new XLS/XLSX export configuration properties added for advanced features including auto-filter, row outline collapse/expand grouping and custom column width;
enhanced support for interactive sorting and filtering, with more filter criteria available depending on column data type and possibility to sort and filter on multiple columns at the same time;
improved virtualization by consolidating styling information for repeating subreports and by splitting large pages into smaller virtualized pieces for non-paginated reports;
the XML exporter was changed to use namespaces and thus allow pluggable generic element parameter value handlers;
minor bug fixes and improvements;