Release Plan for Dune 2.9

Dune 2.9 will be the last release for the 2.x series. It is meant to be a bugfix and minimal feature set release, such as improvements to editor support or Coq build rules.

A tentative release date is mid-May 2021.

2.9 will be almost exclusively consist of backports of bugfixes / PRs already merged into main, except for the rare cases where the change has not a counterpart for main.

Pull Request workflow:

We will track pull requests scheduled for 2.9 using a Github Project, in particular: https://github.com/ocaml/dune/projects/3

Columns there are meant to track the lifetime of a PR, from its inclusion in main, to its release in 2.9.

In order to get a PR included in 2.9 please:

• submit a PR for main, but milestone 2.9, and add it to the column "Pending Approval". The changelog should be added under the 2.9 section of the CHANGES file.
• once the PR is merged in main, it will be moved to the "Pending Backport Column", please prepare a backported PR , but targeting the 2.9 branch.
• once the backport PR is submitted, add the backport PR to the "Pending CI" column.
• once CI is ready, the 2.9 Release Managers will merge the PR.

Things to check before the release:

• Changes section should be coherent between main and 2.9