Hello, I have released simple-sendfile v0.2.1. I made two changes: 1) Eugene Crosser kindly pointed out that old simple-senfile cannot work well in a certain Linux environment. This is because simple-senfile call "sendfile64()" which is inherited from the sendfile package. He told me that using "sendfile()" is a right way. 2) Fallback implementation switched from enumerator to Conduit. If you find any problems, please let me know. Eugene, thank you again! --Kazu