/deprecations

# what is going away and when

claude-codefeatured / npm installation method warning

deprecated: 2026-01-15 • removal: 2026-06-01

countdown: 90 days

→ Switch to the official installer script from Anthropic docs.

affects: package.json scripts, CI bootstrap steps

openai / GPT-4 Turbo model id critical

deprecated: 2025-04-14 • removal: 2026-04-14

countdown: 42 days

→ Move to gpt-4.1 or gpt-4o in harness model configs.

affects: Any config using gpt-4-turbo

aider / Legacy monolithic .aider.conf.yml pattern info

deprecated: 2025-12-01

→ Split model-specific settings into dedicated config entries.

affects: .aider.conf.yml

cline / Old MCP server env layout warning

deprecated: 2026-02-10

→ Use explicit MCP server blocks with per-server credentials.

affects: cline settings + MCP config