* Reject device display names that are too long.
Too long is currently defined as 100 characters in length.
* Add a regression test for rejecting a too long device display name.
==============================
Features
--------
- Filter out m.room.aliases from the CS API to mitigate abuse while a better solution is specced. ([\#6878](https://github.com/matrix-org/synapse/issues/6878))
Internal Changes
----------------
- Fix continuous integration failures with old versions of `pip`, which were introduced by a release of the `zipp` library. ([\#6880](https://github.com/matrix-org/synapse/issues/6880))
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEv27Axt/F4vrTL/8QOSor00I9eP8FAl5BLBwACgkQOSor00I9
eP/9Ogf9HZ+XD5tt1uYkGqDSvUBS4sHdNcvxpNf1UMo6VaY4K5b9kF28MjY07ur2
nGq/nnLyLZZzwVXtV3q8upIdIK1hcMp2HCU0qDhEljepOkGmyQTqZooxrdrLTjPS
232bbifB6VFdK8P4gPIGopCRQI9a+TII4jODBobiJR43e0gEPfSREJKAnJs7DYaD
Quf3Svzu+jB+X8ymWLVbCFXuk4A4UqPzrRPb8TQBDN3w35G4JBDAgIpdxhQdJpdR
RIS1HgSm95P03doS23RLUjXuIpBfYveyStuGfPx4P9Lf30M2o6bxDeTPo2+IGbST
yhl1jB0l8Ve5/6veuTieA6vuXWU55g==
=2rgX
-----END PGP SIGNATURE-----
Merge tag 'v1.10.0rc3' into develop
Synapse 1.10.0rc3 (2020-02-10)
==============================
Features
--------
- Filter out m.room.aliases from the CS API to mitigate abuse while a better solution is specced. ([\#6878](https://github.com/matrix-org/synapse/issues/6878))
Internal Changes
----------------
- Fix continuous integration failures with old versions of `pip`, which were introduced by a release of the `zipp` library. ([\#6880](https://github.com/matrix-org/synapse/issues/6880))
We're in the middle of properly mitigating spam caused by malicious aliases being added to a room. However, until this work fully lands, we temporarily filter out all m.room.aliases events from /sync and /messages on the CS API, to remove abusive aliases. This is considered acceptable as m.room.aliases events were never a reliable record of the given alias->id mapping and were purely informational, and in their current state do more harm than good.
A lot of the things we log at INFO are now a bit superfluous, so lets
make them DEBUG logs to reduce the amount we log by default.
Co-Authored-By: Brendan Abolivier <babolivier@matrix.org>
Co-authored-by: Brendan Abolivier <github@brendanabolivier.com>
==============================
Bugfixes
--------
- Fix an issue with cross-signing where device signatures were not sent to remote servers. ([\#6844](https://github.com/matrix-org/synapse/issues/6844))
- Fix to the unknown remote device detection which was introduced in 1.10.rc1. ([\#6848](https://github.com/matrix-org/synapse/issues/6848))
Internal Changes
----------------
- Detect unexpected sender keys on remote encrypted events and resync device lists. ([\#6850](https://github.com/matrix-org/synapse/issues/6850))
-----BEGIN PGP SIGNATURE-----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=kcSy
-----END PGP SIGNATURE-----
Merge tag 'v1.10.0rc2' into develop
Synapse 1.10.0rc2 (2020-02-06)
==============================
Bugfixes
--------
- Fix an issue with cross-signing where device signatures were not sent to remote servers. ([\#6844](https://github.com/matrix-org/synapse/issues/6844))
- Fix to the unknown remote device detection which was introduced in 1.10.rc1. ([\#6848](https://github.com/matrix-org/synapse/issues/6848))
Internal Changes
----------------
- Detect unexpected sender keys on remote encrypted events and resync device lists. ([\#6850](https://github.com/matrix-org/synapse/issues/6850))
We were looking at the wrong event type (`m.room.encryption` vs
`m.room.encrypted`).
Also fixup the duplicate `EvenTypes` entries.
Introduced in #6776.
Richard van der Hoff