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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.288 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.288 ·

Package manifests can now list optional peer dependencies

Claude Code now reads an optionalPeers field when it reads a package manifest

Under the hood No documentation found Internal Changes
JSON All of v2.1.288
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
PluginsArea: what it touches
Internal ChangesKind: in v2.1.288,
Internal ChangesSection of the release
What

When Claude Code reads a package manifest, the file that describes a package and what it depends on, it now also reads a field named optionalPeers.

Why

This gives Claude Code one more piece of information about a package's dependencies, the other packages it needs.

Read from
Names in the bundleoptionalPeers
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtWhich installer reads this field, and whether it is the plugin installer, is not known.

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