Update changelog and bump version

CHANGES.md

@@ -0,0 +1,64 @@
+# Change Log
+
+For a list of releases, see: https://github.com/django-ses/django-ses/releases/
+
+## Upcoming (dev)
+
+The following changes are not yet released, but are code complete:
+
+Features:
+- None
+
+Changes:
+- None
+
+Deprecations:
+ - None
+
+Fixes:
+- None
+
+## Current
+
+**3.0.0**
+
+Pulls and Issues:
+ - https://github.com/django-ses/django-ses/pull/238
+   - https://github.com/django-ses/django-ses/issues/232
+ - https://github.com/django-ses/django-ses/pull/239
+   - https://github.com/django-ses/django-ses/issues/182
+   - https://github.com/django-ses/django-ses/issues/176
+
+Features:
+ - AWS certificates fetched by the notification verifier are now cached. 
+   Previously, each notification that you received and verified would perform 
+   an HTTP GET to AWS to download the certificate. This was unnecessary and has
+   been replaced with a simple in-memory cache.
+ - The repository now uses poetry and a pyproject.toml file for dependency and 
+   metadata management. This fixes #232, and lands support for Python 3.10 
+   while tidying up a bunch of older Python files (setup.py, manifest.in, and 
+   AUTHORS are all removed).
+ - The README has been updated and simplified.
+ - A new GitHub Action will auto-release tagged commits to PyPi.
+ - Verification tests now verify their cryptographic functions against real 
+   data and a real certificate.
+
+Changes:
+ - The dependency on m2Crypto is removed and is replaced with the
+   `cryptography` package. This simplifies the install and moves django-ses to
+   a more modern cryptography toolkit. If you previously had installed `SWIG` 
+   or `libssl-dev`, those dependencies are no longer needed for this package.
+
+Deprecations:
+ - Django 3.0 and 3.1 are deprecated and support for them has been removed.
+ - Python 3.5 and 3.6 are deprecated and support for them has been removed.
+
+Fixes:
+ - A hang was removed from the notification verifier by adding a `timeout`
+   parameter to the certificate download code. Without this timeout, [it was 
+   possible](https://github.com/psf/requests/issues/3070) for a broken 
+   connection to endlessly hang an application. 
+
+## Past
+
+See: https://github.com/django-ses/django-ses/releases/

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "django-ses"
-version = "2.6.2"
+version = "3.0.0"
 description = "A Django email backend for Amazon's Simple Email Service"
 authors = [
     "Harry Marr <harry@hmarr.com>",