Read about all the changes in v4:
https://fullcalendar.io/docs/upgrading-from-v3
Obscure breaking changes from v3->v4 not mentioned elsewhere:
touchMouseIgnoreWait
moved to(packageRoot).config.touchMouseIgnoreWait
dataAttrPrefix
moved to(packageRoot).config.dataAttrPrefix
Advancements since latest prerelease:
- New styling for buttons and icons in header. New styling for events.
- Bugfixes: #4539, #4503, #4534, #4505, #4477, #4467, #4454, #4458, #4483,
#4517, #4506, #4435, #4498, #4497, #4446, #4432, #4530
NOTE: version "4.0.0" was skipped because of an NPM publishing error