This bumps us closer to current Python without going all the way to 3.9. Fixes #8674 Signed-off-by: Dan Callahan <danc@element.io>
@@ -0,0 +1 @@
+Use Python 3.8 in Docker images by default.
@@ -11,7 +11,7 @@
# docker build -f docker/Dockerfile --build-arg PYTHON_VERSION=3.6 .
#
-ARG PYTHON_VERSION=3.7
+ARG PYTHON_VERSION=3.8
###
### Stage 0: builder