  A newly upgraded version of the BCVEGPY, a generator for hadronic production
of the meson $B_c$ and its excited states, is available. In comparison with the
previous one [C.H. Chang, J.X. Wang and X.G. Wu, Comput. Phys. Commun. {\bf
175}, 624 (2006)], the new version is to apply an improved hit-and-miss
technology to generating the un-weighted events much more efficiently under
various simulation environments. The codes for production of $2S$-wave $B_c$
states are also given here.
