v2.2

• All uses of \ShellEscape (\write18) no longer wrap file names and paths
  with double quotes. This allows a cache directory to be specified relative
  to a user's home directory, for example, ~/minted_cache. cachedir and
  outputdir paths containing spaces will now require explicit quoting of
  the parts of the paths that contain spaces, since minted no longer
  supplies quoting. See the updated documentation for examples (#89).
• Added breakbefore, breakbeforegroup, breakbeforesymbolpre, and
  breakbeforesymbolpost. These parallel breakafter*. It is possible to
  use breakbefore and breakafter for the same character, so long as
  breakbeforegroup and breakaftergroup have the same setting (#117).
• Added package options finalizecache and frozencache. These allow the
  cache to be prepared for (finalizecache) and then used (frozencache) in
  an environment in which -shell-escape, Python, and/or Pygments are not
  available. Note that this only works if minted content does not need to
  be modified, and if no settings that depend on Pygments or Python need to
  be changed (#113).
• Style names containing hyphens and underscores (paraiso-light,
  paraiso-dark, algol_nu) now work (#111).
• The shellesc package is now loaded, when available, for compatibility
  with luatex 0.87+ (TeX Live 2016+, etc.). \ShellEscape is now used
  everywhere instead of \immediate\write18. If shellesc is not available,
  then a \ShellEscape macro is created. When shellesc is loaded, there
  is a check for versions before v0.01c to patch a bug in v0.01b (present in
  TeX Live 2015) (#112).
• The bgcolor option now uses the snugshade* environment from the framed
  package, so bgcolor is now compatible with page breaks. When bgcolor
  is in use, immediately preceding text will no longer push the minted
  environment into the margin, and there is now adequate spacing from
  surrounding text (#121).
• Added missing support for fancyvrb's labelposition (#102).
• Improved fix for TikZ externalization, thanks to Patrick Vogt (#73).
• Fixed breakautoindent; it was disabled in version 2.1 due to a bug in
  breakanywhere.
• Properly fixed handling of \MintedPygmentize (#62).
• Added note on incompatibility of breaklines and obeytabs options.
  Trying to use these together will now result in a package error (#99).
  Added note on issues with obeytabs and multiline comments (#88). Due to
  the various obeytabs issues, the docs now discourage using obeytabs.
• Added note to FAQ on fancybox and fancyvrb conflict (#87).
• Added note to docs on the need for \VerbatimEnvironment in environment
  definitions based on minted environments.