Yes, version 1.9.0 of haskell-src-exts was uploaded on "Sun Apr 11 10:43:03 UTC 2010," but the ghc build is dated as modified on "15-Apr-2010 02:42" (in some unknown timezone) according the log <http://hackage.haskell.org/packages/archive/haskell-src-exts/1.9.0/logs/success/>. I believe that's longer than 30 minutes.

Regards,
Sean