diff --git a/Tailscale-1.20.md b/Tailscale-1.20.md
index 4a0abb6..947f7c4 100644
--- a/Tailscale-1.20.md
+++ b/Tailscale-1.20.md
@@ -11,6 +11,7 @@
 - CLI now refuses to let you pick an invalid exit node (when connected)
 - packet filter now supports matching any IP protocol number (previously only TCP, UDP, ICMP and SCTP) when enabled in ACLs 
 - added `Online` boolean to `tailscale status --json`, made `tailscale status` show offline nodes
+- added `tailscale up --json`
 
 ## Linux
 - `tailscale file cp` sends via the local tailscaled now, so it now supports `tailscaled` running in tun-free, `userspace-networking` mode (such as on Synology DSM7 unless you [enable TUN mode](https://tailscale.com/kb/1152/synology-outbound/))