Unpin test dependencies.

Closes #282.

.travis.yml

@@ -1,5 +1,6 @@
 sudo: false
 
+dist: bionic
 language: python
 
 python:
@@ -10,11 +11,12 @@ python:
 
 env:
 - TWISTED="twisted"
-- TWISTED="twisted==18.7.0"
+- TWISTED="twisted==20.3.0"
 
 install:
-- pip install $TWISTED -e .[tests]
+  - pip install -U pytest  # Travis comes with an old version pre-installed.
-- pip freeze
+  - pip install $TWISTED -e .[tests]
+  - pip freeze
 
 script:
 - pytest

CHANGELOG.txt

@@ -1,12 +1,19 @@
+Unreleased
+----------
+
+* Updated twisted requirement to 20.3 or later.
+* Updated Autobahn dependency to 20.4 or later.
+
+
 2.5.0 (2020-04-15)
 ------------------
 
-* Fixes compatability for twisted when running Python 3.8+ on Windows, by 
+* Fixes compatability for twisted when running Python 3.8+ on Windows, by
-  setting ``asyncio.WindowsSelectorEventLoopPolicy`` as the event loop policy 
+  setting ``asyncio.WindowsSelectorEventLoopPolicy`` as the event loop policy
-  in this case. 
+  in this case.
 
-* The internal ``daphne.testing.TestApplication`` now requires an addition 
+* The internal ``daphne.testing.TestApplication`` now requires an addition
-  ``lock`` argument to ``__init__()``. This is expected to be an instance of 
+  ``lock`` argument to ``__init__()``. This is expected to be an instance of
   ``multiprocessing.Lock``.
 
 2.4.1 (2019-12-18)

setup.py

@@ -22,10 +22,10 @@ setup(
     package_dir={"twisted": "daphne/twisted"},
     packages=find_packages() + ["twisted.plugins"],
     include_package_data=True,
-    install_requires=["twisted[tls]>=18.7", "autobahn>=0.18", "asgiref~=3.2"],
+    install_requires=["twisted[tls]>=20.3", "autobahn>=20.4", "asgiref~=3.2"],
     setup_requires=["pytest-runner"],
     extras_require={
-        "tests": ["hypothesis==4.23", "pytest~=3.10", "pytest-asyncio~=0.8"]
+        "tests": ["hypothesis", "pytest", "pytest-asyncio"]
     },
     entry_points={
         "console_scripts": ["daphne = daphne.cli:CommandLineInterface.entrypoint"]