Since: v2.3.2.
In version 2.3.2 we added ability to shown information in user pickers about holidays added to “Holiday scheme“ e.g. public or religious holidays:
This feature could be helpful especially in international teams when every country has his own holidays e.g. Independence Day
By default this option is disabled in configuration.
Jira Administrator can enable “Show for holidays“ option in “User vacation warning“ section.