• feat: #2854 Removed dynamic stylesheet and migrated to CSS vars. Thank you lmartorella
• feat: #3013 columns no longer require custom classes nor gridstack-extra.css as we now use CSS vars.
• fix: #2978 Very slow operation in 11.2.0 and higher with large blocks
• fix: #2947 loading responsive layout:'list' into smaller screen doesn't layout correctly.