PyMongo 4.17.0

Community notes

What's Changed

• refactor(ci): replace shell=True and awk pipes with native Python by @RinZ27 in #2671
• PYTHON-5697 - Migrate 8.0+ tests to Windows 2022 by @NoahStapp in #2681
• [Spec Resync] 01-19-2026 by @mongodb-drivers-pr-bot[bot] in #2680
• Bump pyright from 1.1.407 to 1.1.408 by @dependabot[bot] in #2675
• PYTHON-5692 - [Infrastructure] Improve dependabot version updates by @NoahStapp in #2682
• PYTHON-5605 - Drop usage of Ubuntu 20 by @NoahStapp in #2683
• PYTHON-5699 & PYTHON-5698 [Spec Resync] 01-26-2026 by @mongodb-drivers-pr-bot[bot] in #2685
• PYTHON-5703 Use Ubuntu24 for AWS Auth tests by @blink1073 in #2686
• PYTHON-5704 Skip free-threading for enterprise auth builds by @blink1073 in #2687
• Bump astral-sh/setup-uv from 7.1.6 to 7.2.0 in the actions group across 1 directory by @dependabot[bot] in #2684
• Bump peter-evans/create-pull-request from 8.0.0 to 8.1.0 in the actions group by @dependabot[bot] in #2692
• PYTHON-1357 - Refactor Cursor and CommandCursor by @NoahStapp in #2691
• [Spec Resync] 02-02-2026 by @mongodb-drivers-pr-bot[bot] in #2694
• PYTHON-5467 Add codecov integration by @blink1073 in #2690
• Bump astral-sh/setup-uv from 7.2.0 to 7.2.1 in the actions group by @dependabot[bot] in #2700
• PYTHON-XXXX Fixed typo in Running Tests Locally section. by @caseyclements in #2698
• PYTHON-5467 Fix codecov upload by @blink1073 in #2701
• PYTHON-5467 Fix codecov upload on Evergreen by @blink1073 in #2702
• PYTHON-5715 Add appName to OIDC test failpoints by @blink1073 in #2697
• PYTHON-5705 Improve fallback for PyOpenSSL windows system certs loading by @blink1073 in #2688
• PYTHON-3898 Add coverage to all variants by @blink1073 in #2705
• PYTHON-5729 Pin setuptools when using older gevent by @blink1073 in #2708
• Bump the actions group with 2 updates by @dependabot[bot] in #2711
• PYTHON-5708 Temporarily skip some BSON encryption tests by @blink1073 in #2709
• PYTHON-5732 Use mongodb-runner in Evergreen Tests by @blink1073 in #2703
• PYTHON-5731 - Server selection deprioritization only for overload errors on replica sets by @NoahStapp in #2710
• PYTHON-5737 - BSON encoding/decoding performance improvements by @NoahStapp in #2715
• [Spec Resync] 03-02-2026 by @mongodb-drivers-pr-bot[bot] in #2716
• Python 4542 - Improved sessions API by @NoahStapp in #2712
• PYTHON-5742 - Add Copilot instructions by @NoahStapp in #2717
• PYTHON-5747 Add jira link to spec resync PR by @sleepyStick in #2723
• PYTHON-5114 Test suite reduce killAllSessions calls by @ShaneHarvey in #2721
• PYTHON-5748 Remove unused SpecRunner class by @ShaneHarvey in #2725
• PYTHON-5754 Fix USE_ACTIVE_VENV support by @aclark4life in #2728
• PYTHON-5753 Add just recipes for running coverage tests locally by @aclark4life in #2727
• PYTHON-5758 Remove unused validation functions by @aclark4life in #2733
• PYTHON-5757 Deprecate Python 2 methods in SON by @aclark4life in #2732
• PYTHON-5766 Add codecov badge to readme by @aclark4life in #2737
• Bump the actions group across 1 directory with 4 updates by @dependabot[bot] in #2736
• [Spec Resync] 03-30-2026 by @mongodb-drivers-pr-bot[bot] in #2741
• Bump astral-sh/setup-uv from 7.3.0 to 7.6.0 in the actions group by @dependabot[bot] in #2740
• PYTHON-5401: Add AI Generated Contributions Policy by @Jibola in #2696
• PYTHON-5768 Add AGENTS.md w/copilot instructions by @aclark4life in #2744
• PYTHON-5791 - test_list_database_names should not check ordering by @NoahStapp in #2751
• PYTHON-5668 - Merge backpressure branch into mainline by @NoahStapp in #2729
• PYTHON-5795 Fix absolute link to CONTRIBUTING.md in README.md by @aclark4life in #2756
• PYTHON-5760 Increase _azure_helpers.py coverage by @aclark4life in #2747
• PYTHON-5772 Increase _gcp_helpers.py coverage by @aclark4life in #2749
• Revert "PYTHON-5768 Add AGENTS.md w/copilot instructions" (#2744) by @Copilot in #2754
• PYTHON-5794 - Add prose tests to verify correct retry behavior when a… by @NoahStapp in #2755
• PYTHON-5797 - Add IWM and Overload Error links to changelog by @NoahStapp in #2757
• PYTHON-5800 - Simple collation is included in index information by @NoahStapp in #2761
• PYTHON-5798 - Overload retargeting prose tests do not ensure that sec… by @NoahStapp in #2760
• PYTHON-5801 - Update changelog for 4.17 release by @NoahStapp in #2762

New Contributors

• @Copilot made their first contribution in #2754

Full Changelog: 4.16.0...4.17.0