Version 5.0.0 was released on May 20, 2019! This Final release marks the first in the brand new 5.x SasView series. The 5.x series has a completely redesigned interface along with an important new feature: the beta approximation for concentrated systems. The 4.x series will continue to be supported for a short time and at least one more minor release, 4.3.0, is expected as we complete the transition. However all new GUI features are expected to be developed for the 5.x series. Try it now and tell us how you like it and let us know of any issues!
For more details, please see the Release Notes which are now available from the program Help.