pgfplot: groupplots — how old?

Question

I'm trying to reproduce some examples from the pgfplot documentation, but \usepgflibrary{groupplots} does not succeed, while shapes does. In the documentation I can't find a hint if this feature is too new for my distribution, I have texlive-full in version 2009-15 ... is this too old?

The error message is pretty clear:

! I can't find file `pgflibrarygroupplots.code.tex'.
<argument> ...input pgflibrary\pgf@temp .code.tex 
                                              \catcode `\@ =\csname pgf@...
l.5 \usepgflibrary{groupplots}

But as I'm working collaborative with colleagues, installing a more recent version is not a solution.

EDIT

This is the code I try to compile.

\documentclass{minimal}
\usepackage{pgfplots}
\usepackage{tikz}
\usepgfplotslibrary{groupplots}

\begin{document}
\begin{tikzpicture}

\begin{groupplot}[
group style={
    group name=my plots,
    group size=2 by 2,
    xlabels at=edge bottom,
    ylabels at=edge left
},height=4cm, width=4cm]
\nextgroupplot
\addplot coordinates {(0,0) (1,1) (2,2)};
\nextgroupplot
\addplot coordinates {(0,2) (1,1) (2,0)};
\nextgroupplot
\addplot coordinates {(0,2) (1,1) (2,1)};
\nextgroupplot
\addplot coordinates {(0,2) (1,1) (1,0)};
\end{groupplot}

\end{tikzpicture}
\end{document}

Here's what I get:

! I can't find file `pgflibrarypgfplots.groupplots.code.tex'.
<argument> ...input pgflibrary\pgf@temp .code.tex 
                                              \catcode `\@ =\csname pgf@...
l.4 \usepgflibrary{pgfplots.groupplots}

(Press Enter to retry, or Control-D to exit)

Answer 1

The problem is simply that groupplots is a library from the pgfplots package. Thus it needs to be used as:

\usepgflibrary{pgfplots.groupplots}
% or
\usepgfplotslibrary{groupplots}

For easy reference in the answer, the groupplots package was added to the pgfplots tree around October 2009. The 1.4 version was released on: 7-14-2010. I am not entirely sure about the first release version where groupplots was used.