RDF 1.2 is now covered - there are still a few things to do but
RDF syntax (Turtle, RDF/XML, N-Triples, Trig, N-Quads, binary formats)
and processing with SPARQL are done. SPARQL query/update and result
formats handle RDF 1.2 features.
A "preliminary, complete implementation".
RRX RDF/XML has been brought up-to-date with RDF 1.2 features as has the
RDF/XML writers (plain, and pretty)
(ARP1 is left alone.)
The working group has not finished yet some there may be small changes;
for example, strict compliance and error conditions in RDF/XML aren't
settled yet.
Protocol "&version=" and controlling the printing of VERSION (a new
Turtle directive) are not done.
Pretty printing in Turtle isn't done. Output is correct - it is the
right triples - but not pretty.
Support for RDF 1.2 in JSON-LD - there is a JSON-LD working group now
operating which includes support for RDF 1.,2 features in its charter.
Non-W3C spec languages are not done - TriX, RDF/JSON.
Andy