== 0.9.0 / 2012-03-20

* Major performance enhancements
  * Much, much faster: rewritten runtime that now uses a push-based dataflow
  * Operator state is cached; only deltas are updated across ticks in many cases
  * Joins that use collection keys can use collection storage for improved
    performance
* Improved compatibility: Bud now works with MRI 1.9 (as well as 1.8.7)
  * Switched from ParseTree to ruby_parser
  * Rewritten Bloom module system
* Tuples are now represented as Ruby Structs, rather than Arrays
  * This avoids the need to define column accessor methods by hand
* Tests now use MiniTest rather than Test::Unit
* Observe the following incompatibilities:
  * Support for "semi-structured" collections have been removed. That is,
    previously you could store extra field values into a tuple; those values
    would be collapsed into a single array that was tacked onto the end of the
    tuple.
  * Support for Bloom-based signal handling has been removed
  * Support for the "with" syntax has been removed
  * The Bloom-based "deployment" framework has been removed
  * Support for Tokyo Cabinet-based collections has been removed


== 0.9.0 / 2012-03-21

* Major performance enhancements
  * Much, much faster: rewritten runtime that now uses a push-based dataflow
  * Operator state is cached; only deltas are updated across ticks in many cases
  * Joins that use collection keys can use collection storage for improved
    performance
* Improved compatibility: Bud now works with MRI 1.9 (as well as 1.8.7)
  * Switched from ParseTree to ruby_parser
  * Rewritten Bloom module system
* Tuples are now represented as Ruby Structs, rather than Arrays
  * This avoids the need to define column accessor methods by hand
* Tests now use MiniTest rather than Test::Unit
* Observe the following incompatibilities:
  * Support for "semi-structured" collections have been removed. That is,
    previously you could store extra field values into a tuple; those values
    would be collapsed into a single array that was tacked onto the end of the
    tuple.
  * Support for Bloom-based signal handling has been removed
  * Support for the "with" syntax has been removed
  * The Bloom-based "deployment" framework has been removed
  * Support for Tokyo Cabinet-based collections has been removed


Tweak date on release notes.
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