Drop Python 3.8 compatibility

Author: tulir

.github/workflows/python-package.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v3

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## v0.20.0 (unreleased)
 
+* Dropped Python 3.8 support.
 * **Breaking change *(.state_store)*** Removed legacy SQLAlchemy state store
   implementations.
 * **Mildly breaking change *(util.async_db)*** Changed `SQLiteDatabase` to not
@@ -9,6 +10,10 @@
     for absolute paths.
   * Bridge configs do this migration automatically.
 
+## v0.19.16 (2023-05-26)
+
+* *(appservice)* Fixed Python 3.8 compatibility.
+
 ## v0.19.15 (2023-05-24)
 
 * *(client)* Fixed dispatching room ephemeral events (i.e. typing notifications) in syncer.

setup.py

@@ -33,7 +33,7 @@
         "encryption": encryption_dependencies,
     },
     tests_require=test_dependencies,
-    python_requires="~=3.8",
+    python_requires="~=3.9",
 
     classifiers=[
         "Development Status :: 4 - Beta",
@@ -42,7 +42,6 @@
         "Framework :: AsyncIO",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",