Synapse 0.99.1rc1

Features

• Include m.room.encryption on invites by default (#3902)
• Federation OpenID listener resource can now be activated even if federation is disabled (#4420)
• Synapse's ACME support will now correctly reprovision a certificate that approaches its expiry while Synapse is running. (#4522)
• Add ability to update backup versions (#4580)
• Allow the "unavailable" presence status for /sync.
  This change makes Synapse compliant with r0.4.0 of the Client-Server specification. (#4592)
• There is no longer any need to specify no_tls: it is inferred from the absence of TLS listeners (#4613, #4615, #4617)
• The default configuration no longer requires TLS certificates. (#4614)

Bugfixes

• Copy over room federation ability on room upgrade. (#4530)
• Fix noisy "twisted.internet.task.TaskStopped" errors in logs (#4546)
• Synapse is now tolerant of the tls_fingerprints option being None or not specified. (#4589)
• Fix 'no unique or exclusion constraint' error (#4591)
• Transfer Server ACLs on room upgrade. (#4608)
• Fix failure to start when not TLS certificate was given even if TLS was disabled. (#4618)
• Fix self-signed cert notice from generate-config. (#4625)
• Fix performance of user_ips table deduplication background update (#4626, #4627)

Internal Changes

• Change the user directory state query to use a filtered call to the db instead of a generic one. (#4462)
• Reject federation transactions if they include more than 50 PDUs or 100 EDUs. (#4513)
• Reduce duplication of synapse.app code. (#4567)
• Fix docker upload job to push -py2 images. (#4576)
• Add port configuration information to ACME instructions. (#4578)
• Update MSC1711 FAQ to calrify .well-known usage (#4584)
• Clean up default listener configuration (#4586)
• Clarifications for reverse proxy docs (#4607)
• Move ClientTLSOptionsFactory init out of refresh_certificates (#4611)
• Fail cleanly if listener config lacks a 'port' (#4616)
• Remove redundant entries from docker config (#4619)
• README updates (#4621)