base-18.104.22.168 not backwards compatible with base-22.214.171.124
stefan at cs.uu.nl
Wed Nov 19 09:06:04 EST 2008
Could anyone confirm the following claims?
* base-126.96.36.199 (shipped with GHC 6.10.1) is supposed to be backwards
compatible with base-188.8.131.52 (shipped with GHC 6.8.3) ...
* ... but it isn't! (For example, the Arrow class from Control.Arrow
is a subclass of Category from Control.Category in base-184.108.40.206, but
not in base-220.127.116.11.)
Do we know of any similar issues? What's the recommended workaround
when shipping code that is to support both GHC 6.8.* and GHC 6.10.*?)
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