2.2.0
=====

- Added the set_exception_info() and exception_info() methods to Future
  to enable extraction of tracebacks on Python 2.x
- Added support for Future.set_exception_info() to ThreadPoolExecutor


2.1.6
=====

- Fixed a problem with files missing from the source distribution


2.1.5
=====

- Fixed Jython compatibility
- Added metadata for wheel support


2.1.4
=====

- Ported the library again from Python 3.2.5 to get the latest bug fixes 


2.1.3
=====

- Fixed race condition in wait(return_when=ALL_COMPLETED)
  (http://bugs.python.org/issue14406) -- thanks Ralf Schmitt
- Added missing setUp() methods to several test classes


2.1.2
=====

- Fixed installation problem on Python 3.1


2.1.1
=====

- Fixed missing 'concurrent' package declaration in setup.py


2.1
===

- Moved the code from the 'futures' package to 'concurrent.futures' to provide
  a drop in backport that matches the code in Python 3.2 standard library
- Deprecated the old 'futures' package


2.0
===

- Changed implementation to match PEP 3148


1.0
===

Initial release.