Som We're pushed to install LC 8... today's version.

Beside I've already created one communty 7.0.6 Edition projet or stacks and it is working well.
1) What's the guideline to install LC8 comunity ed. without screewing up my existing work ?
2) Can both be installed/used for sometime without interfering.
*I believe once converted to LC8 my stasks wont be working 100% under 7.0.6.
Thanks for guidance...
