diff --git a/doc/whats-new.rst b/doc/whats-new.rst
index c37a3213793..2b0d2e151c5 100644
--- a/doc/whats-new.rst
+++ b/doc/whats-new.rst
@@ -14,10 +14,21 @@ What's New
 
     np.random.seed(123456)
 
-.. _whats-new.2023.08.1:
+.. _whats-new.2023.09.0:
 
-v2023.08.1 (unreleased)
------------------------
+v2023.09.0 (Sep 26, 2023)
+-------------------------
+
+This release continues work on the new :py:class:`xarray.Coordinates` object, allows to provide `preferred_chunks` when
+reading from netcdf files, enables :py:func:`xarray.apply_ufunc` to handle missing core dimensions and fixes several bugs.
+
+Thanks to the 24 contributors to this release: Alexander Fischer, Amrest Chinkamol, Benoit Bovy, Darsh Ranjan, Deepak Cherian,
+Gianfranco Costamagna, Gregorio L. Trevisan, Illviljan, Joe Hamman, JR, Justus Magin, Kai Mühlbauer, Kian-Meng Ang, Kyle Sunden,
+Martin Raspaud, Mathias Hauser, Mattia Almansi, Maximilian Roos, András Gunyhó, Michael Niklas, Richard Kleijn, Riulinchen,
+Tom Nicholas and Wiktor Kraśnicki.
+
+We welcome the following new contributors to Xarray!: Alexander Fischer, Amrest Chinkamol, Darsh Ranjan, Gianfranco Costamagna, Gregorio L. Trevisan,
+Kian-Meng Ang, Riulinchen and Wiktor Kraśnicki.
 
 New Features
 ~~~~~~~~~~~~
@@ -28,11 +39,8 @@ New Features
   By `Benoît Bovy <https://github.com/benbovy>`_.
 - Provide `preferred_chunks` for data read from netcdf files (:issue:`1440`, :pull:`7948`).
   By `Martin Raspaud <https://github.com/mraspaud>`_.
-- Improved static typing of reduction methods (:pull:`6746`).
-  By `Richard Kleijn <https://github.com/rhkleijn>`_.
 - Added `on_missing_core_dims` to :py:meth:`apply_ufunc` to allow for copying or
-  dropping a :py:class:`Dataset`'s variables with missing core dimensions.
-  (:pull:`8138`)
+  dropping a :py:class:`Dataset`'s variables with missing core dimensions (:pull:`8138`).
   By `Maximilian Roos <https://github.com/max-sixty>`_.
 
 Breaking changes
@@ -61,6 +69,8 @@ Deprecations
 Bug fixes
 ~~~~~~~~~
 
+- Improved static typing of reduction methods (:pull:`6746`).
+  By `Richard Kleijn <https://github.com/rhkleijn>`_.
 - Fix bug where empty attrs would generate inconsistent tokens (:issue:`6970`, :pull:`8101`).
   By `Mattia Almansi <https://github.com/malmans2>`_.
 - Improved handling of multi-coordinate indexes when updating coordinates, including bug fixes
@@ -71,8 +81,8 @@ Bug fixes
   :pull:`8104`).
   By `Benoît Bovy <https://github.com/benbovy>`_.
 - Fix bug where :py:class:`DataArray` instances on the right-hand side
-  of :py:meth:`DataArray.__setitem__` lose dimension names.
-  (:issue:`7030`, :pull:`8067`) By `Darsh Ranjan <https://github.com/dranjan>`_.
+  of :py:meth:`DataArray.__setitem__` lose dimension names (:issue:`7030`, :pull:`8067`).
+  By `Darsh Ranjan <https://github.com/dranjan>`_.
 - Return ``float64`` in presence of ``NaT`` in :py:class:`~core.accessor_dt.DatetimeAccessor` and
   special case ``NaT`` handling in :py:meth:`~core.accessor_dt.DatetimeAccessor.isocalendar`
   (:issue:`7928`, :pull:`8084`).
@@ -83,14 +93,13 @@ Bug fixes
 - Calling plot with kwargs ``col``, ``row`` or ``hue`` no longer squeezes dimensions passed via these arguments
   (:issue:`7552`, :pull:`8174`).
   By `Wiktor Kraśnicki <https://github.com/wkrasnicki>`_.
-- Fixed a bug where casting from ``float`` to ``int64`` (undefined for ``NaN``) led to varying
-  issues (:issue:`7817`, :issue:`7942`, :issue:`7790`, :issue:`6191`, :issue:`7096`,
+- Fixed a bug where casting from ``float`` to ``int64`` (undefined for ``NaN``) led to varying issues (:issue:`7817`, :issue:`7942`, :issue:`7790`, :issue:`6191`, :issue:`7096`,
   :issue:`1064`, :pull:`7827`).
   By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_.
 - Fixed a bug where inaccurate ``coordinates`` silently failed to decode variable (:issue:`1809`, :pull:`8195`).
   By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_
 - ``.rolling_exp`` functions no longer mistakenly lose non-dimensioned coords
-  (:issue:`6528`, :pull:`8114`)
+  (:issue:`6528`, :pull:`8114`).
   By `Maximilian Roos <https://github.com/max-sixty>`_.
 - In the event that user-provided datetime64/timedelta64 units and integer dtype encoding parameters conflict with each other, override the units to preserve an integer dtype for most faithful serialization to disk (:issue:`1064`, :pull:`8201`).
   By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_.
@@ -101,6 +110,8 @@ Bug fixes
 Documentation
 ~~~~~~~~~~~~~
 
+- Make documentation of :py:meth:`DataArray.where` clearer (:issue:`7767`, :pull:`7955`).
+  By `Riulinchen <https://github.com/Riulinchen>`_.
 
 Internal Changes
 ~~~~~~~~~~~~~~~~
@@ -116,7 +127,6 @@ Internal Changes
 - Test range of fill_value's in test_interpolate_pd_compat (:issue:`8146`, :pull:`8189`).
   By `Kai Mühlbauer <https://github.com/kmuehlbauer>`_.
 
-
 .. _whats-new.2023.08.0:
 
 v2023.08.0 (Aug 18, 2023)