Behat 3 is out by now. You configure paths as follows:
#behat.yml
default:
autoload:
'': %paths.base%/tests/features/bootstrap
suites:
default:
paths:
- %paths.base%/tests/features
The path given in the autoload
section sets the path where Behat looks for context classes. The paths in the suites
section are where the feature definitions (of the default
suite in this case) live in.