Right, Sebastian. OpenLaszlo 5.0 will not support the SWF8 runtime any more.
Flash Player 8 was first released in September 2005, and I think in June 2006 Adobe already released Flash Player 9. The problem with support the old SWF8/AVM1 runtime is that it makes very difficult to build modern component sets with complete CSS styling if you still need to support the Adobe Virtual Machine 1 with the SWF8 file format. The new component set Laszlo works/worked on renders components using drawviews with CSS styling. A lot of the CSS options you have now with CSS 2.1 and newer versions cannot be supported with SWF8. If you need to compile to both SWF10 and SWF8, better use the 4.9 release - although you'll miss all the features and bug fixes which have been added to trunk since the last 4.9 release. I'm not planning to integrate the SWF11 runtime into 4.9, since I don't use 4.9. If you or other community members want SWF11 support in 4.9, you'd have to create a branch, port the changes for the flex4.6 branch back to 4.9. I'm not sure Laszlo has QA resources to do that, maybe you'd have to do the QA as well. Some people seem to prefer using 4.9 instead of trunk, since they think it's more stable. I'd guess that trunk is more stable by now, but Amy might be able to tell you more. Raju
