Hi all, D 1.015, just released (thx Walter), fixes some GC problem, as in http://www.digitalmars.com/d/changelog.html#new1_015 but the array concatenation bug is still present (just tried!) and I proceeded to file it on Bugzilla (and patch it again in Phobos): http://d.puremagic.com/issues/show_bug.cgi?id=1258 ciao, Babele