From 0294b98ee542d5cfbd8ca2f03dc7117fc02cb3eb Mon Sep 17 00:00:00 2001
From: Ruihang Lai <ruihangl@cs.cmu.edu>
Date: Mon, 9 Mar 2026 10:54:52 -0400
Subject: [PATCH] [Build] Fix version regex to anchor at line start in
 pyproject.toml

Add ^ anchor to the version regex so it matches only the top-level
`version = "..."` instead of all three occurrences, which caused
hit_count == 3 and a RuntimeError in sync_version.
---
 version.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/version.py b/version.py
index ee7d0cdb5554..fc9d4449c31d 100644
--- a/version.py
+++ b/version.py
@@ -180,7 +180,7 @@ def sync_version(pub_ver, local_ver, dry_run):
     # pyproject.toml
     update(
         os.path.join(PROJ_ROOT, "pyproject.toml"),
-        r"(?<=version = \")[.0-9a-z\+]+",
+        r"(?<=^version = \")[.0-9a-z\+]+",
         pub_ver,
         dry_run,
     )