diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ac25a3..a854ee5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,25 @@ one of them changed. An entry says which artefact and which version, so `web 0.1
 Every version published to a channel appears here. Nothing is written from memory afterwards: a build
 cannot be published without its entry.
 
+## 2026-10-08 — Remote desktop streams video as H.264 `agent 0.35.0` `web 0.151.0` `api 0.121.0`
+
+The remote screen is now streamed as H.264 video when your browser and the machine both can, so a
+video playing on the machine, a window being dragged or a page scrolling reaches you smoothly instead
+of as a stream of still images, and with far less bandwidth. The agent uses the graphics card's
+encoder when there is one and the Windows software encoder otherwise; your browser decodes the stream
+itself. The bitrate adapts to the connection, and a screen that stops changing stops costing anything
+after half a second.
+
+When either end cannot — an older browser, an older agent, or a machine without a Media Foundation
+encoder — the session uses the existing image stream exactly as before. The status line under the
+picture now says which one you are getting: **H.264 video** or **JPEG images**. On Windows Server the
+software encoder comes with the optional Media Foundation feature (`Install-WindowsFeature
+Server-Media-Foundation`, then restart); without it the server streams images and the agent's event
+log says why.
+
+Update the agent release image, the API image and the web console image. They can be updated in any
+order; video starts once all three are. No database update is required.
+
 ## 2026-10-07 — Remote desktop follows the lock screen and UAC prompts `agent 0.34.0` `web 0.150.1`
 
 A remote-desktop session no longer pauses when the person at the machine locks it or a Windows