Changelog for 2.268

Legend:

security fix
major bug fix
bug fix
major enhancement
enhancement

Community feedback:

no major issues
notable issues
required rollback

What's new in 2.268 (2020-11-24)

Fix drag and drop with environment filter (regression in 2.264). (issue 64252)
Update the bundled XStream library from 1.4.13 to 1.4.14. (pull 5074, XStream 1.4.14 changelog)