Claude Code Changelogs Recent Archive Source-level · unofficial Updates
← All changelogs v2.1.4
Claude Code · Source-level changelog

Version 2.1.4

This is a minor maintenance release that adds a new environment variable to disable background tasks and improves OAuth authentication reliability with automatic token refresh on 401 errors. The changes are primarily internal with one user-configurable option.

Package @anthropic-ai/claude-code Diff v2.1.3 → v2.1.4
4
Features & Changes
0
Bug Fixes
0
In Development
0
Env Vars / Flags

Changes

2 items

Environment Variable to Disable Background Tasks #

What

New CLAUDE_CODE_DISABLE_BACKGROUND_TASKS environment variable allows disabling the background task functionality.

Usage
export CLAUDE_CODE_DISABLE_BACKGROUND_TASKS=1
claude
Details
  • When set, the run_in_background parameter documentation is hidden from tool descriptions
  • The ctrl+b shortcut to background a task is disabled
  • Background agent execution via run_in_background parameter is disabled
  • Useful for environments where background task management is not desired or causes issues
Evidence

Go8() at line 280507 (background task doc generator, checks CLAUDE_CODE_DISABLE_BACKGROUND_TASKS); ifA at line 447674 (Task agent parameter schema, gated by same env var)

OAuth 401 Automatic Retry #

Improved authentication reliability by automatically refreshing OAuth tokens when a 401 Unauthorized response is received from the API.

Details
  • When an API request fails with 401, the system now automatically refreshes the access token and retries the request
  • Reduces authentication failures during long sessions where tokens may expire
  • Telemetry event tengu_grove_oauth_401_received tracks when this occurs
Evidence

GY1() at line 317361 (OAuth retry wrapper, emits "tengu_grove_oauth_401_received" telemetry)

Notes

2 items
  • Build time updated from 2026-01-09T21:05:14Z to 2026-01-10T22:23:05Z
  • High structural similarity (99.9%) indicates this is a minor patch release with targeted changes