QuaZIP is a Qt4/C++ wrapper library allowing QIODevice-based access to zip files.
Version 0.4 implements QIODevice-based IO API which allows using any seekable QIODevice for accessing ZIP files. It should also fix any problems regarding handling of files with size between 2 GB and 4 GB.
Version 0.4 also introduces Pimpl idiom for main classes which should enable better binary compatibility with future versions.
Version 0.4.1 just clears some confusion about licensing. Now QuaZip is clearly LGPL with no confusing notices.