After a chat with the developer of the tool used to compile 7zX, it has become clear that there is not much we can do to release a secure version of my software. Version 1.3.4 might be made available to the public soon, but will probably be only a repackaged version of 1.3.3. There will be no further release of 7zX for a while.
At the same time, I would like to announce that Sixty Five has been working for some time on a better, rewritten version of 7zX. I find the advancements made on this software incredible to behold.
Release 2.0 is nowhere near to be finished, but some features are present already, and more will be coming soon.
The screenshot above was taken from the new Preferences section.