v2026-09-15.0

• RE-186: use the dropdown's own label on the Text Responses page
• DTS (Levelbuilder > Staging) [robo-dts]
• Use Identical jQuery CSS As In Sprockets
• Give the Rails Cache a Dedicated Directory
• Remove scss-lint
• Move All Remaining Sprockets-Managed Styles Into Apps
• Revert "Stop using and stubbing override_pegasus. (#75232)"
• PR 75243
• DTS (Levelbuilder > Staging) [robo-dts]
• Stop using and stubbing override_pegasus.
• Update Quiz's config panel (Build mode)
• [MUI Migration] Tooltip
• [SketchLab] Fixes a couple small labeling bugs
• Add ClassLink roster support
• DATA-318: Create anonymous_level_geos table
• * Reapply "DATA-317: Capture anon_user_id for anonymous project storage (#75089)"
• * Reapply "DATA-317: Capture anon_user_id for anonymous project storage (#75089)"
• DATA-316: Track anonymous level progress
• * Reapply "DATA-317: Capture anon_user_id for anonymous project storage (#75089)"
• * Reapply "DATA-317: Capture anon_user_id for anonymous project storage (#75089)"
• Revert "Revert "Add a student snapshot eyes and ui test (#75158)" (#75198)"
• Initialize Statsig in child puma process to fix DNS deadlock.
• PR 75223