Docu update

ChangeLog

+2023-08-15  Uwe Schulzweida
+
+	* Version 2.2.4 released
+
 2023-08-10  Uwe Schulzweida
 
 	* Replace cdf_get_att_int64() by cdf_get_att_longlong() to read NC_INT64 attributes with nc_get_att_longlong()

NEWS

@@ -5,13 +5,16 @@ Version 2.3.0 (23 October 2023):
 
    New features:
      * Add support for NetCDF attribute type NC_INT64
+     * Add interface function streamInqNumSteps() to inquire number of time steps
      * gribapi decode: add support for single precision float interface (available since ecCodes-2.30.0)
      * grib2: add read only support for alternativeRowScanning
      * grib2: add support for earth radius specified by data producer
    Fixed bugs:
+     * HIRLAM_EXTENSIONS: set default CDI_KEY_SCANNINGMODE to 64 [Bug #11367]
      * gribapiDefGridLCC: store DxInMetres/DyInMetres as double
      * NetCDF4: use chunkSize only if it is less than gridsize
      * cdfDefineAttributes: check filetype for unsigned int attributes
+     * time information missing if the stream contains only constant time fields
 
 Version 2.2.0 (23 February 2023):