The first post layout may be better if you separate the X2 guides from the M3 guides. Its a little to easy to click on an x2 guide by mistake right now.
Also.
Trade guides.
1.3 introduced a lot of trade related changes so any guide prior to that is outdated. Any guide for 1.3 or over will still be current and accurate. 1.3 was THE trader patch.
Combat.
These must be 2.02 specific due to the new ships if not the new weapons.
Plot guides.
1.4 is the latest version a plot guide should be to remain accurate today. I think its actually 1.3 but 1.4 should be a safe bet. All changes since 1.4 have been minor and would not effect any guide. Prior to this, lots of major and minor changes occured in every patch since the games release.
Equipement:
I think the presence or lack of equipement in a guide is personal choice. For my part, i prefer to leave some stuff for the player to find out. EG a certain new weapon introduced in 2.02. You know the one

Ships on the other hand should be mentioned and ive found and corrected that in all my guides now that required the new ships be listed. Mainly the combat guide since thats the one that deals with those ships.
A small over sight on my part.
Actually i totally forgotten about them

Giskard