Document new wheels and build dependencies

Author: QuLogic

doc/api/prev_api_changes/api_changes_3.5.0/development.rst

@@ -18,6 +18,27 @@ some :ref:`optional dependencies <optional_dependencies>` are being bumped:
 This is consistent with our :ref:`min_deps_policy` and `NEP29
 <https://numpy.org/neps/nep-0029-deprecation_policy.html>`__
 
+New wheel architectures
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Wheels have been added for:
+
+- Python 3.10
+- PyPy 3.7
+- macOS on Apple Silicon (both arm64 and universal2)
+
+New build dependencies
+~~~~~~~~~~~~~~~~~~~~~~
+
+Versioning has been switched from bundled versioneer to `setuptools-scm
+<https://github.com/pypa/setuptools_scm/>`__ using the
+``release-branch-semver`` version scheme. The latter is well-maintained, but
+may require slight modification to packaging scripts.
+
+The `setuptools-scm-git-archive
+<https://pypi.org/project/setuptools-scm-git-archive/>`__ plugin is also used
+for consistent version export.
+
 New runtime dependencies
 ~~~~~~~~~~~~~~~~~~~~~~~~
 

doc/users/prev_whats_new/whats_new_3.5.0.rst

@@ -503,9 +503,9 @@ Backend-specific improvements
 Version information
 ===================
 
-We switched to the `release-branch-semver`_ version scheme. This only affects,
-the version information for development builds. Their version number now
-describes the targeted release, i.e. 3.5.0.dev820+g6768ef8c4c.d20210520 is 820
+We switched to the `release-branch-semver`_ version scheme of setuptools-scm.
+This only affects the version information for development builds. Their version
+number now describes the targeted release, i.e. 3.5.0.dev820+g6768ef8c4c is 820
 commits after the previous release and is scheduled to be officially released
 as 3.5.0 later.