+ * enhancement: stepping is now once again supported on the SPARC. (It is
+ also now more likely to work on CheneyGC builds on the PPC.)
+ * enhancement: Stepping support on MIPS.
+ * enhancement: sb-sprof can now also track and report accurate call
+ counts.
+ * incompatible change: PURIFY no longer copies the data from the
+ dynamic space into the static and read-only spaces on platforms
+ that use the generational garbage collector