Additions

• ppxlib 0.28.0 and higher compatibility (#413).
• ReScript 10 support (#405, reported by Quinn Dougherty).
• ReScript 11 support (#422).

Bugs fixed

• Show sources of .re files in HTML view when build system is Dune (#404, reported by Konstantin Olkhovskiy).
• Respect [@coverage off] in or-patterns (#414, reported by Nora Sandler).
• Add <packages> to Cobertura format (#420, Maxim Grankin).
• Stack overflow in HTML generation (#421, Allan Blanchard).

Changes

• Prebuilt binaries for npm are now built on Ubuntu 20.04 and macOS 11. They were previously built on Ubuntu 18.04 and macOS 10.

Additions

• ppxlib 0.26.0 and 0.27.0 compatibility (#400, Sonja Heinze).

Bugs fixed

• Collation of subdirectories in HTML report (#401, Luke Maurer).

Bugs fixed

• OCaml 5.00 compatibility (#399, @kit-ty-kate).

Additions

• HTML: collapsible tree index for large projects, activated by --tree option (#396, Arvid Jakobsson).

Bugs fixed

• Don't instrument lazy values which are compiled as already forced (#398, reported by @Ngoguey42).
• Use Sys.backend_type to detect js_of_ocaml (#397, Pat Rondon).
• Text summary report: show files with 0 points as having 100% coverage (f3b9108).

Bugs fixed

• Emit point data as arrays instead of as lists, to avoid exposing JavaScript tooling to large AST structures (#395, Jaap Frolich).
• Reporter: look for files relative to Dune workspace root (#369).

Additions

• Reports in Cobertura XML format, used on GitLab (#383, Valentin Chaboche).
• .coverage file merging (#389, Valentin Chaboche).
• Environment variable BISECT_SIGTERM and PPX option --bisect-sigterm, which cause the runtime to write .coverage files upon receiving SIGTERM (#390, Arvid Jakobsson).
• bisect-ppx-report: verbose logging now hidden behind new --verbose flag (4b36eb4).
• HTML: minimal metadata so that links to reports are decorated by social media platforms (#373).

Bugs fixed

• Adapt to change in how ReScript represents -> (#382, reported by Danni Friedland).
• Broken installation on pnpm (#381, reported by Tillmann Rendel).
• bisect-ppx-report: clearer error messages (#386, 6327d04).
• HTML: visit count tooltip not visible on last line of report (#374).

Bugs fixed

• Downgrade binaries to require Ubuntu only 18.04, not 20.04 (6f86646, reported by Peter Piekarczyk).

Changes

• Remove dependency on Marshal from Bisect_common to adapt to upstream changes in ReScript (#376, reported by John Doneth).

Bugs fixed

• Do not instrument React.forwardRef and React.memo (#375, reported by Mathieu Haton).

Changes

• Port to ppxlib (#327, Sonja Heinze).
• CSS: use ligature fonts, if installed (#339).
• Internal: switch to Dune cram tests, finding lots of bugs in the process (beb80b3, 593a7c2, #352).

Bugs fixed

• Workaround for typing issue with instrumentation of or-patterns under GADTs; includes a new match instrumenter (#325, reported by Mehdi Bouaziz).
• The second subexpression of (||) and (&&) is in tail position iff the whole expression is in tail position; Bisect was unconditionally wrapping the second expression in successor code (#359, reported by Benjamin Monate).
• HTML: words that have an instrumentation point on one of their characters were not searchable (#346).
• Don't clobber the global random number generator (#344).
• (or) nested inside (||) not properly instrumented (#347).
• Subexpressions of Pexp_newtype were always treated as if they were in tail position (#348).
• assert instrumentation was placed at the wrong point in the generated code (#349).
• assert false should not be instrumented; the point is unreachable (#355).
• Instrumentation of or-patterns inside local open patterns could trigger unused open warning (#350).

Removed

These removals were planned and announced in the 2.0.0 release.

• PPX option --mode (#200).
• PPX option --no-comment-parsing (#202).
• PPX option --exclude (#244).
• PPX option --exclude-file, which has been renamed to --exclusions (#245).
• Reporter options --html, --text, --coveralls, which have been replaced by html, summary, send-to subcommands, respectively (#145).
• Support for discovering .out files. Bisect switched to extension .coverage in 2.0.0 (#110).
• --dump, --csv, and the old-style text report (#251).
• The old command line, including single-dashed (-) multi-character options, and usage of bisect-ppx-report without a subcommand (such as bisect-ppx-report html) (#145).