Changes in version 2.9 o Fixed a bug in the C code of Graphviz which manifests itself when the following options are given to GCC "-Wformat -Wformat-security -Werror=format-security -D_FORTIFY_SOURCE=2", this is the case for Ubuntu 12.04. Reported by Vladimir Zhurov , Venkat Seshan and Chong Tang . Changes in version 2.7 o Fixed include statements in Graphviz code. Changes in version 2.5 o Expose mai argument in plot,Ragraph-method. o Changed the LICENSE to EPL. o Fixed some wrong text in the DESCRIPTION file. o Fixed pieGylph to adress the issue of warning messages about rep(NULL) (reported by Cristobal Fresno Rodríguez ). o Updated Imports, Depends, NAMESPACE as per R CMD check requirements. o Fixing issue with the lt~obsolete.m4 file(s) in Graphviz; R CMD check was issueing a warning. o Moved vignettes from inst/doc to vignettes directory. Changes in version 2.4 o Backported the pieGylph fix to the release branch. Changes in version 2.3 o Fixing bug in Graphviz on OpenBSD regarding sincos (Thanks to Rainer Hurling). o Now using path.expand to fix tilde-expansion. o We no longer include ; which seemingly was not needed (Thanks to Brian D. Ripley). o Fix handling of fontsize attrib for nodes and edges (seems it has been broken at least since 2006). Changes in version 2.2 o Plotting now longer accepts border.lwd or border.col. Instead of border.col use color. Instead of border.lwd, you need to use the renderGraph/layoutGraph interface. This fixes a long standing bug where Rgraphviz writes illegal dot files. unitTest has been added. o bugfix to renderNodes (used in renderGraph) for nodes with shape = "triangle". It now works. o bugfix to renderNodes (used in renderGraph) for using node-specific lwd and shapes either "triangle", "ellipse" or "circle". It now works. Changes in version 2.1 o Rgraphviz now requires Graphviz >= 2.16. o Added graphvizCapabilities() that reports the capabilities of Graphviz. This requires Graphviz >= 2.28 and returns NULL if the Rgraphviz installation does not support it. o Rgraphviz now comes bundled with Graphviz 2.28, greatly simplifying installation. o Numerous bugfixes for bugs introduced in the 2.x.x versions.