache` command, which makes it possible to introspect and 
manage pip's cache directory.
* Better `pip freeze` for packages installed from direct URLs, enabled 
by the implementation of PEP 610.

We would be grateful for all the testing that users could do to ensure 
that, when pip 20.1 is released, it's as solid as we can make it. You 
can upgrade to this beta with `python -m pip install -U --pre pip`.

This release also contains an alpha version of pip's next generation 
resolver. It is **off by default** because it is **unstable and not 
ready for everyday use**. If you're curious about this, please visit 
this GitHub issue about the resolver, what doesn't work yet, and what 
kind of testing would help us out https://github.com/pypa/pip/issues/8099 .

The full changelog is available. https://pip.pypa.io/en/latest/news/

As with all pip releases, a significant amount of the work was 
contributed by pip's user community. Huge thanks to all who have 
contributed, whether through code, documentation, issue reports and/or 
discussion. Your help keeps pip improving, and is hugely appreciated.

Specific thanks go to Mozilla (through its Mozilla Open Source Support 
Awards) and to the Chan Zuckerberg Initiative DAF, an advised fund of 
Silicon Valley Community Foundation, for their support that enabled the 
work on the new resolver.


-- 
Sumana Harihareswara
pip project manager under contract with Python Software Foundation
Changeset Consulting
https://changeset.nyc