I'm aware of the fact that Ubuntu 18.04 isn't released yet and things can change. However, all versions < 18.04 provide rustc 1.21 whereas 18.04 comes with 1.18 which already is quite old (recent Firefox versions needs at least 2.23 to build). Is there a reason for this downgrade? Is it worth to suggest to not do it until the release?

closed as off-topic by George Udosen, Eric Carvalho, karel, N0rbert, muru Feb 28 '18 at 1:39

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – George Udosen, Eric Carvalho, karel, N0rbert, muru
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rustc 1.23 is in proposed repos for 18.04. If everything goes right (in development), 18.04 may be released with version 1.23. If not, you can get it by enabling proposed repos.

Package Details : https://launchpad.net/ubuntu/bionic/+source/rustc

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