Added release notes for python-pillow#7654

Author: radarhere

docs/releasenotes/10.2.0.rst

@@ -102,6 +102,12 @@ Support arbitrary masks for uncompressed RGB DDS images
 All masks are now supported when reading DDS images with uncompressed RGB data,
 allowing for bit counts other than 24 and 32.
 
+Saving TIFF tag RowsPerStrip
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+When saving TIFF images, the TIFF tag RowsPerStrip can now be one of the tags set by
+the user, rather than always being calculated by Pillow.
+
 Optimized ImageStat.Stat count and extrema
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^