It is also time to integrate newer versions of the algorithm, since there were quite many improvements since latest release. As a consequence, v1.0 is faster and more efficient, as can be seen in this table :
|compression speed||260 MB/s||295 MB/s|
|decompression speed||810 MB/s||990 MB/s|
You can grab this latest win32 binary at the LZ4 Homepage.