{"version":"2.1.75","anchor":"concurrent-session-detection","canonical_anchor":"concurrent-session-detection","heading":"Concurrent Session Detection","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.75\/e\/concurrent-session-detection","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.75","markdown":"### Concurrent Session Detection\n\n**What**\n\nClaude Code now detects when multiple sessions are running simultaneously and offers a relevant tip.\n\n**Details**\n\n- Sessions register PID files in the Claude Code data directory\n- When 2+ sessions are detected, a tip suggests: \"Running multiple Claude sessions? Use \/color and \/rename to tell them apart at a glance.\"\n- Session count is also reported via telemetry (`tengu_concurrent_sessions`)\n\n**Evidence**\n\nConcurrent session tracking (search for `\"concurrentSessions\"`, `\"color-when-multi-clauding\"`)"}