• add support for native and ppx_let syntax (#204, @thedufer)

• Fix bug in consumed (and consumed_bigstring) when its argument contained a commit (#199)

Breaking Changes

• count fails if its argument is negative, rather than raising. (#192)
• parse_string and parse_bigstring take a required consume argument, specifying whether the parse is expected to consume a prefix of the input, or the entire input. The previous behavior was Prefix. (#196)

Features and Enhancements

• improve the failure message of satisfy (#185)
• add consumed and consumed_bigstring combinators, which take a parser t and returns a parser that produces the range of input that t consumed. (#163)
• make pos and available part of the public API as expert, undocumented parsers. (#195)

• Implement "trampolining" for the fix combinator when running in js_of_ocaml (#187, @hhugo)
• Validate that the input is positive for take-like combinators (#190)

• Fix bug introduced in #181 (#182)

Bugfixes

• Fix bug in Input.take_while (#181)

New Features and Enhancements

• Add int8 constructor (#171)
• Eliminate some redundant length checks (#176)
• Various documentation fixes (#167, #172, #177, #178, 179, #178)

• Add bounds checking to advance (#166)

• Port to dune (#161)
• Fix typo in state_to_option docstring (#164)

Features

• Implement with_buffered_parse_state for the lwt package, which in conjunction with parse allows one to continue parsing unconsumed input. (#156)

Improvements

• Upgrade to OPAM2 (#157)
• Various documentation fixes (#147, #149, #158, #159)

Breaking Changes

• Add constant-checking int parsers. Translate calls to intn to get_intn (e.g., int32 becomes get_int32) when migrating to this version. (#139)

Bug Fixes

• Fix error messages in little-endian int parsers (#141)
• Fix bug in <|> operator that did not respect commit points (#146)

Improvements

• Improve documentation of bigstring operations (#145, h/t @dinosaure)
• Allow choice to specify error when all alternatives fail (#143)
• Improve performance of some character parsers (#140)
• Switch to using bigstringaf for bigstring operations (#138)
• Remove references to Oasis build process in README (#137)