Version History:
SWFUpload v2.1.0 Official Release
SWFUpload v2.0.1 Official Release
SWFUpload v2.0-Pre
SWFUpload v1 Revision 7.0b3
SWFUpload v1 Revision 6.2
SWFUpload v1 Revision 5.2
SWFUpload v1.0.2 Official Release
SWFUpload v0.8.2 Revision 4
SWFUpload v0.8.2 Revision 3 (first Revision release)
SWFUpload v0.8.2 Official Release

What's going on?
SWFUpload was originally developed by Mammon Media (now Vinterwebb) who stopped development at v1.0.2.

A fork was made at v0.8.2. The forked code was contributed back to SWFUpload which resulted in v1.0.2. The fork releases were post-fixed with "Revision" version numbers (Revision 3, Revision 4, etc).

The fork developers took over SWFUpload development (with permission from the contributors at Vinterwebb) and released version v2.0.

SWFUpload is still under active development and support.