<commit_before>
Chaco CHANGELOG
===============


What's new in Chaco 4.5.0
-------------------------

Change summary since 4.4.1

New features

 * Added perceptual colormaps by <NAME>, <NAME> and <NAME>.

 * Added asynchronous_updates.py demo that shows a pattern for generating
   expensive plots while keeping the interface responsive (PR#170).

Fixes

 * Restored fast renderers for scatterplots that were unintentionally removed in
   PR#101 (PR#175).
 * Make the `alpha` attribute of scatter plots work as intended (PR#164).
 * Resume running test for empty container that has been skipped (PR#190).
 * Improved handling of missing or empty data in scatterplot (PR#210)
 * Avoid a numpy crash when using a data source of a unicode array (PR#213).
 * PanTool with `restrict_to_data` selected works with empty data sources
   (PR#215).
 * Fix white gap between image border and image (PR#219).

Release 4.4.1
-------------
This release contains a lot of enhancements and bug fixes mostly to the OOP API of Chaco but also its shell mode.


Change summary since 4.3.0
<commit_msg>Update CHANGES.txt<commit_after>
Chaco CHANGELOG
===============


What's new in Chaco 4.5.0
-------------------------

Change summary since 4.4.1

New features

 * Added perceptual colormaps by <NAME>, <NAME> and <NAME>.

 * Added asynchronous_updates.py demo that shows a pattern for generating
   expensive plots while keeping the interface responsive (PR#170).

Fixes

 * Restored fast renderers for scatterplots that were unintentionally removed in
   PR#101 (PR#175).
 * Make the `alpha` attribute of scatter plots work as intended (PR#164).
 * Resume running test for empty container that has been skipped (PR#190).
 * Improved handling of missing or empty data in scatterplot (PR#210)
 * Avoid a numpy crash when using a data source of a unicode array (PR#213).
 * PanTool with `restrict_to_data` selected works with empty data sources
   (PR#215).
 * Fix white gap between image border and image (PR#219).
 * Fix behaviour of mappers when stretch_data trait is False (PR#227)

Release 4.4.1
-------------
This release contains a lot of enhancements and bug fixes mostly to the OOP API of Chaco but also its shell mode.


Change summary since 4.3.0

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