Release Notes: Ported to Opteron/Linux, IA-64/Linux, Alpha/OSF/1, and IRIX64/MIPS. The csprof and load module dumper utilities have been added. Support has been added for group scopes. There is better support for threads and forks. Performance tuning on assorted modules. Support for binaries produces by Sun's compilers. Updated to operate with newer versions of GCC and binutils. Basic support for Alpha relocatable shared libraries. Improved documentation. DSO support has been added to the LoadModule classes. Updated to handle abnormal debug information. Many bugfixes.