This is a list of planned feature improvements to graphviz along with an indication of when it’s likely to be implemented (note that these time scales are in relation to releases, not actual time; however, it is quite possible that the order will not be adhered to).
Quickstart-style documentation to help users get going with graphviz quickly.
Add nicer syntax for record labels, and specifying ports in Monadic Dot graphs.
Add support for custom shapes; in particular, a nice way of re-defining the
Shape datatype (as just adding a non-nullary constructor would make it unwieldy to make sure tests, etc. were kept up-to-date).
Define new classes to distinguish between printing/parsing Attribute values and other values (as only the former requires quoted variants).
Clean up AttributeGenerator and get it to use a better pretty-printing library.
Improve the test suite such that the generated
DotGraph values are valid (and thus can be passed to Graphviz proper). This may not in fact be possible as guaranteeing an arbitrary
Attribute is valid is rather tricky (as the value itself needs to be verified, especially stateful ones).
Switch to a proper test-suite library rather than the hand-rolled one currently being used.
Add support for clusters as endpoints of edges.