3.38.1 - 3 December 2020

Web:

 * Fix crash when generating speech for childless math element

General:

 * Fix bug causing the new radio button group to not be presented
   when the group was first entered

New and updated translations (THANKS EVERYONE!!!):

   pt            Portuguese              Juliano de Souza Camargo
   pt_BR         Brazilian Portuguese    Henrique Machado Campos

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