Claude Code ships 14 releases in 16 days, letting plugins touch agent internals

Between October 1 and 16, 2026, Claude Code received 14 releases (2.1.287–2.1.302). The headline change is Claude Mods, which lets plugins modify deeper agent behavior via hooks like agent.spawn, prompt.change and $.ui.view. Haiku 5.5 became the default model and fork subagents are now on by default.

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Claude Code ships 14 releases in 16 days, letting plugins touch agent internals

Claude Mods lets plugins modify the agent's internal behavior, not just its surface
The agent.spawn hook lets plugins set prompts and models for new subagents
Haiku 5.5 is now the default model at $0.10/$0.50 per million tokens with 1M context
Fork subagents are enabled by default in claude -p, Agent SDK, desktop and VS Code

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Claude Code ships 14 releases in 16 days, letting plugins touch agent internals

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