0.27.0

CHANGES:

• Update expansion context to leave out value name when multiple are
  defined at once. (#351, @ceastlund)

• Add support for OCaml 5.0 (#348, @pitag-ha)

• Add Code_path.enclosing_value (#349, @ceastlund)

• Add Code_path.enclosing_module (#346, @ceastlund)

• Expand code generated by ~enclose_intf and ~enclose_impl (#345, @ceastlund)

• Add type annotations to code generated by metaquot (#344, @ceastlund)

• Fix typo in description field of dune-project (#343, @ceastlund)

• Fix Ast_pattern.many (#333, @nojb)

• Fix quoter and optimize identifier quoting (#327, @sim642)

• Driver, when run with --check: Allow toplevel_printer attributes (#340, @pitag-ha)

• Documentation: Add a section on reporting errors by embedding extension nodes
  in the AST (#318, @panglesd)

• Driver: In the case of ppxlib internal errors, embed those errors instead of
  raising to return a meaningful AST (#329, @panglesd)

• API: For each function that could raise a located error, add a function that
  return a result instead (#329, @panglesd)

0.26.0

CHANGES:

• Bump ppxlib's AST to 4.14/5.00 (#320, @pitag-ha)

0.25.0

CHANGES:

• Added error_extensionf function to the Location module (#316, @panglesd)

• Ast patterns: add drop and as patterns (#313 by @Kakadu, review by @pitag-ha)

• Fixed a bug resulting in disscarded rewriters in the presence of
  instrumentations, as well as a wrong order of rewriting (#296, @panglesd)

• Driver: Append the last valid AST to the error in case of located exception
  when embedding errors (#315, @panglesd)

0.24.0

CHANGES:

• Add support for OCaml 4.14 (#304, @kit-ty-kate)

• Expand nodes before applying derivers or other inline attributes based
  transformation, allowing better interactions between extensions and
  derivers (#279, #297, @NathanReb)

• Add support for registering ppx_import as a pseudo context-free rule (#271, @NathanReb)

• Add input_name to the Expansion_context.Extension and Expansion_context.Deriver modules (#284, @tatchi)

• Improve gen_symbol to strip previous unique suffix before adding a new one (#285, @ceastlund)

• Improve name_type_params_in_td to use prefixes a, b, ... instead of v_x. (#285, @ceastlund)

• Fix a bug in type_is_recursive and really_recursive where they would
  consider a type declaration recursive if the type appeared inside an attribute
  payload (#299, @NathanReb)

0.23.0

CHANGES:

• Drop Parser from the API (#263, @pitag-ha)

• Location: add set_filename and Error.get_location (#247, @pitag-ha)

• Drop dependency on OMP2 (#187, @pitag-ha)

• Make OMP1 a conflict (#255, @kit-ty-kate)

• Drop Syntaxerr from the public API. Doesn't affect any user in the
  ppx universe (#244, @pitag-ha)

• Add a lower-bound constraint for Sexplib0 (#240, @pitag-ha)

• Fix bug due to which unwanted public binaries got installed when installing
  ppxlib (#223, @pitag-ha)

• Add Keyword.is_keyword to check if a string is an OCaml keyword
  (#227, @pitag-ha)

• Remove Lexer.keyword_table: use Keyword.is_keyword instead
  (#227, @pitag-ha)

• Remove Lexer from the API: it was the same as the compiler-libs
  Lexer (#228, @pitag-ha)

• Remove the modules Ast_magic, Compiler_version, Js, Find_version,
  Convert, Extra_warnings, Location_error, Select_ast and
  Import_for_core from the API: they are meant for internal use and
  aren't used by any current downstream user in the
  ppx universe (#230, @pitag-ha)

• Remove compiler specific helper functions from Location. They aren't used
  by any current downstream user in the
  ppx universe (#238, @pitag-ha)

• Allow "%a" when using Location.Error.createf (#239, @mlasson)

• Fix in Location: make raise_errorf exception equivalent to exception
  Error (#242, @pitag-ha)

• Fix in Pprintast: correctly pretty print local type substitutions, e.g.
  type t := ... (#261, @matthewelse)

• Add Ast_pattern.esequence, for matching on any number of sequenced
  expressions e.g. do_a (); do_b (); .... (#264, @matthewelse)

• Expose a part of Ast_io in order to allow reading AST values from binary
  files (#270, @arozovyk)

0.22.2

CHANGES:

• Make ppxlib compatible with 4.13 compiler (#260, @kit-ty-kate)

0.22.1

CHANGES:

• Fix location in parse error reporting (#257, @pitag-ha)

0.21.1

CHANGES:

• Fix location in parse error reporting (#256, @pitag-ha)

0.22.0

CHANGES:

• Bump ppxlib's AST to 4.12 (#193, @NathanReb)

0.21.0

CHANGES:

• Fix ppxlib.traverse declaration and make it a deriver and not a rewriter
  (#213, @NathanReb)

• Driver (important for bucklescript): handling binary AST's, accept any
  supported version as input; preserve that version (#205, @pitag-ha)

• -as-ppx: take into account the -loc-filename argument (#197, @pitag-ha)

• Add input name to expansion context (#202, @pitag-ha)

• Add Driver.V2: give access to expansion context in whole file transformation
  callbacks of register_transformation (#202, @pitag-ha)

• Driver: take -cookie argument into account, also when the input is a
  binary AST (@pitag-ha, #209)

• run_as_ppx_rewriter: take into account the arguments
  -loc-filename, apply and dont-apply (#205, @pitag-ha)

• Location.Error: add functions raise and update_loc
  (#205, @pitag-ha)