I tried to follow the procedure presented on https://wiki.ubuntu.com/Testing/EnableProposed, but got blocked at this stage :
``` sudo apt-get install zstd/xenial-proposed Reading package lists... Done Building dependency tree Reading state information... Done E: Release 'xenial-proposed' for 'zstd' was not found ``` and indeed, a further call to `apt list --upgradable` does not show `zstd/xenial-proposed` in the list of packages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1717040 Title: Please backport libzstd 1.3.1+dfsg-1 (universe) from artful To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libzstd/+bug/1717040/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs