[icebraining]

And with n feature flags, aren't there also n! permutations to test, that is, each combination of enabled/disabled? If you say no, because you just test features as they get manually enabled, why can't you do the same by manually selecting branches to be merged?

[einrealist]

Yes, that complexity does not go away. But you only need one delivery pipeline, with one test/staging environment. Toggling and running acceptance tests against the variations can be automated, but is viable when done manually.

[susam]

With n feature flags, there are 2^n possibilities to test.