Contributing a “What’s New” Entry¶
Iris uses a file named
latest.rst to keep a draft of upcoming changes
that will form the next release. Contributions to the What’s New in Iris
document are written by the developer most familiar with the change made.
The contribution should be included as part of the Iris Pull Request that
introduces the change.
latest.rst and the past release notes are kept in
docs/src/whatsnew/. If you are writing the first contribution after
an Iris release: create the new
latest.rst by copying the content from
latest.rst.template in the same directory.
Since the Contribution categories include Internal changes, all Iris Pull Requests should be accompanied by a “What’s New” contribution.
If changes to
latest.rst are being suggested in several simultaneous
Iris Pull Requests, Git will likely encounter merge conflicts. If this
situation is thought likely (large PR, high repo activity etc.):
PR author: Do not include a “What’s New” entry. Mention in the PR text that a “What’s New” entry is pending
PR reviewer: Review the PR as normal. Once the PR is acceptable, ask that a new pull request be created specifically for the “What’s New” entry, which references the main pull request and titled (e.g. for PR#9999):
What’s New for #9999
PR author: create the “What’s New” pull request
PR reviewer: once the “What’s New” PR is created, merge the main PR. (this will fix any cirrus-ci linkcheck errors where the links in the “What’s New” PR reference new features introduced in the main PR)
PR reviewer: review the “What’s New” PR, merge once acceptable
These measures should mean the suggested
latest.rst changes are outstanding
for the minimum time, minimising conflicts and minimising the need to rebase or
merge from trunk.
Writing a Contribution¶
As introduced above, a contribution is the description of a change to Iris which improved Iris in some way. As such, a single Iris Pull Request may contain multiple changes that are worth highlighting as contributions to the what’s new document.
The appropriate contribution for a pull request might in fact be an addition or change to an existing “What’s New” entry.
Each contribution will ideally be written as a single concise entry using a
reStructuredText auto-enumerated list
#. directive. Where possible do not
exceed column 80 and ensure that any subsequent lines of the same entry are
aligned with the first. The content should target an Iris user as the audience.
The required content, in order, is as follows:
Names of those who contributed the change. These should be their GitHub user name. Link the name to their GitHub profile. E.g.
`@tkknight <https://github.com/tkknight>`_ changed...
The new/changed behaviour
Context to the change. Possible examples include: what this fixes, why something was added, issue references (e.g.
:issue:`9999`), more specific detail on the change itself.
Pull request references, bracketed, following the final period. E.g.
A trailing blank line (standard reStructuredText list format)
#. `@tkknight <https://github.com/tkknight>`_ changed changed argument ``x`` to be optional in :class:`~iris.module.class` and :meth:`iris.module.method`. This allows greater flexibility as requested in :issue:`9999`. (:pull:`1111`, :pull:`9999`)
The above example also demonstrates some of the possible syntax for including links to code. For more inspiration on possible content and references, please examine past what’s What’s New in Iris entries.
The structure of the what’s new release note should be easy to read by users. To achieve this several categories may be used.
- 📢 Announcements
General news and announcements to the Iris community.
- ✨ Features
Features that are new or changed to add functionality.
- 🐛 Bug Fixes
A bug fix.
- 💣 Incompatible Changes
A change that causes an incompatibility with prior versions of Iris.
- 🔥 Deprecations
Deprecations of functionality.
- 🔗 Dependencies
Additions, removals and version changes in Iris’ package dependencies.
- 📚 Documentation
Changes to documentation.
- 💼 Internal
Changes to any internal or development related topics, such as testing, environment dependencies etc.