v0.17

• Pygments syntax highlighting for the Python console (pycon lexer) now
  uses the python3 option, and the default Python lexer is now
  python3 (#156).

• Added support for JavaScript (#147; thanks to Nathan Carter).

• Updated Julia support for Julia versions 0.6 (#107), and 0.7 and 1.0 (#126,
  #130).

• There are now meaningful error messages for the Julia console when Weave.jl
  is not installed or raises errors (#131).

• pythontexcustomcode and \pythontexcustomc now set
  pytex.context (#65).

• Added support for R. The R family of commands and environments
  (\R, \Rc, Rcode, ...) executes code as a script.
  There is currently no utilities class or equivalent. The Rcon family
  (Rconsole) executes code to emulate an interactive R session (#121).

• fancyvrb settings from \setpythontexfv and console
  environments now work with Julia and R consoles.

• pythontexcustomcode now works with juliacon. There are now proper
  juliaconcode and Rconcode environments that execute code but
  typeset nothing, to parallel pyconcode (#134).

• Added support for Perl with the perl and pl families of commands
  and environments. There is currently no utilities class or equivalent.

• Added support for Perl 6 with the perlsix and psix families of
  commands and environments (#104). There is currently no utilities class or
  equivalent.

• Updated Rust support by using dyn with traits in utilities object.

• Under Windows, capitalization of script paths in stderr is now
  preserved.

• Fixed a bug that prevented the sub environment from working with
  depythontex (#155).

• Fixed a bug in checking mtime of dependencies to see if they have been
  modified while pythontex is running. The check failed for dependencies
  that do not exist or were deleted before pythontex can read them
  (#136).