Nevermind, 3.7 isn't available on Travis-CI yet.

.travis.yml

 language: python
 python:
   - 2.7
+  - 3.5
   - 3.6
-  - 3.7
 env:
   - DJANGO_VERSION='>=1.11,<2.0'
   - DJANGO_VERSION='>=2.0,<2.1'
@@ -13,8 +13,6 @@ matrix:
       env: DJANGO_VERSION='>=2.0,<2.1'
     - python: 2.7
       env: DJANGO_VERSION='>=2.1,<2.2'
-    - python: 3.4
-      env: DJANGO_VERSION='>=2.1,<2.2'
 # command to run tests
 install: ./install_redis.sh
 script: make test DJANGO_VERSION=$DJANGO_VERSION

README.rst

@@ -26,8 +26,7 @@ Changelog
 
 * Adds support for redis-py >= 3.0.
 * Drops support for Redis 2.6.
-* Drops support for Python 3.4 and 3.5.
-* Add support for Python 3.7.
+* Drops support for Python 3.4.
 * Removes custom ``expire`` method in lieu of Django's ``touch``.
 * Removes ``CacheKey`` in favor of string literals.