I've decided to just go with randomR, simpler and guaranteed to work. Here's the PR: https://github.com/xmonad/xmonad-contrib/pull/573 P.S. I don't see an attachment in your email. But if there was simply an addition of "random >= 1.2" to build-depends (library and tests), then I've already tried and stack gave me lots of new errors (apparently the ghc snapshot it downloaded already includes random-1.1?). Best regards, Platon Pronko On 2021-07-15 11:27, Solid wrote:

On Thu, Jul 15 2021 10:31, Platon Pronko wrote:

...

Should I use randomR instead? Alternatively, how can I specify that a newer version of random should be used?

AFAIK you just have to specify that in the cabal file. I've attached a diff that should probably work.

The main thing is to test whether this works with all of the GHC versions that we support (which is back to 8.4.4 right now). If that's the case then I have no objections to raising the version bounds for random—especially for random actually; the library has gotten a dearly needed overhaul with 1.2.