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+##########
+Change log
+##########
+
+All notable changes to the python-openflow project is documented in this file.
+
+
+[Unreleased]
+************
+Added
+=====
+Changed
+=======
+
+
+[2017.1.b1] - "bethania" beta1 - 2017-24-03
+*******************************************
+Added
+=====
+    - OF v0x04 - 1.3.5 - version support
+
+Changed
+=======
+  - v0x04
+      - Finished implementation
+      - Test improvements
+  - v0x01 - Numerous Fixes
+  - New and updated tests for 0x04
+  - OF v0x04 1.3.0 - Compliance fixes
+  - Test improvements
+  - Refactoring:
+    - Use of Python 3.6 class attribute order preservation
+    - New inheritance model, MetaStruct refactored
+  - Support for Python 3.6 and later
+  - Improved docs organization
+  - Added support to AggregationStats and FlowStats
+  - StatsRequest/Reply packing/unpacking
+  - Updated docs: install instructions
+  - Test improvements: fixes, refactoring.
+  - Refactoring: basic_types.py
+  - [v0x04] Adding multipart reply and request messages with tests
+  - Numerous 0x04 implementations
+  - Improved continuous integration
+  - v0x01 fixes
+  - Adding constant files to manage constants in NApps
+  - Moving foundation module to pyof root folder (same with tests)
+
+[2016.1.a2] - alpha2 - 2016-11-09
+*********************************
+Changed
+=======
+  - Enum fixes
+  - More detailed unpack error messages
+  - Refactoring: import classes instead of modules
+  - lint fixes and docs generation
+  - Pip support
+
+[2016.1.a1] - alpha1 - 2016-06-08
+*********************************
+Changed
+=======
+  - many doc and docstrings fixes and enhancements
+      - from markdown to restructuredtext
+      - doctests
+  - pypi
+  - code optimizations.
+  - many unittests added
+  - Pack, Unpack and GenericType refactor.
+  - added GenericBitMask class
+  - BitMask classes can behave like enums
+  - python3 compliance on MetaStruct inheritance declaration
+  - revision of bitmasks and enums
+  - fixes on enums and GenericStruct inheritance
+  - object equality comparison on Generic Types and Structs
+  - Refactor to accept Python basic types as messages attributes.
+  - Messages type conversion during the pack operation.
+  - Better documentation
+  - Several fixes, including GenericMessage pack method.
+  - Added ConstantTypeList and ListOf* classes
+  - Added BinaryData into packet in and out
+  - Added new basic types and new exceptions
+  - Changed message types from GenericStruct to GenericMessage
+  - Added FeaturesReply Class
+  - Validation on pack
+  - Fix Package setup
+  - Docs: added support for Sphinx
+  - new workflow for the project
+      - Added explanation and figures to illustrate the workflow.
+      - Added a special workflow to hotfix and security fix.
+  - better readme on contribute and hacking
+      - added a test badge to readme
+      - update LICENSE
+  - Numerous test improvements
+      - Enable test on setup with setuptools
+      - Added some files with OpenFlow binary data for testing
+  - added Port Status messages class and enums definitions
+  - added vendor message file and class implementation
+  - Recode to transform the project into a Python Project
+  - multiple stats messages implementations
+  - added requirements file.
+  - improvements to project structure
+  - added Project Structure section on README
+  - pack / unpack refactoring for compliance with OF v0x01
+  - added unit tests
+  - docstrings documentation improvements
+  - Test restructure
+  - Added MIT License
+  - several compilation fixes.
+  - package and imports structure refactoring.
+  - Added classes for flow statistics.
+  - Classes to improve Exception Handling
+  - refactoring to use python3 Enum class
+  - Added thread implementation for socket handle.
+  - Use of metaclasses for messages and structs implementation.
+  - Fixes on HELLO Packet implementation
+  - initial skeleton to implement introspection
+  - MessageGeneric class
+  - better readme and hacking instructions
+  - better organization on problem description
+  - added messages, todo and instructions
+
+[2013.0.0] - Initial - 2013-06-08
+*********************************
+Added
+=====
+  - initial implementation
+  - support for OF v0x01 messages building and parsing