My project was created several years ago, and it's use babel 6.x.
Now, I need to import a plugin that depend on babel 7.x , and I try to use it, and didn't find problems yet, but I know it's a dangerous action to keep two different mainly babel version in one project.
And it will make a big influence if I upgrade the babel version from 6.x to 7.x, I guess I have no time to do it. So can I both use babel 6 and 7 in my project, and can anyone told me the risk of it?
