# Announcement: pip 22.2 release! **URL:** \ **Category:** Packaging\ **Created:** [July 21, 2022, 10:35am UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543 "2022-07-21T10:35:36Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![sbidoul](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/sbidoul/32/244_2.png) [@sbidoul](https://discuss.python.org/u/sbidoul)\ **Post date:** [July 21, 2022, 10:35am UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543/1 "2022-07-21T10:35:36Z")
On behalf of the PyPA, I am pleased to announce that the pip team has just released pip 22.2! > **[Client Challenge](https://pypi.org/project/pip/22.2/)** ## Highlights - Query indexes using the [PEP 691](https://peps.python.org/pep-0691/) JSON API. This works by sending a new `Accept` header, with supporting indexes responding with the new JSON format, while indexes which do not support it can continue to respond with PEP 503-compliant html. - Significantly speed up isolated build environment creation. 🐎 ## New experimental features New features have been added, about which we are seeking user feedback before declaring them stable: - A new `pip install --report` option to obtain a [detailed JSON report of what pip installed](https://pip.pypa.io/en/latest/reference/installation-report/). Together with the new `--dry-run` option and `--ignore-installed` pip can now resolve requirements without installing them. This closes the oldest pip feature request! ✨ - A new `pip inspect` command to obtain a [detailed JSON report about a Python environment](https://pip.pypa.io/en/latest/reference/inspect-report/), including the metadata of installed distributions. - Use the operating system’s trust store to verify SSL certificates, using the [truststore](https://pypi.org/project/truststore/) library. Enable with`--use-feature=truststore`. This release contains many other usability improvements, enhancements, and bugfixes. You can find the full list in our [changelog](https://pip.pypa.io/en/latest/news/#v22-2). ## Thanks 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. ---
**Author:** ![fungi](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/fungi/32/5963_2.png) [@fungi](https://discuss.python.org/u/fungi)\ **Post date:** [July 21, 2022, 8:14pm UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543/2 "2022-07-21T20:14:27Z")
We use Apache’s mod\_proxy to cache PyPI requests from our CI system so as to be conscientious consumers of the commons, and some jobs started using pip 22.2 today. This resulted in rather hard-to-identify index retrieval errors because mod\_substitute, which we use to make sure the returned indices point back to the proxy for file links, has a default limit of 1M bytes per line of content. Some indices for frequently-released projects with lots of packages like grpcio, pymongo and moto exceed that size when encoded as JSON, and because the new API returns the entire response on a single line mod\_substitute refuses to process it. Once we could find the cause, the solution was fairly straightforward (set SubstituteMaxLineLength to a larger value overriding the default), I just wanted to point this out in case anyone else experiences similar issues and is struggling to identify the root cause. Also, \>1M character lines seem like rather a lot. Should the API be chunking these up at all in order to be more convenient for proxies? ---
**Author:** ![fungi](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/fungi/32/5963_2.png) [@fungi](https://discuss.python.org/u/fungi)\ **Post date:** [July 21, 2022, 8:32pm UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543/3 "2022-07-21T20:32:00Z")
I’ve also filed [Line breaks to chunk up long PEP 691 resonses · Issue #11919 · pypi/warehouse · GitHub](https://github.com/pypi/warehouse/issues/11919) for the feature request, should anyone wish to follow up there. ---
**Author:** ![sbaack](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/sbaack/32/6708_2.png) [@sbaack](https://discuss.python.org/u/sbaack)\ **Post date:** [July 22, 2022, 3:39pm UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543/4 "2022-07-22T15:39:22Z")
> [@sbidoul](#): > > A new `pip install --report` option to obtain a [detailed JSON report of what pip installed](https://pip.pypa.io/en/latest/reference/installation-report/). Together with the new `--dry-run` option and `--ignore-installed` pip can now resolve requirements without installing them. This closes the oldest pip feature request! ✨ Nice! I’ve played with this and made a very simple tool to create pinned requirements using these new flags: [GitHub - sbaack/iso-freeze: Pin requirements using new `pip install --report`](https://github.com/sbaack/iso-freeze) ---
**Author:** ![sethmlarson](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/sethmlarson/32/1644_2.png) [@sethmlarson](https://discuss.python.org/u/sethmlarson)\ **Post date:** [July 22, 2022, 8:56pm UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543/5 "2022-07-22T20:56:46Z")
Excited to see `--use-feature=truststore` ship with pip 22.2! Looking forward to seeing how truststore fares in the wild west of “other people’s computers” 🤠 ---
**Author:** ![sbidoul](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/sbidoul/32/244_2.png) [@sbidoul](https://discuss.python.org/u/sbidoul)\ **Post date:** [July 27, 2022, 5:47pm UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543/6 "2022-07-27T17:47:05Z")
I just released 22.2.1 with a couple of bug fixes. [https://pip.pypa.io/en/stable/news/#v22-2-1](https://pip.pypa.io/en/stable/news/#v22-2-1) ---
**Author:** ![sbidoul](https://sea2.discourse-cdn.com/flex002/user_avatar/discuss.python.org/sbidoul/32/244_2.png) [@sbidoul](https://discuss.python.org/u/sbidoul)\ **Post date:** [August 3, 2022, 7:07pm UTC](https://discuss.python.org/t/announcement-pip-22-2-release/17543/7 "2022-08-03T19:07:55Z")
And 22.2.2 is out with 3 more bug fixes. [https://pip.pypa.io/en/stable/news/#v22-2-2](https://pip.pypa.io/en/stable/news/#v22-2-2)