diff --git a/versioned_docs/version-2.21/release-notes.md b/versioned_docs/version-2.21/release-notes.md
index dc3da888..c1a5bed5 100644
--- a/versioned_docs/version-2.21/release-notes.md
+++ b/versioned_docs/version-2.21/release-notes.md
@@ -1,7 +1,7 @@
[comment]: # (Code generated by relnotesgen. DO NOT EDIT.)
# Telepresence Release Notes
-## Version 2.21.0
+## Version 2.21.0 (December 13)
##
[Automatic VPN conflict avoidance](reference/vpn)
@@ -137,6 +137,12 @@ There's no need for two configmaps that store configuration data for the traffic
The ability to collect trace has been removed along with the `telepresence gather-traces` and `telepresence upload-traces` commands. The underlying code was complex and has not been well maintained since its inception in 2022. We have received no feedback on it and seen no indication that it has ever been used.
+## Remove obsolete code checking the Docker Bridge for DNS
+
+
+The DNS resolver checked the Docker bridge for messages on Linux. This code was obsolete and caused problems when running in Codespaces.
+
+
## Fix telepresence connect confusion caused by /.dockerenv file
diff --git a/versioned_docs/version-2.21/release-notes.mdx b/versioned_docs/version-2.21/release-notes.mdx
index dc9c9a96..b30043e2 100644
--- a/versioned_docs/version-2.21/release-notes.mdx
+++ b/versioned_docs/version-2.21/release-notes.mdx
@@ -7,7 +7,7 @@ import { Note, Title, Body } from '@site/src/components/ReleaseNotes'
[comment]: # (Code generated by relnotesgen. DO NOT EDIT.)
# Telepresence Release Notes
-## Version 2.21.0
+## Version 2.21.0 (December 13)
Automatic VPN conflict avoidance
Telepresence not only detects subnet conflicts between the cluster and workstation VPNs but also resolves them by performing network address translation to move conflicting subnets out of the way.
@@ -101,6 +101,10 @@ A default can still be explicitly defined using the `config.intercept.defaultPor
Tracing was removed.
The ability to collect trace has been removed along with the `telepresence gather-traces` and `telepresence upload-traces` commands. The underlying code was complex and has not been well maintained since its inception in 2022. We have received no feedback on it and seen no indication that it has ever been used.
+
+ Remove obsolete code checking the Docker Bridge for DNS
+ The DNS resolver checked the Docker bridge for messages on Linux. This code was obsolete and caused problems when running in Codespaces.
+
Fix telepresence connect confusion caused by /.dockerenv file
A `/.dockerenv` will be present when running in a GitHub Codespaces environment. That doesn't mean that telepresence cannot use docker, or that the root daemon shouldn't start.