1686573 - Set minimum DTLS version to 1.2 again

Status: RESOLVED FIXED

(Core :: WebRTC: Networking, enhancement, P2)

Description

[Nils Ohlmeier [:drno]]

After Google Chrome silently dropped support for DTLS 1.0 in Chrome 88 https://bugs.chromium.org/p/webrtc/issues/detail?id=10261 it's time for us to turn it off as well.
To turn off DTLS 1.0 we need to set the default minimum version to 1.2.

Comment 1

[Nils Ohlmeier [:drno]]

Attachment: Bug 1686573: set minimum DTLS version to 1.2. r=ng

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/c86210c52bb1
set minimum DTLS version to 1.2. r=ng

Comment 3

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/c86210c52bb1

Comment 4

[Narcis Beleuzu [:NarcisB]]

https://hg.mozilla.org/mozilla-central/rev/c86210c52bb1

Comment 5

[Nils Ohlmeier [:drno]]

Release Note Request (optional, but appreciated)
[Why is this notable]: We disabled an old DTLS version which might result in Firefox not connecting to some really old services any more.
[Affects Firefox for Android]: Yes
[Suggested wording]: From Firefox 86 on forward DTLS 1.0 is no longer supported for establishing WebRTC's PeerConnections. All WebRTC services need to support DTLS 1.2 from now on as the minimum version.
[Links (documentation, blog post, etc)]: Here is an old blog post where we planed to turn this off before the pandemic https://blog.mozilla.org/webrtc/removing-old-versions-of-dtls/

Comment 6

[Pascal Chevrel:pascalc (PTO until April 26)]

Added to final 86 release notes.