* 'develop' of github.com:matrix-org/synapse: (75 commits)
Add instance name to RDATA/POSITION commands (#7364)
Don't relay REMOTE_SERVER_UP cmds to same conn. (#7352)
Fix limit logic for EventsStream (#7358)
Fix fallback value for account_threepid_delegates.email (#7316)
Clean up admin api docs (#7361)
Return total number of users and profile attributes in admin users endpoint (#6881)
Add some replication tests (#7278)
Fix typo 'datbases' in ConfigError
Fix collation for postgres for unit tests (#7359)
Run replication streamers on workers (#7146)
Fix incorrect metrics reporting for renew_attestations (#7344)
Document monitoring workers (#7357)
Add some explanation to application_services.md (#7091)
Don't crash when one of the configuration files is empty (#7341)
Add documentation to the sample config about the templates for SSO. (#7343)
Convert some of the federation handler methods to async/await. (#7338)
changelog
Fix EventsStream raising assertions when it falls behind
1.12.4
Make it clear that the limit for an update_function is a target
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