From 6a1efa27b382c323b351026039be094d74a0237c Mon Sep 17 00:00:00 2001
From: Steven Silvester <steve.silvester@mongodb.com>
Date: Thu, 13 Aug 2026 10:41:43 -0500
Subject: [PATCH 1/3] PYTHON-5980 Reinstate exclude-newer uv config

PR #2977 removed the per-run set-uv-exclude-newer action, which was
correct once uv.lock is committed, but it also dropped the
exclude-newer setting from pyproject.toml entirely. That setting still
matters for uv lock itself, including the new weekly uv-lock-update.yml
job, so restore it and regenerate the lock file.
---
 pyproject.toml | 2 ++
 uv.lock        | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/pyproject.toml b/pyproject.toml
index 346df2f427..c612a89d29 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,6 +47,8 @@ Source = "https://github.com/mongodb/mongo-python-driver"
 Tracker = "https://jira.mongodb.org/projects/PYTHON/issues"
 
 [tool.uv]
+# Wait 7 days before resolving newly published package versions.
+exclude-newer = "7 days"
 # boto3 dropped Python 3.9 support in 1.43, so the universal lock forks at
 # 3.10. Without a floor the pre-3.10 fork back-solves to boto3 1.7.84 (2018),
 # whose vendored six and invalid escape sequences break test collection. No
diff --git a/uv.lock b/uv.lock
index 059eadd7b7..c24f82559b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -8,6 +8,10 @@ resolution-markers = [
     "python_full_version <= '3.9'",
 ]
 
+[options]
+exclude-newer = "0001-01-01T00:00:00Z" # This has no effect and is included for backwards compatibility when using relative exclude-newer values.
+exclude-newer-span = "P7D"
+
 [manifest]
 constraints = [{ name = "boto3", specifier = ">=1.34" }]
 

From 8be3d31d17622ffff310040a4856a59d0170c3dc Mon Sep 17 00:00:00 2001
From: Steven Silvester <steve.silvester@mongodb.com>
Date: Thu, 13 Aug 2026 11:13:20 -0500
Subject: [PATCH 2/3] PYTHON-5980 Ensure uv >= 0.10 in install-dependencies.sh

Evergreen hosts can have an older uv already on PATH, which doesn't
support the relative exclude-newer value in pyproject.toml and fails
to parse it. Check the installed version and force a fresh install
into PYMONGO_BIN_DIR (which already takes precedence on PATH) when
it's missing or too old.
---
 .evergreen/scripts/install-dependencies.sh | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/.evergreen/scripts/install-dependencies.sh b/.evergreen/scripts/install-dependencies.sh
index 8df2af79ca..2a8a8edce8 100755
--- a/.evergreen/scripts/install-dependencies.sh
+++ b/.evergreen/scripts/install-dependencies.sh
@@ -15,8 +15,17 @@ if [ -z "${PYMONGO_BIN_DIR:-}" ]; then
   PYMONGO_BIN_DIR="$HOME/.local/bin"
 fi
 
-# Ensure uv is installed.
-if ! command -v uv &>/dev/null; then
+# Ensure uv >= 0.10 is installed (older versions don't support pyproject.toml
+# settings we rely on, e.g. relative `exclude-newer` values).
+MIN_UV_VERSION="0.10.0"
+
+uv_version_ok() {
+  command -v uv &>/dev/null || return 1
+  _current="$(uv --version | cut -d' ' -f2)"
+  [ "$(printf '%s\n%s\n' "$MIN_UV_VERSION" "$_current" | sort -V | head -n1)" = "$MIN_UV_VERSION" ]
+}
+
+if ! uv_version_ok; then
   _BIN_DIR=$PYMONGO_BIN_DIR
   mkdir -p ${_BIN_DIR}
   echo "Installing uv..."
@@ -26,6 +35,10 @@ if ! command -v uv &>/dev/null; then
   fi
   export PATH="$PYMONGO_BIN_DIR:$PATH"
   echo "Installing uv... done."
+  if ! uv_version_ok; then
+    echo "Installed uv $(uv --version) but >= $MIN_UV_VERSION is required." >&2
+    exit 1
+  fi
 fi
 
 # Ensure just is installed.

From 36b274551eed10416d670e1fb275688725cdb5ed Mon Sep 17 00:00:00 2001
From: Steven Silvester <steve.silvester@mongodb.com>
Date: Thu, 13 Aug 2026 12:37:53 -0500
Subject: [PATCH 3/3] PYTHON-5980 Use a portable version comparison in
 install-dependencies.sh

sort -V is a GNU extension not guaranteed on macOS's stock sort, and
Evergreen runs macOS variants through this script. Compare the
major/minor/patch components directly in bash instead.
---
 .evergreen/scripts/install-dependencies.sh | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/.evergreen/scripts/install-dependencies.sh b/.evergreen/scripts/install-dependencies.sh
index 2a8a8edce8..a575f0e799 100755
--- a/.evergreen/scripts/install-dependencies.sh
+++ b/.evergreen/scripts/install-dependencies.sh
@@ -22,7 +22,13 @@ MIN_UV_VERSION="0.10.0"
 uv_version_ok() {
   command -v uv &>/dev/null || return 1
   _current="$(uv --version | cut -d' ' -f2)"
-  [ "$(printf '%s\n%s\n' "$MIN_UV_VERSION" "$_current" | sort -V | head -n1)" = "$MIN_UV_VERSION" ]
+  IFS='.' read -r _min_major _min_minor _min_patch <<< "$MIN_UV_VERSION"
+  IFS='.' read -r _cur_major _cur_minor _cur_patch <<< "$_current"
+  [ "${_cur_major:-0}" -gt "${_min_major:-0}" ] && return 0
+  [ "${_cur_major:-0}" -lt "${_min_major:-0}" ] && return 1
+  [ "${_cur_minor:-0}" -gt "${_min_minor:-0}" ] && return 0
+  [ "${_cur_minor:-0}" -lt "${_min_minor:-0}" ] && return 1
+  [ "${_cur_patch:-0}" -ge "${_min_patch:-0}" ]
 }
 
 if ! uv_version_ok; then