diff --git a/res/css/views/rooms/_RoomUpgradeWarningBar.scss b/res/css/views/rooms/_RoomUpgradeWarningBar.scss
index 82785b82d2..fe81d3801a 100644
--- a/res/css/views/rooms/_RoomUpgradeWarningBar.scss
+++ b/res/css/views/rooms/_RoomUpgradeWarningBar.scss
@@ -16,7 +16,7 @@ limitations under the License.
 
 .mx_RoomUpgradeWarningBar {
     text-align: center;
-    height: 176px;
+    height: 235px;
     background-color: $event-selected-color;
     align-items: center;
     flex-direction: column;
diff --git a/src/components/views/rooms/RoomUpgradeWarningBar.js b/src/components/views/rooms/RoomUpgradeWarningBar.js
index 32969cdd3d..589608dcfa 100644
--- a/src/components/views/rooms/RoomUpgradeWarningBar.js
+++ b/src/components/views/rooms/RoomUpgradeWarningBar.js
@@ -37,47 +37,43 @@ module.exports = React.createClass({
     render: function() {
         const AccessibleButton = sdk.getComponent('elements.AccessibleButton');
 
-        let upgradeText = (
-            <div>
+        return (
+            <div className="mx_RoomUpgradeWarningBar">
+                <div className="mx_RoomUpgradeWarningBar_header">
+                    {_t(
+                        "This room is running room version <roomVersion />, which this homeserver has " +
+                        "marked as <i>unstable</i>.",
+                        {},
+                        {
+                            "roomVersion": () => <code>{this.props.room.getVersion()}</code>,
+                            "i": (sub) => <i>{sub}</i>,
+                        },
+                    )}
+                </div>
                 <div className="mx_RoomUpgradeWarningBar_body">
-                    {_t("This room is using an unstable room version. If you aren't expecting " +
-                        "this, please upgrade the room.")}
+                    <p>
+                        {_t(
+                            "Upgrading this room will shut down the current instance of the room and create " +
+                            "an upgraded room with the same name.",
+                        )}
+                    </p>
+                    <p>
+                        {_t(
+                            "<b>Warning</b>: Upgrading a room will <i>not automatically migrate room members " +
+                            "to the new version of the room.</i> We'll post a link to the new room in the old " +
+                            "version of the room - room members will have to click this link to join the new room.",
+                            {}, {
+                                "b": (sub) => <b>{sub}</b>,
+                                "i": (sub) => <i>{sub}</i>,
+                            },
+                        )}
+                    </p>
                 </div>
                 <p className="mx_RoomUpgradeWarningBar_upgradelink">
                     <AccessibleButton onClick={this.onUpgradeClick}>
-                        {_t("Click here to upgrade to the latest room version.")}
+                        {_t("Upgrade this room to the recommended room version")}
                     </AccessibleButton>
                 </p>
-            </div>
-        );
-        if (this.props.recommendation.urgent) {
-            upgradeText = (
-                <div>
-                    <div className="mx_RoomUpgradeWarningBar_header">
-                        {_t("There is a known vulnerability affecting this room.")}
-                    </div>
-                    <div className="mx_RoomUpgradeWarningBar_body">
-                        {_t("This room version is vulnerable to malicious modification of room state.")}
-                    </div>
-                    <p className="mx_RoomUpgradeWarningBar_upgradelink">
-                        <AccessibleButton onClick={this.onUpgradeClick}>
-                            {_t("Click here to upgrade to the latest room version and ensure room integrity " +
-                                "is protected.")}
-                        </AccessibleButton>
-                    </p>
-                </div>
-            );
-        }
-
-        return (
-            <div className="mx_RoomUpgradeWarningBar">
-                {upgradeText}
-                <div className="mx_RoomUpgradeWarningBar_body">
-                    {_t(
-                        "Members of the room will be required to click a link to join the " +
-                        "new room. No one will be automatically joined or invited to the new room.",
-                    )}
-                </div>
                 <div className="mx_RoomUpgradeWarningBar_small">
                     {_t("Only room administrators will see this warning")}
                 </div>
diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index a49fc485fe..976f902f27 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -812,7 +812,8 @@
     "Click here to upgrade to the latest room version.": "Click here to upgrade to the latest room version.",
     "There is a known vulnerability affecting this room.": "There is a known vulnerability affecting this room.",
     "This room version is vulnerable to malicious modification of room state.": "This room version is vulnerable to malicious modification of room state.",
-    "Click here to upgrade to the latest room version and ensure room integrity is protected.": "Click here to upgrade to the latest room version and ensure room integrity is protected.",
+    "This room is running room version <roomVersion/>, which this homeserver has marked as <i>unstable</i>.": "This room is running room version <roomVersion/>, which this homeserver has marked as <i>unstable</i>.",
+    "Upgrading this room will shut down the current instance of the room and create an upgraded room with the same name.": "Upgrading this room will shut down the current instance of the room and create an upgraded room with the same name.",
     "Only room administrators will see this warning": "Only room administrators will see this warning",
     "This Room": "This Room",
     "All Rooms": "All Rooms",