[services, hailtop] shift supported python versions from 3.10-13 to 3.12-14 by cjllanwarne · Pull Request #15603 · hail-is/hail

cjllanwarne · 2026-07-20T19:21:54Z

Change Description

Updates the default python version to 3.12 and shifts the list of supported versions to 3.12, 3.13, 3.14 to realign with the numpy's supported versions.

Update: 3.11 will NOT continue to be supported. EMR has been shown to work ok with 3.12 and numpy support has already expired on 3.11.

Security Assessment

Delete all except the correct answer:

This change potentially impacts the Hail Batch instance as deployed by Broad Institute in GCP

Impact Rating

This change has a low security impact

Impact Description

Python version updates in services and client libraries.

Appsec Review

Required: The impact has been assessed and approved by appsec

chrisvittal

If we're dropping 3.11, you can change the lockfile generation to 3.12 and regenerate those too.

Nice catch, now updated

sarahgibs

thank you!

chrisvittal

Escaping changes look good. I caught 1 thing in the docs.

chrisvittal · 2026-08-04T18:30:08Z

+
+- **`hail/python/hail/__init__.py`** has a runtime `version_info < (3, XY)` guard at import time. It must match `python_requires` in `setup.py` / `setup-hailtop.py`. Easy to miss because it's in the package `__init__` rather than near any build or setup file.
+
+- **EMR consideration**: EMR 7.x ships Python 3.11 and upgrades slowly. Before dropping 3.11 support in a future bump, check current EMR release notes — keeping a non-default 3.11 client image is low cost and avoids breaking EMR users.


I think this is now out of date.

Indeed, thank you! Now removed

updated

…-13 to 3.12-14" (#15660) Reverts #15603 We need 3.11 to support our current dataproc (and spark) version. I will follow up with a PR to do 90% of this again, but keeping 3.11 for now.

…0-13 to 3.12-14" (hail-is#15663) Reverts hail-is#15660; restores the changes in hail-is#15603. Should be ready to merge again after the dataproc update (hail-is#15662) --- ## Change Description Updates the default python version to 3.12 and shifts the list of supported versions to 3.12, 3.13, 3.14 to realign with the numpy's supported versions. Update: 3.11 will NOT continue to be supported. EMR has been shown to work ok with 3.12 and numpy support has already expired on 3.11. ## Security Assessment Delete all except the correct answer: - This change potentially impacts the Hail Batch instance as deployed by Broad Institute in GCP ### Impact Rating - This change has a low security impact ### Impact Description Python version updates in services and client libraries. ### Appsec Review - [ ] Required: The impact has been assessed and approved by appsec

….12-14 (hail-is#15603) ## Change Description Updates the default python version to 3.12 and shifts the list of supported versions to 3.12, 3.13, 3.14 to realign with the numpy's supported versions. Update: 3.11 will NOT continue to be supported. EMR has been shown to work ok with 3.12 and numpy support has already expired on 3.11. ## Security Assessment Delete all except the correct answer: - This change potentially impacts the Hail Batch instance as deployed by Broad Institute in GCP ### Impact Rating - This change has a low security impact ### Impact Description Python version updates in services and client libraries. ### Appsec Review - [x] Required: The impact has been assessed and approved by appsec

…-13 to 3.12-14" (hail-is#15660) Reverts hail-is#15603 We need 3.11 to support our current dataproc (and spark) version. I will follow up with a PR to do 90% of this again, but keeping 3.11 for now.