Video and voice calls are available on all platforms.
Video calling will not work out of the box. It requires STUN/TURN servers which must be obtained and configured separately (for instance, see metered.ca).
Other changes:
f206e94 Python gRPC updated
9012817 bug fix: invalid push causing channels to be marked as deleted
49eb1b8 Respond with 503 instead of 500 when queues are full
9f306a6 incorrect struct tags in push
0d317b3 fix for #775
674f74f fix build script
c7508ee Remove deadlock on server overload, #786.
16f0eef Replace NULL uid with 0 in file upload record.
d7b9bfb Issue login-enabled auth token for new account validation.
538cad2 Make email templates more intuitive.
df465dd Make cred validator use STD base64 encoding instead of URL base64 token, consistently with normal auth token.
59f89b0 Add error logging for HTTP->HTTPS redirect.
96b0ab3 Improved error messages in topic_proxy.
6e803e5 Fix handling grpX and chnX multiplexing sessions.
29279f3 Change Topic.maybeFixTopicName() to account for sub type.
031b446 Add chn multiplexing sessions to topic master.
The full list of changes: v0.19.3...v0.20.0