This new release of 7zX fixes some problems we found with the new password detection feature: it looks like the compression core expands 0 B files and folders before prompting for a password, and this caused 7zX not to prompt the user on certain archives.
Last but not least, it also includes some interesting optimizations and a rewritten Self-Extracting Archive core. 
sorry for this feedback, but I didn’t really catch the way this app works: I mean, if I had 3 archives (example), wich one should I double click to obtain my final original object?
sould I select all three and then process or what?
I didn’t catch this immediately.
You mean an archive divided in three segments? If this is the case, the files are expected to have extensions .001, .002, .003: opening the first one would allow 7zX to give you back the original document.
I hope I correctly understood your question; if this is not the case, just make another post.
Wow - this is a great little utility. My only question is can I send the compressed archive to people using pc’s? will they be able to extract the files?
Sure! Here is a small list of Windows/Linux utilities fully compatible with 7zX.