A small patch release to fix regressions introduced in v1.11.0 and v1.12.0.

Update 1.12.3 is a fast follow release from 1.12.2

Get 1.12.3 (not 1.12.2) from github or any of the sources mentioned at https://github.com/matrix-org/synapse/blob/master/INSTALL.md.

Changelog since v1.12.0

🔗Synapse 1.12.3 (2020-04-03)

• Remove the the pin to Pillow 7.0 which was introduced in Synapse 1.12.2, and correctly fix the issue with building the Debian packages. (#7212)

🔗Synapse 1.12.2 (2020-04-02)

This release fixes an issue with building the debian packages.

🔗Synapse 1.12.1 (2020-04-02)

No significant changes since 1.12.1rc1.

🔗Synapse 1.12.1rc1 (2020-03-31)

🔗Bugfixes

• Fix starting workers when federation sending not split out. (#7133). Introduced in v1.12.0.
• Avoid importing sqlite3 when using the postgres backend. Contributed by David Vo. (#7155). Introduced in v1.12.0rc1.
• Fix a bug which could cause outbound federation traffic to stop working if a client uploaded an incorrect e2e device signature. (#7177). Introduced in v1.11.0.