From cf48d2e9a4ed61349ee88684d28206fb23e08ea0 Mon Sep 17 00:00:00 2001
From: yashksaini-coder <yashksaini89@gmail.com>
Date: Sun, 24 Aug 2025 22:03:31 +0530
Subject: [PATCH] chore(app): Add 811.internal.rst

---
 newsfragments/811.internal.rst | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 newsfragments/811.internal.rst

diff --git a/newsfragments/811.internal.rst b/newsfragments/811.internal.rst
new file mode 100644
index 00000000..8d86c55d
--- /dev/null
+++ b/newsfragments/811.internal.rst
@@ -0,0 +1,7 @@
+Add Thin Waist address validation utilities and integrate into echo example
+
+- Add ``libp2p/utils/address_validation.py`` with dynamic interface discovery
+- Implement ``get_available_interfaces()``, ``get_optimal_binding_address()``, and ``expand_wildcard_address()``
+- Update echo example to use dynamic address discovery instead of hardcoded wildcard
+- Add safe fallbacks for environments lacking Thin Waist support
+- Temporarily disable IPv6 support due to libp2p handshake issues (TODO: re-enable when resolved)
\ No newline at end of file