• quite a few patches from Eric Wong related to thread-safety, non-blocking I/O and general cleanup
  • wrap mysql_real_connect with rb_thread_blocking_region
  • release GVL for possibly blocking mysql_* library calls
  • [cleanup] quiet down warnings
  • [cleanup] make all C symbols static
  • add Mysql2::Client#close method
  • correctly free the wrapped result in case of EOF
  • Fix memory leak from the result wrapper struct itself
  • make Mysql2::Client destructor safely non-blocking
• bug fixes for ActiveRecord adapter
  • added casting for default values since they all come back from Mysql as strings (!?!)
  • missing constant was added
  • fixed a typo in the show_variable method
• switched over sscanf for date/time parsing in C
• made some specs a little finer-grained
• initial Sequel adapter added
• updated query benchmarks to reflect the difference between casting in C and in Ruby