Update changelog, remove Travis 3.9dev builds

Anthchirp · Anthchirp · commit 93bc57e2bfc4 · 2020-10-29T14:26:20.000Z
[ci skip]
diff --git a/.travis.yml b/.travis.yml
@@ -4,11 +4,6 @@ language: python
 
 matrix:
   include:
-    - python: 3.9-dev
-      dist: bionic
-#    - python: 3.9
-#      dist: bionic
-#      env: OPTIONAL=1
     - python: 3.8
     - python: 3.7
     - python: 3.6
diff --git a/HISTORY.rst b/HISTORY.rst
@@ -4,7 +4,7 @@ History
 
 2.3.0 (????-??-??)
 ------------------
-* Python 3.6+ only, support for Python 3.5 has been dropped
+* Add Python 3.9 support, drop Python 3.5 support
 * Fix a file descriptor leak on subprocess execution
 
 2.2.0 (2020-09-07)
diff --git a/tox.ini b/tox.ini
@@ -1,9 +1,8 @@
 [tox]
-envlist = py36, py37, py38, py39, flake8
+envlist = py36, py37, py38, flake8
 
 [travis]
 python =
-    3.9: py39
     3.8: py38
     3.7: py37
     3.6: py36
