option “final” in beamerposter

Question

What is the role of "final" in

\documentclass[final]{beamer}
\usepackage[size=a0,orientation=portrait]{beamerposter}

? It seems nothing changes when I remove it. Thank you.

Answer 1

I could not find a hint on a class or package option final in neither the beamer or beamerposter documentation nor in the respective .cls or .sty file. I'd therefore assume that the option final is not known and not used and therefore has no effect on the output.

Other document classes such as article throw a warning upon using an unknown option. This is shown by the following MWE that gives this warning: LaTeX Warning: Unused global option(s):[abcdef].

\documentclass[abcdef]{article}
\begin{document}
some text
\end{document}

If one tries the same nonsense option with the beamer class (as in the following example), no warning message is generated:

\documentclass[abcdef]{beamer}
\begin{document}
\begin{frame}
Some text
\end{frame}
\end{document}