Zip-Ada is an Ada library for .zip archives. Its sources are unconditionally portable. Input and output can be any stream (such as a file or buffer) for archive creation as well as data extraction. It is task safe and endian-neutral.
A new package, Zip.Compress.Deflate, has been added, with an initial (weak but straightforward) compression technique for the Deflate format. Now Deflate is implemented for both compression and decompression, which could also lead to a version of the ZLib library fully in Ada.