Level 31
I've noticed with 7-Zip is doesn't check itself for updates of software releases so I am wondering if there's an alternative to 7-Zip which has this function, I don't wish to add another pice of software which checks for updates of other software(s), which means I would have to keep that updated as well xD

Thanks for reading.



Level 28
I know you mentioned not wanting another tool to update and its a bit different from what you want but try PatchMyPC portable app to update. It supports several popular softs, doesn't have ads or similar harmful objects.
It's a great tool. Highly recommended.