Release notes — pandas 3.0.0.dev0+2098.g9c5b9ee823 documentation (original) (raw)

This is the list of changes to pandas between each release. For full details, see the commit logs. For install and upgrade instructions, see Installation.

Version 3.0#

• What’s new in 3.0.0 (Month XX, 2024)
  • Enhancements
  • Notable bug fixes
  • Backwards incompatible API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 2.3#

• What’s new in 2.3.0 (Month XX, 2024)
  • Upcoming changes in pandas 3.0
  • Enhancements
  • Notable bug fixes
  • API changes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 2.2#

• What’s new in 2.2.3 (September 20, 2024)
  • Pandas 2.2.3 is now compatible with Python 3.13
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.2.2 (April 10, 2024)
  • Pandas 2.2.2 is now compatible with numpy 2.0
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.2.1 (February 22, 2024)
  • Enhancements
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.2.0 (January 19, 2024)
  • Upcoming changes in pandas 3.0
  • Enhancements
  • Notable bug fixes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 2.1#

• What’s new in 2.1.4 (December 8, 2023)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 2.1.3 (November 10, 2023)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 2.1.2 (October 26, 2023)
  • Deprecations
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.1.1 (September 20, 2023)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.1.0 (Aug 30, 2023)
  • Enhancements
  • Backwards incompatible API changes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 2.0#

• What’s new in 2.0.3 (June 28, 2023)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.0.2 (May 29, 2023)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.0.1 (April 24, 2023)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 2.0.0 (April 3, 2023)
  • Enhancements
  • Notable bug fixes
  • Backwards incompatible API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 1.5#

• What’s new in 1.5.3 (January 18, 2023)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.5.2 (November 21, 2022)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.5.1 (October 19, 2022)
  • Behavior of groupby with categorical groupers (GH 48645)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.5.0 (September 19, 2022)
  • Enhancements
  • Notable bug fixes
  • Backwards incompatible API changes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 1.4#

• What’s new in 1.4.4 (August 31, 2022)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.4.3 (June 23, 2022)
  • Behavior of concat with empty or all-NA DataFrame columns
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.4.2 (April 2, 2022)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.4.1 (February 12, 2022)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.4.0 (January 22, 2022)
  • Enhancements
  • Notable bug fixes
  • Backwards incompatible API changes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 1.3#

• What’s new in 1.3.5 (December 12, 2021)
  • Fixed regressions
  • Contributors
• What’s new in 1.3.4 (October 17, 2021)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.3.3 (September 12, 2021)
  • Fixed regressions
  • Performance improvements
  • Bug fixes
  • Contributors
• What’s new in 1.3.2 (August 15, 2021)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.3.1 (July 25, 2021)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.3.0 (July 2, 2021)
  • Enhancements
  • Notable bug fixes
  • Backwards incompatible API changes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 1.2#

• What’s new in 1.2.5 (June 22, 2021)
  • Fixed regressions
  • Contributors
• What’s new in 1.2.4 (April 12, 2021)
  • Fixed regressions
  • Contributors
• What’s new in 1.2.3 (March 02, 2021)
  • Fixed regressions
  • Contributors
• What’s new in 1.2.2 (February 09, 2021)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.2.1 (January 20, 2021)
  • Fixed regressions
  • Calling NumPy ufuncs on non-aligned DataFrames
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.2.0 (December 26, 2020)
  • Enhancements
  • Notable bug fixes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 1.1#

• What’s new in 1.1.5 (December 07, 2020)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.1.4 (October 30, 2020)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.1.3 (October 5, 2020)
  • Enhancements
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.1.2 (September 8, 2020)
  • Fixed regressions
  • Bug fixes
  • Other
  • Contributors
• What’s new in 1.1.1 (August 20, 2020)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.1.0 (July 28, 2020)
  • Enhancements
  • Notable bug fixes
  • Backwards incompatible API changes
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors

Version 1.0#

• What’s new in 1.0.5 (June 17, 2020)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.0.4 (May 28, 2020)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.0.3 (March 17, 2020)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s new in 1.0.2 (March 12, 2020)
  • Fixed regressions
  • Indexing with nullable Boolean arrays
  • Bug fixes
  • Contributors
• What’s new in 1.0.1 (February 5, 2020)
  • Fixed regressions
  • Deprecations
  • Bug fixes
  • Contributors
• What’s new in 1.0.0 (January 29, 2020)
  • New deprecation policy
  • Enhancements
  • Experimental new features
  • Other enhancements
  • Backwards incompatible API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

