6.6.0.0

• Import Bibutils 6.6.

• Expose NBIB output support.

6.5.0.0

• Import Bibutils 6.5.

6.4.0.0

• Import Bibutils 6.4.

6.3.0.1

• Fix MacOS X compilation.

6.3.0.0

• Update to Bibutils 6.3.

• Enable NBIB support.

• Expose additional options values.

6.2.0.1

• This is a patch release fixing MacOS X compilation.

• Patched few minor warnings in imported Bibutils source.

• Implemented Travis-CI builds through Cabal and Stack.

6.2

• This release has removed wordout_dropkey because the corresponding constant in Bibutils has also been removed.