Translations:Major version upgrade/2/en
From LimeSurvey Manual
Notes for specific LimeSurvey versions
LimeSurvey 6
We updated LimeSurvey with a new design, which also includes an upgrade to the Bootstrap version being used for the admin- and surveytheme from Bootstrap 3 to 5.
After this upgrade, all custom survey themes will be uninstalled and reset to use our new default theme "Fruity TwentyThree", this also affects extended themes. Admin themes will be reset to the already existing "sea_green" theme which has been updated as well.