This document describes the Python 2.2 development and release
schedule. The schedule primarily concerns itself with PEP-sized
items. Small bug fixes and changes will occur up until the first
The schedule below represents the actual release dates of Python
2.2. Note that any subsequent maintenance releases of Python 2.2
should be covered by separate PEPs.
Tentative future release dates. Note that we've slipped this
compared to the schedule posted around the release of 2.2a1.
21-Dec-2001: 2.2 [Released] (final release)
14-Dec-2001: 2.2c1 [Released]
14-Nov-2001: 2.2b2 [Released]
19-Oct-2001: 2.2b1 [Released]
28-Sep-2001: 2.2a4 [Released]
7-Sep-2001: 2.2a3 [Released]
22-Aug-2001: 2.2a2 [Released]
18-Jul-2001: 2.2a1 [Released]
Barry Warsaw was the Python 2.2 release manager.
We experimented with a new mechanism for releases: a week before
every alpha, beta or other release, we forked off a branch which
became the release. Changes to the branch are limited to the
release manager and his designated 'bots. This experiment was
deemed a success and should be observed for future releases. See
PEP 101 for the actual release mechanics.
New features for Python 2.2
The following new features are introduced in Python 2.2. For a
more detailed account, see Misc/NEWS in the Python
distribution, or Andrew Kuchling's "What's New in Python 2.2"
- iterators (PEP 234)
- generators (PEP 255)
- unifying long ints and plain ints (PEP 237)
- division (PEP 238)
- unification of types and classes (PEP 252, PEP 253)
 PEP 101, Doing Python Releases 101
 Misc/NEWS file from CVS
 Andrew Kuchling, What's New in Python 2.2
This document has been placed in the public domain.