Mod Backwards Compatibility and other Qs
 

I am seriously considering buying a Full License in the next few days, but before I do I would like to know a few things. I'm sure you've heard most of these questions many times, so thank you in advance for your patience.

1. Are modifications/hacks backwards compatible? That is to say, if a mod is listed for version "3.7.x" will it work on the latest version that I buy, 3.8.3?

Specifically I was looking at this mod:
https://vborg.vbsupport.ru/showthread.php?t=174073

If this mod works with 3.8.3, is that common? Do all 3.7.x, 3.6.x etc mods work with 3.8.x?

2. Once I buy a license can I download any older version that I want from the members section? Eg. If the latest version is 3.8.3, can I download 3.7.x if I wanted to? (This is mainly for the situation where plugins don't work with the latest version, as mentioned in Q1.)

3. I think I read something about there being a cost to upgrade to vBulletin 4? If so, will I have to pay this if version 4 comes out before my 12 months of updates runs out?

If I have to pay to upgrade to 4.x then I won't really be receiving any updates for 3.x seeing as though 3.8.3 is the "potential final version". Hence, the second part of my question: Would it be better for me to wait until 4.x comes out before buying? (Please try to give a non-biased answer :p)

4. Once my one-year update license expires, can I still download content from the members section? (The current version I had, as well as mods, etc.)

Thank you for your time! :)

1. This will depend on the modification, but most should work. To be sure, please read the comments in the thread.

2. Yes

3. Details about vB4 pricing are not known yet.

4. Yes

Thank you for the prompt reply. I will buy buying vBulletin this week!

I'm pretty sure the "Buy" was meant to be a "Be"... You can't buy 'buying vbulletin'.

Yes you're right :P

oh, the english problem :D