unikernel/duniverse/dune_/doc/advanced/package-version.rst

@@ -0,0 +1,16 @@
+Package Version
+===============
+
+.. TODO(diataxis)
+   - reference: environment - packages
+
+Dune determines a package's version by looking at the ``version`` field in the
+:doc:`/reference/dune-project/package`. If the version field isn't set,
+it looks at the toplevel ``version`` field in the ``dune-project`` field. If
+neither are set, Dune assumes that we are in development mode and reads the
+version from the VCS, if any. The way it obtains the version from the VCS is
+described in :ref:`the build-info section <build-info>`.
+
+When installing the files of a package on the system, Dune
+automatically inserts the package version into various metadata files
+such as ``META`` and ``dune-package`` files.