FYI: Current hackage-registered libraries which exclude base-4.4 from GHC 7.2

[Herbert Valerio Riedel]

ps: Here's an approximate break-down of the most popular version
constraints (normalized via Distribution.Version.simplifyVersionRange)
found in the current versions the registered hackage packages (currently
3269 packages):

   1004 ==4.*
    475 >=3 && <5
    439 -any
    319 no base dependancy
    233 <5
     57 >=4
     46 >=4.0 && <5
     45 >=2 && <5
     41 >=3
     41 ==3.*
     39 >=4.2 && <5
     29 >=4 && <4.4
     28 >3 && <5
     26 >=4.0 && <5.0
     26 >3
     21 >4 && <5
     21 <4
     21 >=3 && <=5
     19 >=4 && <6
     18 >=4 && <=5
     17 ==4.3.*
     17 >=3.0
     17 >=2 && <4
     16 >=4.0 && <4.4
     14 >=4.3 && <5
     13 >=3.0 && <5
     12 >=4.2 && <4.4
     11 >=3 && <4.4
     11 >=2.0
     10 >=4.1 && <5
     10 >=3.0 && <4.1
      9 >=3 && <6
[...tail...]