Google have released version 6 of the V8 benchmark suite. The main changes are in the RegExp and Splay components of the benchmark suite. For reference, "we describe each of the existing benchmarks "RegExp, Splay, Richards, DeltaBlue, Crypto, RayTrace, and EarleyBoyer" in the suite below, along with any changes made in version 6.
"RegExp: Regular expression benchmark generated by extracting regular expression operations from 50 of the most popular web pages. The regular expressions are exercised a number of times to reflect their popularity on those top 50 web pages. Changed in version 6: each regular expression is now exercised on a number of different input strings instead of just one"," explained Google.
More Info: V8 v6