OCaml

The industrial-strength functional programming language | safe, expressive, performant

| Changelog + OCaml Planet RSS feeds

[OCaml @ocaml_org]

[Changelog] Odoc 3.2.1: CHANGES:

Fixed

* Fix #1426, which broke docs in packages including base in OCaml 5.5.0
(@jonludlam, #1427)
* Fix #1429, which broke docs in packages including merlin-lib (@jonludlam,
#1430) * Fix #1431, a regression… https://t.co/eRWObOg2Ov

[OCaml @ocaml_org]

[Changelog] Odoc 3.2.0: We're happy to announce the release of Odoc 3.2.0.

This release brings:

* Support for OCaml 5.5.0 (#1406).
* Support for the OxCaml compiler variant (#1399).
* Persistent LaTeX macros in the HTML/KaTeX backend (#1391), so a… https://t.co/0Zuawybv3D

[OCaml @ocaml_org]

[Changelog] Merlin 5.7.1-504: We're happy to announce the release of Merlin 5.7.1-504, a patch release for the OCaml 5.4 series. This release brings:

* A fix for a typer cache invalidation bug (#2062) where Merlin would not pick up newly created .cmi… https://t.co/TfmvaR8SwR

[OCaml @ocaml_org]

[Changelog] Utop 2.17.0: We're happy to announce the release of utop 2.17.0.

This release brings:

* Support for OCaml 5.5 (#510).
* Decoupling of utop.el from tuareg-mode (#511): tuareg is now loaded lazily, and other OCaml major modes for Emacs… https://t.co/XVEXcmtd85

[OCaml @ocaml_org]

[Changelog] Dune-release 2.2.1: We're happy to announce the release of Dune-release 2.2.1.

This release adds a CLI flag to mark a GitHub release as a prerelease, exposing capability that already existed in the GitHub REST API to the dune-release… https://t.co/8tlMds1GX9

[OCaml @ocaml_org]

[Changelog] Mdx 2.5.2: We're happy to announce the release of MDX 2.5.2.

This is a small compatibility release that adjusts MDX's toplevel support to work with OCaml 5.5.

For more details, see the full changelog below. https://t.co/Ldcv3BaryI

[OCaml @ocaml_org]

[Changelog] OCamlFormat 0.29.0: We're happy to announce the release of OCamlFormat 0.29.0.

CHANGES:

Highlight

*

* Support OCaml 5.5 syntax (#2772, #2774, #2775, #2777, #2780, #2781, #2782, #2783, @Julow) The update brings several tiny… https://t.co/RfojSekODZ

[OCaml @ocaml_org]

[Backstage OCaml] OCaml 5.5.0-beta1: With most developer tools available and the good stability of the compiler, I am happy to announce the first beta release of OCaml 5.5.0.

Compared to the last alpha, this new version improves the manpage for… https://t.co/AyLXYI9f91

[OCaml @ocaml_org]

[Backstage OCaml] OCaml-LSP 1.26.0-5.5~preview: A preview release of OCaml-LSP for the OCaml 5.5 series is available. Notable changes:

* A new destruct custom request (#1583), intended to let clients such as ocaml-eglot trigger the command directly… https://t.co/LoepJSnPXM

[OCaml @ocaml_org]

for more context see https://t.co/UVyELytbz0

[OCaml @ocaml_org]

please participate in the OCaml Users Survey 2026, still open until and including May 25, 2026!

link below

[OCaml @ocaml_org]

https://t.co/xaAw9cxwAF

[OCaml @ocaml_org]

[Changelog] Dune 3.23.1: The Dune team is pleased to announce the release of dune 3.23.1.

This is a patch release consisting of bug fixes. See the full changelog for all the changes and for attribution to the contributors who made it all possible.… https://t.co/wS6N4rEGbC

[OCaml @ocaml_org]

[Jobs] Senior Systems Software Engineer at Cloud Software Group: Senior Systems Software Engineer at Cloud Software Group

Location: Remote, United Kingdom https://t.co/KxF968NNRn

[OCaml @ocaml_org]

[Changelog] OCaml-LSP 1.26.0: This new release of OCaml-LSP brings several new features and improvements, including new custom requests, support for range formatting, and enhanced hover capabilities.

See the related announcement on the Discuss forums. https://t.co/wFZHFWnRBY

[OCaml @ocaml_org]

[Changelog] Merlin 5.7.0-504: We're happy to announce the release of Merlin 5.7.0-504. This release comes with a number of bug fixes and improvements to Merlin.

For more details, we encourage you to delve into the full changelog.

See the related… https://t.co/b75zCr9e5e

[OCaml @ocaml_org]

[Changelog] Odoc 3.2.0: CHANGES:

Added

* Allow persistent latex macros in HTML/KaTeX backend (@dlesbre, #1391)

* markdown-generate command now accepts multiple .odocl files in a single
invocation, eliminating the need for shell scripting… https://t.co/OvxISDNTnC

[OCaml @ocaml_org]

[Changelog] Merlin 5.7.1-504: CHANGES:

Thu Apr 30 14:15:42 CEST 2026

* merlin library

* Fix a cache invalidation issue due to the introduction of hidden deps in
OCaml 5.2. (#2062)

* index format

* Merged indexes now point to… https://t.co/FWs6yUpj53

[OCaml @ocaml_org]

[Changelog] Merlin 5.7.0-504: CHANGES:

Thu Apr 09 09:59:38 WAT 2026

* merlin library

* Implement new refactor-extract-region command for extracting region to a fresh let binding (warning: this feature is still experimental) (#1948)
* Add… https://t.co/EtWftYjXjW

[OCaml @ocaml_org]

[Changelog] Utop 2.17.0: CHANGES:

* Add support for OCaml 5.5 (#510 @anmonteiro)
* Add support for neocaml or other major modes in utop.el (#511, @bbatsov) https://t.co/RECb70EjMU