This game has been modded by so many people that it's quite a mess. This is the problem we're trying to resolve by making an all-in-one 2.0 F95 version.
I thought about it for a while and made the following conclusions.
If you really going to merge at least two big patches for 1.7.5, like 1.7.6 and 1.8 , or/and add some significant changes in the game by yourself then you should call it v2.0 (F95 Edition).
And if you going to fix 1.8 based on 1.7.5 and rework a graphic content, then you should call it something like 1.8.x (F95 Edition or even better - 1.8.x F95 Gaphic Edition).
In that way there will be less misguided people. Because you were right indeed about quite a mess in the quantity of versions ot this game.
As well you should know - There is parallel work is underway for the last several months on the Russian version of Jack HF 1.7.3 by Crushboss. Actually it is a big fork of it. At the 1st big stage it was called by author as v1.7.5.1, then became 1.7.6 with a little changes, and now it is a next big stage called 1.7.7.x Mod by Mars & Jinn (the last from 15.02.2019). And there is much more changes in the game, compared to the base 1.7.3 Jack HF, than any other mods consists for this moment. Authors of this mod are not so obssesed (in a good way) about a graphic content remake, wich is a weak side of their work from my point of view, because with an old censored images it is not so tempting for the most of the fans to play this game again.
On the contrary - even without new levels and features, but with a modern uncensored images, optimized gui and fixed bugs alltogether may allow this already good and successful game to become competitive, with respect to many modern games.