From e577c5d607b1edb827a5a137dd77587e394fdf5b Mon Sep 17 00:00:00 2001
From: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
Date: Mon, 30 Mar 2020 13:55:01 +0100
Subject: Attempt to clarify Python version requirements (#7161)

In particular, we depend on `typing.TYPE_CHECKING`, which is only present in
3.5.2.

It turns out that Ubuntu Xenial, despite having a package called `python 3
(3.5.1-3)`, actually has python 3.5.2, so I think this is fine.
---
 INSTALL.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/INSTALL.md b/INSTALL.md
index c0926ba590..8ded6e9092 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -36,7 +36,7 @@ that your email address is probably `user@example.com` rather than
 System requirements:
 
 - POSIX-compliant system (tested on Linux & OS X)
-- Python 3.5, 3.6, 3.7 or 3.8.
+- Python 3.5.2 or later, up to Python 3.8.
 - At least 1GB of free RAM if you want to join large public rooms like #matrix:matrix.org
 
 Synapse is written in Python but some of the libraries it uses are written in
@@ -427,8 +427,8 @@ so, you will need to edit `homeserver.yaml`, as follows:
   for having Synapse automatically provision and renew federation
   certificates through ACME can be found at [ACME.md](docs/ACME.md).
   Note that, as pointed out in that document, this feature will not
-  work with installs set up after November 2019. 
-  
+  work with installs set up after November 2019.
+
   If you are using your own certificate, be sure to use a `.pem` file that
   includes the full certificate chain including any intermediate certificates
   (for instance, if using certbot, use `fullchain.pem` as your certificate, not
-- 
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