This is the code complete release candidate. The changes in this release are mostly related to the service example. Result codes are more consistent and in some cases additional debugging information is returned. Custom perfmon performance counters can be enabled in the app.config file. Server statistic such as up time and requests processed can optional be remotely accessed.
The Washington State Tax Rate Library version 0.6 has been released. Address and rate files are now automatically downloaded from DOR's web site.