From 1f4cbd6409a1492c861f81f1e690f63586697048 Mon Sep 17 00:00:00 2001
From: Marcin Rataj <lidel@lidel.org>
Date: Thu, 25 May 2023 14:26:42 +0200
Subject: [PATCH] chore: add changelog

---
 docs/changelogs/v0.21.md | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/docs/changelogs/v0.21.md b/docs/changelogs/v0.21.md
index 57eb7002bad4..d323907cbf53 100644
--- a/docs/changelogs/v0.21.md
+++ b/docs/changelogs/v0.21.md
@@ -6,6 +6,7 @@
 
 - [Overview](#overview)
 - [🔦 Highlights](#-highlights)
+  - [Saving previously seen nodes for later bootstrapping](#saving-previously-seen-nodes-for-later-bootstrapping)
 - [📝 Changelog](#-changelog)
 - [👨‍👩‍👧‍👦 Contributors](#-contributors)
 
@@ -13,6 +14,21 @@
 
 ### 🔦 Highlights
 
+#### Saving previously seen nodes for later bootstrapping
+
+Kubo now stores a subset of connected peers as backup bootstrap nodes ([kubo#8856](https://github.com/ipfs/kubo/pull/8856)).
+These nodes are used in addition to the explicitly defined bootstrappers in the
+[`Bootstrap`](https://github.com/ipfs/kubo/blob/master/docs/config.md#bootstrap) configuration.
+
+This enhancement improves the resiliency of the system, as it eliminates the
+necessity of relying solely on the default bootstrappers operated by Protocol
+Labs for joining the public IPFS swarm. Previously, this level of robustness
+was only available in LAN contexts through [mDNS peer discovery](https://github.com/ipfs/kubo/blob/master/docs/config.md#discoverymdns)
+enabled.
+
+With this update, the same level of robustness is applied to peers that lack
+mDNS peers and solely rely on the public DHT.
+
 ### 📝 Changelog
 
 ### 👨‍👩‍👧‍👦 Contributors