Asymptote is a powerful descriptive vector graphics language for technical drawing, inspired by MetaPost but with an improved C++-like syntax. It provides for figures the same high-quality level of typesetting that LaTeX does for scientific text. Asymptote is a programming language as opposed to just a graphics program. It can exploit the best features of script (command-driven) and graphical user interface (GUI) methods. High-level graphics commands are implemented in the language itself, allowing them to be easily tailored to specific applications. License: GNU General Public License (GPL) Changes: Python-style array slices were added. The array virtual field A.keys returns the indices of initialized entries. The concat routine can take an arbitrary number of arguments. A bounding path is stored in the object structure to allow connections to noncardinal boundary points. The buildcycle algorithm was improved. The visibility of unsplit solid slices is resolved. HSV colorspace support was added. The dependence of non-PDF animations on the animate.sty package was removed by renaming animate.asy to animation.asy. Transparency groups are respected by xasy. TeX diagnostics were improved.

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