From 14a1e7a1a0c45b72fa7a7f44d758cdcafb2adcf6 Mon Sep 17 00:00:00 2001
From: sepehrrasooli <sepehrrasouli06@gmail.com>
Date: Tue, 12 May 2026 12:43:38 +0330
Subject: [PATCH 1/4] Compare pyenv.cfg version field with  sys.version_info
 and emit a RuntimeWarning on minor-version mismatch.

---
 Lib/site.py | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Lib/site.py b/Lib/site.py
index cb1108dbaf1f81..e6f6a19290c09c 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -796,6 +796,7 @@ def venv(known_paths):
     if candidate_conf:
         virtual_conf = candidate_conf
         system_site = "true"
+        version = None
         # Issue 25185: Use UTF-8, as that's what the venv module uses when
         # writing the file.
         with open(virtual_conf, encoding='utf-8') as f:
@@ -808,6 +809,28 @@ def venv(known_paths):
                         system_site = value.lower()
                     elif key == 'home':
                         sys._home = value
+                    elif key == 'version':
+                        version = value
+        
+        if version:
+            try:
+                major, minor = map(int, version.split(".")[:2])
+            except ValueError:
+                major, minor = None
+            
+            if (
+                major == sys.version_info.major
+                and minor is not None
+                and minor != sys.version_info.minor
+                and not hasattr(sys, "_venv_version_warning_emitted")
+            ):
+                _warn(
+                    f"This virtual environment was created for Python {major}.{minor}, "
+                    f"but the current interpreter is Python "
+                    f"{sys.version_info.major}.{sys.version_info.minor}. "
+                    "Consider running `python -m venv --upgrade` to update the environment.",
+                    RuntimeWarning,
+                )
 
         if sys.prefix != site_prefix:
             _warn(f'Unexpected value in sys.prefix, expected {site_prefix}, got {sys.prefix}', RuntimeWarning)

From 1bca0c8aa0962f02a10524c7bd24ff8ffc79d45a Mon Sep 17 00:00:00 2001
From: sepehrrasooli <sepehrrasouli06@gmail.com>
Date: Tue, 12 May 2026 12:49:47 +0330
Subject: [PATCH 2/4] Add news entry

---
 .../2026-05-12-12-49-30.gh-issue-127727.hNmj9G.rst             | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Core_and_Builtins/2026-05-12-12-49-30.gh-issue-127727.hNmj9G.rst

diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-05-12-12-49-30.gh-issue-127727.hNmj9G.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-05-12-12-49-30.gh-issue-127727.hNmj9G.rst
new file mode 100644
index 00000000000000..474ae434f6885e
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2026-05-12-12-49-30.gh-issue-127727.hNmj9G.rst
@@ -0,0 +1,3 @@
+Warn when running a virtual environment created for a different minor Python
+version than the current interpreter, and suggest using ``python -m venv
+--upgrade``.

From 5d0238f7454d6ee33a591afadc331b48c54f96cd Mon Sep 17 00:00:00 2001
From: sepehrrasooli <sepehrrasouli06@gmail.com>
Date: Tue, 12 May 2026 15:11:42 +0330
Subject: [PATCH 3/4] Fix linting issues

---
 Lib/site.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/site.py b/Lib/site.py
index e6f6a19290c09c..b83b3d1252d4a6 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -811,7 +811,7 @@ def venv(known_paths):
                         sys._home = value
                     elif key == 'version':
                         version = value
-        
+
         if version:
             try:
                 major, minor = map(int, version.split(".")[:2])

From 64a8f28ae29bc77b90fa5bc33f832e4c5ecfba71 Mon Sep 17 00:00:00 2001
From: sepehrrasooli <sepehrrasouli06@gmail.com>
Date: Tue, 12 May 2026 15:13:32 +0330
Subject: [PATCH 4/4] Fix linting

---
 Lib/site.py | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Lib/site.py b/Lib/site.py
index b83b3d1252d4a6..9ccc218d191070 100644
--- a/Lib/site.py
+++ b/Lib/site.py
@@ -817,7 +817,6 @@ def venv(known_paths):
                 major, minor = map(int, version.split(".")[:2])
             except ValueError:
                 major, minor = None
-            
             if (
                 major == sys.version_info.major
                 and minor is not None