What’s new in 1.1.5 (December 07, 2020)

These are the changes in pandas 1.1.5. See Release notes for a full changelog including other versions of pandas.

Warning

Previously, the default argument engine=None to pd.read_excel would result in using the xlrd engine in many cases. The engine xlrd is no longer maintained, and may not work if defusedxml is installed. Hence, from version 1.1.5 in Debian and 1.2.0 upstream, if openpyxl is installed, many of these cases will now default to using the openpyxl engine. See the read_excel() documentation for more details.

Fixed regressions

Bug fixes

  • Bug in pytables methods in python 3.9 (GH38041)

Other

  • Only set -Werror as a compiler flag in the CI jobs (GH33315, GH33314)

Contributors

For contributors, please see /usr/share/doc/contributors_list.txt or https://github.com/pandas-dev/pandas/graphs/contributors