chore: blank what's new in 4.3

Author: dtrudg

index.rst

@@ -19,7 +19,7 @@ Getting Started & Background Information
 .. toctree::
    :maxdepth: 2
 
-   What's New in {Singularity} 4.2 <new>
+   What's New in {Singularity} 4.3 <new>
 
    Introduction to {Singularity} <introduction>
    Quick Start <quick_start>

new.rst

@@ -1,62 +1,9 @@
 .. _whats_new:
 
 ###############################
-What's New in {Singularity} 4.2
+What's New in {Singularity} 4.3
 ###############################
 
-This section highlights important changes and new features in {Singularity} 4.2
+This section highlights important changes and new features in {Singularity} 4.3
 that are of note to users. See also the "What's New" section in the Admin Guide
 for administrator-facing changes.
-
-If you are upgrading from a 3.x version of {Singularity} we recommend also
-reviewing the `"What's New" section for 4.0
-<https://docs.sylabs.io/guides/4.0/user-guide/new.html>`__.
-
-********
-OCI-mode
-********
-
-- A new ``--layer-format tar`` flag for ``singularity push`` allows layers in an
-  OCI-SIF image to be pushed to ``library://`` and ``docker://`` registries with
-  layers in the standard OCI tar format. Images pushed with ``--layer-format``
-  tar can be pulled and run by other OCI runtimes. See :ref:`sec:layer-format`.
-
-- Persistent overlays embedded in OCI-SIF files. See :ref:`overlay-oci-sif`.
-
-  - A writable overlay can be added to an OCI-SIF file with the ``singularity
-    overlay create`` command. The overlay will be applied read-only, by default,
-    when executing the OCI-SIF. To write changes to the container into the
-    overlay, use the ``--writable`` flag. 
-  - A writable overlay is added to an OCI-SIF file as an ext3 format layer,
-    appended to the encapsulated OCI image. After the overlay has been modified,
-    use the ``singularity overlay sync`` command to synchronize the OCI digests with
-    the overlay content.
-  - A new ``singularity overlay seal`` command converts a writable overlay inside
-    an OCI-SIF image into a read-only squashfs layer. This seals changes made to
-    the image via the overlay, so that they are permanent.
-
-- OCI-SIF data containers provide a way to package reference data into an
-  OCI-SIF file that can be distributed alongside application containers. See
-  :ref:`sec:data-containers`.
-
-    - A new ``singularity data package`` command allows files and directories to
-      be packaged into an OCI-SIF data container.
-    - A new ``--data <data container>:<dest>`` flag for OCI-Mode allows the
-      contents of a data container to be made available at ``<dest>`` inside an
-      application container.
-
-
-*******
-Runtime
-*******
-
-- The new ``--netns-path`` flag takes a path to a network namespace to join when
-  starting a container. The root user may join any network namespace. An
-  unprivileged user can only join a network namespace specified in the new
-  allowed ``netns paths directive`` in ``singularity.conf``, if they are also
-  listed in ``allow net users`` / ``allow net groups``. Not currently supported
-  with ``--fakeroot``, or in ``--oci`` mode. See :ref:`sec:netns-path`.
-- Instances can now be started via the new subcommand ``singularity instance
-  run``, which will cause the instance to execute its ``%runscript`` rather than
-  the ``%startscript``.
-