0.2.3

• connection flags can now be passed to the constructor via the :flags key
• switch AR adapter connection over to use FOUND_ROWS option
• patch to ensure we use DateTime objects in place of Time for timestamps that are out of the supported range on 32bit platforms < 1.9.2

0.2.2

• Change how AR adapter would send initial commands upon connecting
  • we can make multiple session variable assignments in a single query
• fix signal handling when waiting on queries
• retry connect if interrupted by signals

0.2.1

• bring mysql2 ActiveRecord adapter back into gem

0.2.0

• switch back to letting libmysql manage all allocation/thread-state/freeing for the connection
• cache various numeric type conversions in hot-spots of the code for a little speed boost
• ActiveRecord adapter moved into Rails 3 core
  • Don't worry 2.3.x users! We'll either release the adapter as a separate gem, or try to get it into 2.3.9
• Fix for the "closed MySQL connection" error (GH #31)
• Fix for the "can't modify frozen object" error in 1.9.2 (GH #37)
• Introduce cascading query and result options (more info in README)
• Sequel adapter pulled into core (will be in the next release - 3.15.0 at the time of writing)
• add a safety check when attempting to send a query before a result has been fetched

0.1.9

• Support async ActiveRecord access with fibers and EventMachine (@mperham)
• string encoding support for 1.9, respecting Encoding.default_internal
• added support for rake-compiler (@tenderlove)
• bugfixes for ActiveRecord driver
  • one minor bugfix for TimeZone support
  • fix the select_rows method to return what it should according to the docs (@r-stu31)
• Mysql2::Client#fields method added - returns the array of field names from a resultset, as strings
• Sequel adapter
  • bugfix regarding sybolized field names (Eric Wong)
  • fix query logging in Sequel adapter
• Lots of nice code cleanup (@tenderlove)
  • Mysql2::Error definition moved to pure-Ruby
  • Mysql2::client#initialize definition moved to pure-Ruby
  • Mysql2::Result partially moved to pure-Ruby

0.1.8

• fixes for AR adapter for timezone juggling
• fixes to be able to run benchmarks and specs under 1.9.2

0.1.7

• fix a bug when using the disconnect! method on a closed connection in the AR driver

0.1.6

• more fixes to the AR adapter related to casting
• add missing index creation override method to AR adapter
• added sql_state and error_number methods to the Mysql2::Error exception class

0.1.5

• 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

0.1.4

• optimization: implemented a local cache for rows that are lazily created in ruby during iteration. The MySQL C result is freed as soon as all the results have been cached
• optimization: implemented a local cache for field names so every row reuses the same objects as field names/keys
• refactor the Mysql2 connection adapter for ActiveRecord to not extend the Mysql adapter - now being a free-standing connection adapter