Generally, we have now -h is minimalistic help focussing on the most important options -help is more verbose
We also distinguish now between debug and release version.
debug -help => identical to the old -h but indicates which phases are executed with the currently specified target -h => restricted output: only presents the activated phases and does not provide full information
release -h => as -h in debug but without phases info -h => as -h in debug but with phases info