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)
  • IO 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#

• What’s new in 0.24.2 (March 12, 2019)
  • Fixed regressions
  • Bug fixes
  • Contributors
• What’s 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#

• Version 0.22.0 (December 29, 2017)
  • Backwards incompatible API changes
  • Compatibility
  • Contributors

Version 0.21#

• Version 0.21.1 (December 12, 2017)
  • Restore Matplotlib datetime converter registration
  • New features
  • Deprecations
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.21.0 (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#

• Version 0.20.3 (July 7, 2017)
  • Bug fixes
  • Contributors
• Version 0.20.2 (June 4, 2017)
  • Enhancements
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.20.1 (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#

• Version 0.19.2 (December 24, 2016)
  • Enhancements
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.19.1 (November 3, 2016)
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.19.0 (October 2, 2016)
  • New features
  • API changes
  • Deprecations
  • Removal of prior version deprecations/changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.18#

• Version 0.18.1 (May 3, 2016)
  • New features
  • Sparse changes
  • API changes
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.18.0 (March 13, 2016)
  • New features
  • Backwards incompatible API changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.17#

• Version 0.17.1 (November 21, 2015)
  • New features
  • Enhancements
  • API changes
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.17.0 (October 9, 2015)
  • New features
  • Backwards incompatible API changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.16#

• Version 0.16.2 (June 12, 2015)
  • New features
  • API changes
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.16.1 (May 11, 2015)
  • Enhancements
  • API changes
  • Index representation
  • Performance improvements
  • Bug fixes
  • Contributors
• Version 0.16.0 (March 22, 2015)
  • New features
  • Backwards incompatible API changes
  • Performance improvements
  • Bug fixes
  • Contributors

Version 0.15#

• Version 0.15.2 (December 12, 2014)
  • API changes
  • Enhancements
  • Performance
  • Bug fixes
  • Contributors
• Version 0.15.1 (November 9, 2014)
  • API changes
  • Enhancements
  • Bug fixes
  • Contributors
• Version 0.15.0 (October 18, 2014)
  • New features
  • Backwards incompatible API changes
  • Enhancements
  • Performance
  • Bug fixes
  • Contributors

Version 0.14#

• Version 0.14.1 (July 11, 2014)
  • API changes
  • Enhancements
  • Performance
  • Experimental
  • Bug fixes
  • Contributors
• Version 0.14.0 (May 31 , 2014)
  • API changes
  • Display changes
  • Text parsing API changes
  • GroupBy API changes
  • SQL
  • Multi-indexing using slicers
  • Plotting
  • Prior version deprecations/changes
  • Deprecations
  • Known issues
  • Enhancements
  • Performance
  • Experimental
  • Bug fixes
  • Contributors

Version 0.13#

• Version 0.13.1 (February 3, 2014)
  • Output formatting enhancements
  • API changes
  • Prior version deprecations/changes
  • Deprecations
  • Enhancements
  • Performance
  • Experimental
  • Bug fixes
  • Contributors
• Version 0.13.0 (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#

• Version 0.12.0 (July 24, 2013)
  • API changes
  • IO enhancements
  • Other enhancements
  • Experimental features
  • Bug fixes
  • Contributors

Version 0.11#

• Version 0.11.0 (April 22, 2013)
  • Selection choices
  • Selection deprecations
  • Dtypes
  • Dtype conversion
  • Dtype gotchas
  • Datetimes conversion
  • API changes
  • Enhancements
  • Contributors

Version 0.10#

• Version 0.10.1 (January 22, 2013)
  • API changes
  • New features
  • HDFStore
  • Contributors
• Version 0.10.0 (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#

• Version 0.9.1 (November 14, 2012)
  • New features
  • API changes
  • Contributors
• Version 0.9.0 (October 7, 2012)
  • New features
  • API changes
  • Contributors

Version 0.8#

• Version 0.8.1 (July 22, 2012)
  • New features
  • Performance improvements
  • Contributors
• Version 0.8.0 (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#

• Version 0.7.3 (April 12, 2012)
  • New features
  • NA boolean comparison API change
  • Other API changes
  • Contributors
• Version 0.7.2 (March 16, 2012)
  • New features
  • Performance improvements
  • Contributors
• Version 0.7.1 (February 29, 2012)
  • New features
  • Performance improvements
  • Contributors
• Version 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#

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

Version 0.5#

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

Version 0.4#

• Versions 0.4.1 through 0.4.3 (September 25 - October 9, 2011)
  • New features
  • Performance enhancements
  • Contributors