Dear mchu,
There shouldn’t be any problem of reading/writing/manipulating the flash files created with latest version of Flash using Aspose.Flash
The reason being is that flash file format is not changed in latest versions, only new objects have been added, if Aspose.Flash does not understand any of them, it simply read/write them back and hence its working is not affected.
Many Thanks and Kind Regards,
Shakeel Faiz
Support Engineer
Aspose Tyumen Team