lightning-datatable
This behavior has changed.
During inline editing, validation errors appear on the cell itself rather than on the whole datatable.
This attribute has changed.
wrap-table-header—This attribute is now a string instead of a boolean. In addition to clipping or wrapping all table headers, you can now wrap or clip table headers based on the wrap and clip settings for each individual column. Accepted values are all, none, and by-column. The default setting is by-column.
Believe the changes that are required are on datatable.js, lines 1546 and 1549 - from boolean to string.
Steps to reproduce the behavior:
Expected Behavoir: Column width definitions should be respected
Actual Behavoir: Column width set to 0
https://help.salesforce.com/s/articleView?id=release-notes.salesforce_release_notes.htm&language=en_US&release=252&type=5
Believe the changes that are required are on datatable.js, lines 1546 and 1549 - from boolean to string.