when i load up modpacks i load up minecraft 1.6.4 and i want to change it to open 1.8 but cant figure out how. help me please

[doomdays905]

need help making my tekkit launcher load 1.8 instead of 1.6.4 and help?

Edited October 28, 2014 by doomdays905

[Munaus]

there is no 1.8 modpacks. As for vanilla I don't know, but hardly anyone plays vanilla here