I am thinking in buying an Everdrive 64 just to play this hack on console. On the website there are two versions: v2.5 and v3.
Could anyone me point me the difference between playing 19XXTE on v2.5 and v3? As this is the only reason that I will buy this. Like for example, if a new version of 19XXTE is released, both cartridges would have the same chance of running the hack properly? or v3 is safer for this purpose? After all I want to save money but at the same time make sure that I am able to play 19XXTE and if that means buying the more expensive one I will take that.
I don't know where else to ask this so that's why I ask here. Sorry for the long text, question. Could anyone answer this please?
There are 2 main differences.
The first is addition of automatic save backup. When you save a game on the 2.5 everdrive, in order for the cartridge to dump the save file to the SD card, you just need to hit the reset button. This takes you back to the everdrive menu, and it will backup the save file for whatever game you were playing. This isn't a major issue for 19XX since it doesn't really need to update the save file after playing games, unless you care about in game record keeping stuff.
The 2nd difference is that the 3.0 ED has a real time clock for the few games that used it. I think most notably Pokémon Stadium Gold & Silver had some functionality that used a clock which would cause the game to freeze or crash on the 2.X everdrive.
edit: it's something to do with the new save ram that the ED3.0 works with Pokémon Stadium 2, and not earlier revisions.
Overall, if the main thing you're interested in it for is smash, the 2.5 will serve every purpose.