> The license specify that you are free to use React as you would use a BSD licensed software, provided that you never sue FB for a patent.
Only if something in React is patented. As I read it, only the patent license is revoked if you sue Facebook, so if nothing in React is patented then the patent license is superfluous anyway and you should have nothing to worry about.
The issue with the Apache license seems to be that the Apache license itself contains a similar patent license with a similar revocation clause (if you sue anyone, but only if you sue them over the Apache licensed software). I presume (not a lawyer) this means the licenses are incompatible, and Facebook's software can't be used in an Apache licensed product.
Only if something in React is patented. As I read it, only the patent license is revoked if you sue Facebook, so if nothing in React is patented then the patent license is superfluous anyway and you should have nothing to worry about.
The issue with the Apache license seems to be that the Apache license itself contains a similar patent license with a similar revocation clause (if you sue anyone, but only if you sue them over the Apache licensed software). I presume (not a lawyer) this means the licenses are incompatible, and Facebook's software can't be used in an Apache licensed product.