●2.1.302 — Fork subagents are now on by default in claude -p, the Agent SDK and the desktop app. Turn them off with CLAUDE_CODE_FORK_SUBAGENT=0 (10/16)●2.1.307 — Fixes MCP failing to reconnect after sleep or a keychain lock (10/21). 2.1.306 also fixed the false claude -p login message●SONNET 4.5 — Retires on the Claude API on 11/30, 38 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●FAST MODE — Opus 5.5 fast mode is out of research preview and no longer needs the beta header (10/15)●NEW — I Put a Ten-Line Promise File at the To…●2.1.302 — Fork subagents are now on by default in claude -p, the Agent SDK and the desktop app. Turn them off with CLAUDE_CODE_FORK_SUBAGENT=0 (10/16)●2.1.307 — Fixes MCP failing to reconnect after sleep or a keychain lock (10/21). 2.1.306 also fixed the false claude -p login message●SONNET 4.5 — Retires on the Claude API on 11/30, 38 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●FAST MODE — Opus 5.5 fast mode is out of research preview and no longer needs the beta header (10/15)●NEW — I Put a Ten-Line Promise File at the To…

TAG

sub-agents

2 articles

← Back to all tags

Claude Code² CLAUDE-md¹ productivity¹ memory¹ prompt engineering¹ automation¹ workflow¹ agent¹ agent-teams¹

⟐ Claude Code/2026-03-21Intermediate

Designing CLAUDE.md for Stable Output — Hierarchy, Sub-Agents, and External Memory

Learn how to structure CLAUDE.md with a 3-tier hierarchy, sub-agent workflows, and external memory to keep Claude Code's output consistent — with the practical lessons that actually moved the needle in real operation.

⟐ Claude Code/2026-03-09Intermediate

Mastering Claude Code's Agent Features — From Sub-Agents to Teams

A practical guide to Claude Code's sub-agents, background tasks, and Agent Teams. Maximize development efficiency through context management and parallel processing.