docs: v3.42.0 release notes

[hannesrudolph]

Summary

Adds Roo Code v3.42.0 release notes and updates the docs navigation.

Changes

• Add v3.42.0 release notes page
• Add hero image for v3.42.0
• Update update-notes index and sidebar entries

---

Important

Adds v3.42.0 release notes, hero image, and updates documentation index and sidebar.

• Release Notes:
  • Adds v3.42.0.mdx with details on new features, bug fixes, and improvements.
  • Includes a hero image /img/v3.42.0/v3.42.0.png.
• Documentation:
  • Updates index.md to include a link to v3.42.0.
  • Updates sidebars.ts to include v3.42.0 under the 'Extension Release Notes' category.

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Project	Deployment	Review	Updated (UTC)
roo-code-docs	Ready	Preview, Comment	Jan 23, 2026 6:24am

[roomote]

Oroocle   Follow along on Roo Cloud

Review status: 1 issue flagged.

• Escape < / <= in .roo/rules-release-notes-writer/1_main_workflow.xml text so the file remains valid XML.

_{Mention @roomote in a comment to request specific changes to this pull request or fix all unresolved issues.}

[roomote]

This file is XML, so literal < characters in text content will break parsing. These threshold lines should use XML entities (< / <=) (or move the block into a CDATA section) so the workflow file remains valid.

Suggested change

	- 0.45 <= score < 0.65 OR multiple candidates within 0.05 -> ambiguous (needs review)
	- score < 0.45 -> unlinked
	- 0.45 <= score < 0.65 OR multiple candidates within 0.05 -> ambiguous (needs review)
	- score < 0.45 -> unlinked

_{Fix it with Roo Code or mention @roomote and request a fix.}