1API Changes for 3.4.2 2===================== 3 4Behaviour changes 5----------------- 6 7Rename first argument to ``subplot_mosaic`` 8~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 9 10Both `.FigureBase.subplot_mosaic`, and `.pyplot.subplot_mosaic` have had the 11first position argument renamed from *layout* to *mosaic*. This is because we 12are considering to consolidate *constrained_layout* and *tight_layout* keyword 13arguments in the Figure creation functions of `.pyplot` into a single *layout* 14keyword argument which would collide. 15 16As this API is provisional, we are changing this with no deprecation period. 17