# What’s new in IPython

This section documents the changes that have been made in various versions of IPython. Users should consult these pages to learn about new features, bug fixes and backwards incompatibilities. Developers should summarize the development work they do here in a user friendly format.

- 5.x Series
- Issues closed in the 5.x development cycle
- 4.x Series
- Issues closed in the 4.x development cycle
- 3.x Series
- Issues closed in the 3.x development cycle
- Migrating Widgets to IPython 3
- 2.x Series
- Issues closed in the 2.x development cycle
- 1.0 Series
- Issues closed in the 1.0 development cycle
- 0.13 Series
- Issues closed in the 0.13 development cycle
- 0.12 Series
- Issues closed in the 0.12 development cycle
- 0.11 Series
- Issues closed in the 0.11 development cycle
- 0.10 series
- 0.9 series
- 0.8 series