Complex sentence: The specification for Power ISA v.2.06 released in February 2009, is based on Power ISA v.2.05 and includes extensions for the POWER7 processor and e500-mc core.
Split into simpler sentences: The specification for Power ISA v.2.06 was released in February 2009. It is based on Power ISA v.2.05 and includes extensions for the POWER7 processor and e500-mc core.