Release Notes

This is the list of changes to pandas between each release. For full details,see the commit logs at http://github.com/pandas-dev/pandas. For install andupgrade instructions, see Installation.

Version 0.25

• What’s new in 0.25.3 (October 31, 2019)
  • Bug fixes
  • Contributors
• What’s new in 0.25.2 (October 15, 2019)
  • Bug fixes
  • Contributors
• What’s new in 0.25.1 (August 21, 2019)
  • I/O and LZMA
  • Bug fixes
  • Contributors
• What’s new in 0.25.0 (July 18, 2019)
  • Enhancements
  • Backwards incompatible API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.24

• Whats new in 0.24.2 (March 12, 2019)
  • Fixed regressions
  • Bug fixes
  • Contributors
• Whats new in 0.24.1 (February 3, 2019)
  • API changes
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 0.24.0 (January 25, 2019)
  • Enhancements
  • Backwards incompatible API changes
  • Extension type changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.23

• What’s new in 0.23.4 (August 3, 2018)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 0.23.3 (July 7, 2018)
  • Contributors
• What’s new in 0.23.2 (July 5, 2018)
  • Logical reductions over entire DataFrame
  • Fixed regressions
  • Build changes
  • Bug fixes
  • Contributors
• What’s new in 0.23.1 (June 12, 2018)
  • Fixed regressions
  • Performance improvements
  • Bug fixes
  • Contributors
• What’s new in 0.23.0 (May 15, 2018)
  • New features
  • Backwards incompatible API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Documentation changes
  • Bug fixes
  • Contributors

Version 0.22

• v0.22.0 (December 29, 2017)
  • Backwards incompatible API changes
  • Compatibility
  • Contributors

Version 0.21

• v0.21.1 (December 12, 2017)
  • Restore Matplotlib datetime converter registration
  • New features
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.21.0 (October 27, 2017)
  • New features
  • Backwards incompatible API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Documentation changes
  • Bug fixes
  • Contributors

Version 0.20

• v0.20.3 (July 7, 2017)
  • Bug fixes
  • Contributors
• v0.20.2 (June 4, 2017)
  • Enhancements
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.20.1 (May 5, 2017)
  • New features
  • Backwards incompatible API changes
  • Reorganization of the library: privacy changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.19

• v0.19.2 (December 24, 2016)
  • Enhancements
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.19.1 (November 3, 2016)
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.19.0 (October 2, 2016)
  • New features
  • API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.18

• v0.18.1 (May 3, 2016)
  • New features
  • Sparse changes
  • API changes
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.18.0 (March 13, 2016)
  • New features
  • Backwards incompatible API changes
  • Performance improvements
  • Bug Fixes
  • Contributors

Version 0.17

• v0.17.1 (November 21, 2015)
  • New features
  • Enhancements
  • API changes
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.17.0 (October 9, 2015)
  • New features
  • Backwards incompatible API changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.16

• v0.16.2 (June 12, 2015)
  • New features
  • API changes
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.16.1 (May 11, 2015)
  • Enhancements
  • API changes
  • Index representation
  • Performance improvements
  • Bug fixes
  • Contributors
• v0.16.0 (March 22, 2015)
  • New features
  • Backwards incompatible API changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.15

• v0.15.2 (December 12, 2014)
  • API changes
  • Enhancements
  • Performance
  • Bug fixes
  • Contributors
• v0.15.1 (November 9, 2014)
  • API changes
  • Enhancements
  • Bug fixes
  • Contributors
• v0.15.0 (October 18, 2014)
  • New features
  • Backwards incompatible API changes
  • Enhancements
  • Performance
  • Bug fixes
  • Contributors

Version 0.14

• v0.14.1 (July 11, 2014)
  • API changes
  • Enhancements
  • Performance
  • Experimental
  • Bug fixes
  • Contributors
• v0.14.0 (May 31 , 2014)
  • API changes
  • Display changes
  • Text parsing API changes
  • Groupby API changes
  • SQL
  • MultiIndexing using slicers
  • Plotting
  • Prior version deprecations/changes
  • Deprecations
  • Known issues
  • Enhancements
  • Performance
  • Experimental
  • Bug Fixes
  • Contributors

Version 0.13

• v0.13.1 (February 3, 2014)
  • Output formatting enhancements
  • API changes
  • Prior version deprecations/changes
  • Deprecations
  • Enhancements
  • Performance
  • Experimental
  • Bug fixes
  • Contributors
• v0.13.0 (January 3, 2014)
  • API changes
  • Prior version deprecations/changes
  • Deprecations
  • Indexing API changes
  • Float64Index API change
  • HDFStore API changes
  • DataFrame repr changes
  • Enhancements
  • Experimental
  • Internal refactoring
  • Bug fixes
  • Contributors

Version 0.12

• v0.12.0 (July 24, 2013)
  • API changes
  • I/O enhancements
  • Other enhancements
  • Experimental features
  • Bug fixes
  • Contributors

Version 0.11

• v0.11.0 (April 22, 2013)
  • Selection choices
  • Selection deprecations
  • Dtypes
  • Dtype conversion
  • Dtype gotchas
  • Datetimes conversion
  • API changes
  • Enhancements
  • Contributors

Version 0.10

• v0.10.1 (January 22, 2013)
  • API changes
  • New features
  • HDFStore
  • Contributors
• v0.10.0 (December 17, 2012)
  • File parsing new features
  • API changes
  • New features
  • Wide DataFrame printing
  • Updated PyTables support
  • N dimensional Panels (experimental)
  • Contributors

Version 0.9

• v0.9.1 (November 14, 2012)
  • New features
  • API changes
  • Contributors
• v0.9.0 (October 7, 2012)
  • New features
  • API changes
  • Contributors

Version 0.8

• v0.8.1 (July 22, 2012)
  • New features
  • Performance improvements
  • Contributors
• v0.8.0 (June 29, 2012)
  • Support for non-unique indexes
  • NumPy datetime64 dtype and 1.6 dependency
  • Time series changes and improvements
  • Other new features
  • New plotting methods
  • Other API changes
  • Potential porting issues for pandas <= 0.7.3 users
  • Contributors

Version 0.7

• v.0.7.3 (April 12, 2012)
  • New features
  • NA Boolean comparison API change
  • Other API changes
  • Contributors
• v.0.7.2 (March 16, 2012)
  • New features
  • Performance improvements
  • Contributors
• v.0.7.1 (February 29, 2012)
  • New features
  • Performance improvements
  • Contributors
• v.0.7.0 (February 9, 2012)
  • New features
  • API changes to integer indexing
  • API tweaks regarding label-based slicing
  • Changes to Series [] operator
  • Other API changes
  • Performance improvements
  • Contributors

Version 0.6

• v.0.6.1 (December 13, 2011)
  • New features
  • Performance improvements
  • Contributors
• v.0.6.0 (November 25, 2011)
  • New features
  • Performance enhancements
  • Contributors

Version 0.5

• v.0.5.0 (October 24, 2011)
  • New features
  • Performance enhancements
  • Contributors

Version 0.4

• v.0.4.1 through v0.4.3 (September 25 - October 9, 2011)
  • New features
  • Performance enhancements
  • Contributors