Core Changes

• [turbopack] Render code frames on the turbopack side: #90534
• Add experimental.lightningCssFeatures config option: #90901
• fix: correct appPaths sort order for parallel routes with route groups: #91160
• Tracing: tag spans as failed if their runner fn fails: #91206

Misc Changes

• [turbopack] hashing improvements to turbo-persistence: #90936
• [turbopack] Move empty snapshot filtering into take_snapshot: #90166
• docs(turbopack): Merge old turbo-tasks concept mdbook page with crate's top-level rustdoc: #91120
• Add RDC action test to deploy manifest and update PR test trigger: #91173
• [Turbopack] Don't attempt to compress key blocks containing small keys: #90881
• Lint against .context(format!(...)): #91122

Credits

Huge thanks to @lukesandberg, @bgw, @ijjk, @sokra, @mischnic, @timneutkens, and @wbinnssmith for helping!