Add information concerning release v4.2

Author: jderouillat

doc/Sphinx/releases.rst

@@ -10,18 +10,8 @@ Upcoming changes
 ^^^^^^^^^^^^^^^^
 
 * Interface with the PICSAR library (currently experimental)
-* Cylindrical geometry with azimuthal Fourier decomposition (beta version)
 * Particle merging (beta version)
 
-* Different convention for circular polarization amplitude
-* Bugfix: Various crashes with vectorization
-* Bugfix: `LaserGaussian2D` when focused far from boundary
-* Bugfix: laser :py:data:`a0` normalization to :py:data:`omega`
-* Bugfix: Compatibility between various ionization and QED models
-* Bugfix: Frozen particles are now properly ionized
-* Bugfix: position initialization over another species with moving window
-* Bugfix: tracked particles output was missing the mass factor for momenta
-
 
 ----
 
@@ -35,6 +25,29 @@ The latest version tarball can be donwloaded here:
 **Download**: `Smilei latest <_downloads/Smilei.tar.gz>`_
 
 
+----
+
+Release 4.2
+^^^^^^^^^^^^^^^^^^^^^
+
+**Download**: `Smilei v4.2 <_downloads/smilei-v4.2.tar.gz>`_
+
+
+* Different convention for circular polarization amplitude
+* Binomial filter in Cartesian 3D bug fix in parallel implementation
+* 1D and 2D laser envelope model
+* Cylindrical geometry with azimuthal Fourier decomposition (beta version)
+* Compatibility between various ionization and QED models
+* Bugfixes:
+   * Various crashes linked to vectorization
+   * `LaserGaussian2D` when focused far from boundary
+   * Laser :py:data:`a0` normalization to :py:data:`omega`
+   * Frozen particles are now properly ionized
+   * Position initialization over another species with moving window
+   * Tracked particles output was missing the mass factor for momenta
+   * Breit-Wheeler pair production with fine grain sorted particles
+
+
 ----
 
 Release 4.1