ashley:

On Sat, 2010-07-17 at 21:01 -0700, Don Stewart wrote:

...

Diamond dependencies, surely, will occur?

The other packages shouldn't depend on the old version, even if it does happen to be the one shipped with GHC.

The Haskell Platform should be the blessing of package versions, not GHC.

The current process for maintainers of bootstrap libraries is to work closely with Ian Lynagh prior to a GHC release to make sure the correct version of e.g. bytestring, is shipped. Looks like that didn't happen with the time lib. Now, something GHC boots from must depend on time, or it wouldn't be in the bootstrap set. Hunting around, it looks like: random And these boot packages depend on old-time: Cabal directory haskell98 So, if we clobbered the version of time installed with GHC, we'd end up with possible diamond dep failures constructed by users of the random package :/ I agree this is an unsatisfactory situation, that versions shipped with GHC's boot libs are set outside of the control of the HP release team. -- Don