Add MAS note to 1.139.0 changelog

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Andrew Morgan 2025-09-30 12:05:28 +01:00
parent 72020f3f2c
commit 0aeb95fb07

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# Synapse 1.139.0 (2025-09-30)
### `/register` requests from old application service implementations may break when using MAS
If you are using Matrix Authentication Service (MAS), as of this release any
Application Services that do not set `inhibit_login=true` when calling `POST
/_matrix/client/v3/register` will receive the error
`IO.ELEMENT.MSC4190.M_APPSERVICE_LOGIN_UNSUPPORTED` in response. Please see [the
upgrade
notes](https://element-hq.github.io/synapse/develop/upgrade.html#register-requests-from-old-application-service-implementations-may-break-when-using-mas)
for more information.
No significant changes since 1.139.0rc3.