From d36027fb1b03e4e33c80ae21656febbe229baed6 Mon Sep 17 00:00:00 2001
From: Elio Di Nino <52972357+ElioDiNino@users.noreply.github.com>
Date: Tue, 20 Oct 2026 15:49:35 -0700
Subject: [PATCH] ci: Pin Python-dependent jobs to ubuntu-24.04

---
 .github/workflows/ci.yml          | 6 +++---
 .github/workflows/ddl-changes.yml | 2 +-
 .github/workflows/docs-pr.yml     | 2 +-
 .github/workflows/docs.yml        | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 575902643f..0c5aea8a8f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,7 +54,7 @@ jobs:
 
   linting:
     name: "pre-commit hooks" # (includes Python formatting + linting)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04 # 26.04 has no Python 3.13.12 build (.python-version); unpin when we bump Python
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -124,7 +124,7 @@ jobs:
 
   rust-linting:
     name: "Linting - Rust"
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04 # 26.04's system Python 3.14 is too new for PyO3 0.24
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -150,7 +150,7 @@ jobs:
 
   config-validation:
     name: "Dataset Config Validation"
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04 # 26.04 has no Python 3.13.12 build (.python-version); unpin when we bump Python
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
diff --git a/.github/workflows/ddl-changes.yml b/.github/workflows/ddl-changes.yml
index 6861798ecd..ee8cb4a937 100644
--- a/.github/workflows/ddl-changes.yml
+++ b/.github/workflows/ddl-changes.yml
@@ -10,7 +10,7 @@ concurrency:
 jobs:
   post_changes:
     name: Post new DDL changes from migrations
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04 # 26.04 has no Python 3.13.12 build (.python-version); unpin when we bump Python
     timeout-minutes: 10
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
diff --git a/.github/workflows/docs-pr.yml b/.github/workflows/docs-pr.yml
index 04424aaf62..4d094e9d10 100644
--- a/.github/workflows/docs-pr.yml
+++ b/.github/workflows/docs-pr.yml
@@ -10,7 +10,7 @@ concurrency:
 jobs:
   docs:
     name: Sphinx
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04 # 26.04 has no Python 3.13.12 build (.python-version); unpin when we bump Python
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 6919306cc7..8d1945779c 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -8,7 +8,7 @@ on:
 jobs:
   docs:
     name: Sphinx
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04 # 26.04 has no Python 3.13.12 build (.python-version); unpin when we bump Python
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1