From e484129505895bb6e73969575ec725b4dbf089a6 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Tue, 20 Oct 2026 20:11:10 +0000
Subject: [PATCH] Upgrade CircleCI config to version 2.1

CircleCI ended support for config version 2, so pipelines have been
rejected since September. Also pin an explicit machine image, since the
image-less machine executor is deprecated.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016FeBSgbVuikN65tdn4JBnR
---
 .circleci/config.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index b8f75aaf4db..262f7f3a2d5 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,8 +1,8 @@
-version: 2
+version: 2.1
 jobs:
   minimal_core:
     machine:
-      enabled: true
+      image: ubuntu-2404:current
     steps:
     - checkout
     - run:
@@ -18,7 +18,6 @@ jobs:
     - store_artifacts:
         path: ~/junit
 workflows:
-  version: 2
   test_all:
     jobs:
     - minimal_core