# \[ANN\] New release of Menhir (20181113)

**URL:** https://discuss.ocaml.org/t/ann-new-release-of-menhir-20181113/2888
**Category:** Ecosystem
**Tags:** announce
**Created:** [November 14, 2018, 12:54pm UTC](https://discuss.ocaml.org/t/ann-new-release-of-menhir-20181113/2888 "2018-11-14T12:54:46Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![fpottier](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.ocaml.org/fpottier/32/677_2.png) [@fpottier](https://discuss.ocaml.org/u/fpottier)
#### Post date: [November 14, 2018, 12:54pm UTC](https://discuss.ocaml.org/t/ann-new-release-of-menhir-20181113/2888/1 "2018-11-14T12:54:46Z")

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Hello,

I would like to announce a new release of Menhir, 20181113. It is  
available via opam (`opam update && opam install menhir`).

[https://gitlab.inria.fr/fpottier/menhir/blob/master/CHANGES.md](https://gitlab.inria.fr/fpottier/menhir/blob/master/CHANGES.md)

The main change is an experimental **new syntax** for rules. The new syntax is  
slightly more pleasant and powerful than the old syntax. The old syntax  
remains available; the user chooses between the two syntaxes on a per-rule  
basis.

This blog post presents a couple demos that use the new syntax:

[http://gallium.inria.fr/blog/parser-construction-menhir-appetizers/](http://gallium.inria.fr/blog/parser-construction-menhir-appetizers/)

For expert users, I have also written a brief a summary of the differences  
between the old and new syntaxes:

[https://gitlab.inria.fr/fpottier/menhir/blob/master/doc/new-rule-syntax-summary.md](https://gitlab.inria.fr/fpottier/menhir/blob/master/doc/new-rule-syntax-summary.md)

Happy parsing,