Nengo

======================

**Bug fixes**

- Cache now fails gracefully if the ``legacy.txt`` file cannot be read.
This can occur if a later version of Nengo is used.

========================

**API changes**

- The ``spa.State`` object replaces the old ``spa.Memory`` and ``spa.Buffer``.
These old modules are deprecated and will be removed in 2.2.
(`796 <https://github.com/nengo/nengo/pull/796>`_)

to work with more recent versions of Jupyter
(formerly known as the IPython notebook).

**Behavioural changes**

- The IPython notebook progress bar has to be activated with
``%load_ext nengo.ipynb``.
(`693 <https://github.com/nengo/nengo/pull/693>`_)

**Improvements**

- Added ``[progress]`` section to ``nengorc`` which allows setting
``progress_bar`` and ``updater``.
(`693 <https://github.com/nengo/nengo/pull/693>`_)

**Bug fixes**

- Fix compatibility issues with newer versions of IPython,
and Jupyter. (`693 <https://github.com/nengo/nengo/pull/693>`_)

========================

**Behavioural changes**

- Node functions receive ``t`` as a float (instead of a NumPy scalar)
and ``x`` as a readonly NumPy array (instead of a writeable array).
(`626 <https://github.com/nengo/nengo/issues/626>`_,
`628 <https://github.com/nengo/nengo/pull/628>`_)

**Improvements**

- ``rasterplot`` works with 0 neurons, and generates much smaller PDFs.
(`601 <https://github.com/nengo/nengo/pull/601>`_)

**Bug fixes**

- Fix compatibility with NumPy 1.6.
(`627 <https://github.com/nengo/nengo/pull/627>`_)

Supports Python 2.6+ and 3.3+.
Thanks to all of the contributors for making this possible!


***************
Release History
***************

.. Changelog entries should follow this format:

version (release date)
======================

**section**

- One-line description of change (link to Github issue/PR)

.. Changes should be organized in one of several sections:

- Added
- Changed
- Deprecated
- Removed
- Fixed

========================