Add a note about the sizer item flags validation to the Migration Guide

i7123 · Aug 7, 2020 · 10dbdaa · 10dbdaa
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commit 10dbdaa
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diff --git a/docs/MigrationGuide.rst b/docs/MigrationGuide.rst
@@ -711,6 +711,17 @@ override `InitLocale` if needed.
 
 
 
+Sizer item flags validation
+---------------------------
+
+Starting with wxPython 4.1, wxWidgets is now validating the flags passed
+when adding items to a sizer, to ensure that they are the correct flags for
+the type of the sizer. If the given flags do not make sense, for example using
+horizontal alignment flags in a horizontal box sizer, then a wxAssertionError
+error is raised.
+
+
+
 .. toctree::
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