diff --git a/1.56.0.md b/1.56.0.md
index e2b0950..4a467d2 100644
--- a/1.56.0.md
+++ b/1.56.0.md
@@ -2,6 +2,7 @@
 - improved `tailscale web` interface for configuring some device settings
 - improved responsiveness under load, especially with bidirectional traffic
 - correct choosing amongst multiple interfaces for portmapping
+- new `tailscale whois` subcommand to observe metadata associated with a Tailscale IP
 
 ### Linux
 - `containerboot` will symlink its socket file if it can, making the `tailscale` CLI work without `--socket=/tmp/tailscale.sock`