3.1.1
=====
- Backported sanity checks for the ``max_workers`` constructor argument for ThreadPoolExecutor and
ProcessPoolExecutor
- Set the default value of ``max_workers`` in ThreadPoolExecutor to ``None``, as in upstream code
(computes the thread pool size based on the number of CPUs)
- Added support for old-style exception objects
- Switched to the PSF license
3.1.0
=====
(Failed release)
3.0.5
=====
- Fixed OverflowError with ProcessPoolExecutor on Windows (regression introduced in 3.0.4)
3.0.4
=====
- Fixed inability to forcibly terminate the process if there are pending workers
3.0.3
=====
- Fixed AttributeErrors on exit on Python 2.x
3.0.2
=====
- Made multiprocessing optional again on implementations other than just Jython
3.0.1
=====
- Made Executor.map() non-greedy
3.0.0
=====
- Dropped Python 2.5 and 3.1 support
- Removed the deprecated "futures" top level package
- Applied patch for issue 11777 (Executor.map does not submit futures until
iter.next() is called)
- Applied patch for issue 15015 (accessing an non-existing attribute)
- Applied patch for issue 16284 (memory leak)
- Applied patch for issue 20367 (behavior of concurrent.futures.as_completed()
for duplicate arguments)
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.