The next release will be 0.7. Here's a list of the changes I want to go into it:

• Require 6.10 or later
• Get rid of the explicit exception handler withInterrupt and its support code.
• Don't use the extensible-exceptions package.
• MTL fixes (as suggested on that blog)
• Fix Windows multi-byte
• Others? Look through tickets.

Note that we should also update terminfo to require 6.10 and not use extensible-exceptions.