Important changes related to the usability of the debugger and inspector, debugging of compiled C code, handling of floating point exceptions and creation and manipulation of NaNs and infinities, among other things. Please reade the Changelog.
Support for Solaris/Intel has been added. The windows ports are right now broken. Please stay with 9.4.0 if support for those platforms is needed, until we fix the problems. Remaining ports, such as OSX, Linux, *BSD are working fine.