{"version":"2.1.317","anchor":"localhost-mux-also-listens-on-ipv6-1","canonical_anchor":"localhost-mux-also-listens-on-ipv6-1","heading":"The local proxy now also answers on the IPv6 localhost address","tier":"notice","area":"Network","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.317\/e\/localhost-mux-also-listens-on-ipv6-1","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.317","markdown":"### The local proxy now also answers on the IPv6 localhost address\n\nClaude Code's local proxy now listens on ::1 as well as 127.0.0.1, so tools that resolve localhost to IPv6 can reach it\n\n**What**\n\nClaude Code runs a small proxy on your own machine. It used to listen only on `127.0.0.1`, the usual address for your own computer. It now also listens on `[::1]`, the IPv6 form of that address, on the same port.\n\nIf `[::1]` cannot be used:\n\n- When the port is busy, it tries another port.\n\n- When IPv6 is unavailable, it logs that and keeps listening on `127.0.0.1` only.\n\n**Why**\n\nSome programs turn the name localhost into `::1` rather than `127.0.0.1`. Those programs could not reach the proxy before and now can.\n\n- Area: Network\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 1\/5\n- Scope: individual\n- Heads-up: no"}