Many, many bugs have been fixed relative to 6.6. Far too many to list here.
The other changes in this release are:
* GHC works on Windows Vista.
* GHC can now be used to compile C++ files.
* There is an --install-signal-handlers=<yes|no> RTS flag. The main use is
to stop GHC installing signal handlers when you are putting your code in
a DLL.
* Newtypes can now be defined using GADT syntax.
* Linear implicit parameters are no longer accepted.
* There is a manpage for ghc and ghci.
* The building guide has been moved to the wiki.
* GHC now comes with the filepath library.
"6.4.1 is a bugfix release over 6.4. No library APIs have changed, so code
that worked with 6.4 should continue to work with 6.4.1.
Many, many bugs have been fixed relative to 6.4. Far too many to list here."
Fixes PR pkg/31751.
GHC documentation for details.
The most import change is that this package (which has been broken since the
conversion from a.out to ELF) has been re-ported to NetBSD by Urban Boquist,
boquist@crt.se.
