Core Changes

• partial fallbacks: only upgrade shells with remaining prerenderable params: #91158
• partial fallbacks: complete generic shells into more specific shells: #91231

Misc Changes

• Turbopack: Remove old macos-compress script: #90967
• docs: remove incorrect _document.tsx font example: #91346

Credits

Huge thanks to @bgw, @ztanner, and @zamadye for helping!