From aa0127adb657257f487aeb9cc6e2280cecf15e71 Mon Sep 17 00:00:00 2001
From: Ghraven <115199279+Ghraven@users.noreply.github.com>
Date: Wed, 20 May 2026 18:53:45 +0000
Subject: [PATCH] fix(tracking): replace deprecated datetime.utcnow() in S3
 time partition

_get_time_partition() used datetime.datetime.utcnow(), which is
deprecated in Python 3.12+ and returns a naive datetime. Switched to
datetime.now(timezone.utc).replace(tzinfo=None), which is timezone-aware
at the source and produces a byte-identical isoformat() string (no
+00:00 suffix), so the existing S3 prefix slicing is unchanged.
---
 burr/tracking/s3client.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/burr/tracking/s3client.py b/burr/tracking/s3client.py
index 561d517af..575cd393b 100644
--- a/burr/tracking/s3client.py
+++ b/burr/tracking/s3client.py
@@ -204,7 +204,7 @@ def __init__(
         self.stream_state: Dict[StateKey, StreamState] = dict()
 
     def _get_time_partition(self):
-        time = datetime.datetime.utcnow().isoformat()
+        time = datetime.datetime.now(datetime.timezone.utc).replace(tzinfo=None).isoformat()
         return [time[:4], time[5:7], time[8:10], time[11:13], time[14:]]
 
     def get_prefix(self):