From efb1430c2dfc23ea8329a2166c66686b8d0cbfae Mon Sep 17 00:00:00 2001
From: ADBond <48208438+ADBond@users.noreply.github.com>
Date: Mon, 4 Nov 2024 17:06:44 +0000
Subject: [PATCH 1/2] Deprecation warning for python 3.8

---
 splink/__init__.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/splink/__init__.py b/splink/__init__.py
index 1998d285e..ea5af8f04 100644
--- a/splink/__init__.py
+++ b/splink/__init__.py
@@ -1,4 +1,6 @@
+from sys import version_info
 from typing import TYPE_CHECKING
+from warnings import warn
 
 from splink.internals.blocking_rule_library import block_on
 from splink.internals.column_expression import ColumnExpression
@@ -17,6 +19,19 @@
     from splink.internals.duckdb.database_api import DuckDBAPI
     from splink.internals.spark.database_api import SparkAPI
 
+if version_info.minor == 8:
+    warn(
+        (
+            "Python 3.8 has reached end-of-life.  "
+            "Future releases of Splink may no longer be compatible with "
+            "this python version.\n"
+            "Please consider upgrading your python version if you wish "
+            "to continue to be able to install the latest version of Splink."
+        ),
+        category=DeprecationWarning,
+        stacklevel=2,
+    )
+
 
 # Use getarr to make the error appear at the point of use
 def __getattr__(name):

From 4935da2321d091c49c3986158175fd7ec01768ce Mon Sep 17 00:00:00 2001
From: ADBond <48208438+ADBond@users.noreply.github.com>
Date: Mon, 25 Nov 2024 09:43:06 +0000
Subject: [PATCH 2/2] update changelog with deprecation

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd038f2d8..7c85c807e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Deprecated
+
+- Deprecated support for python `3.8.x` following end of support for that minor version ([#2520](https://github.com/moj-analytical-services/splink/pull/2520))
+
 ## [4.0.6] - 2024-12-05
 
 ### Added