why increased the file size of the Aspose.Slides.dll so much (about 10MB; former 3,5MB) ?
Yes, you are right that the size of API has been increased. Actually, we have introduced the support for creating charts in Aspose.Slides for .NET that in fact use Aspose.Cells internally. Earlier, for chart support in Aspose.Slides one need to have Aspose.Cells as well and they were licensing related issues in this as a customer with Aspose.Slides license was unable to use Aspose.Cells. So, Aspose.Cells has been implemented inside Aspose.Slides assembly for the chart support now and this has increased the dll size. Moreover, the support for Smart Art rendering has also been added in new versions of Aspos.Slides. Hope it justifies the requested query from you.
Thanks and Regards,