Update whats-new.asciidoc (#3529)

docs/en/observability/whats-new.asciidoc

@@ -3,25 +3,24 @@
 
 Here are the highlights of what's new and improved in {minor-version}.
 
-coming[8.10.0]
-
 // Other versions:
+// {observability-guide-all}/8.12/whats-new.html[8.12] |
+// {observability-guide-all}/8.11/whats-new.html[8.11] |
+// {observability-guide-all}/8.10/whats-new.html[8.10] |
+// {observability-guide-all}/8.9/whats-new.html[8.9] |
+// {observability-guide-all}/8.8/whats-new.html[8.8] |
+// {observability-guide-all}/8.7/whats-new.html[8.7] |
+// {observability-guide-all}/8.6/whats-new.html[8.6] |
+// {observability-guide-all}/8.5/whats-new.html[8.5] |
+// {observability-guide-all}/8.4/whats-new.html[8.4] |
+// {observability-guide-all}/8.3/whats-new.html[8.3] |
+// {observability-guide-all}/8.2/whats-new.html[8.2] |
 // {observability-guide-all}/8.1/whats-new.html[8.1] |
 // {observability-guide-all}/8.0/whats-new.html[8.0] |
-// {observability-guide-all}/7.17/whats-new.html[7.17] |
+// {observability-guide-all}/7.17/whats-new.html[7.17]
 
 // tag::whats-new[]
 
 // What's new content goes in here. Don't uncomment or remove the tags surrounding this content :)
 
-[discrete]
-== Conditional actions in alerting rules
-
-When creating an {observability} alerting rule, you define conditions that must be met for an alert to occur.
-Now you can also add conditions that affect the actions associated with an alert.
-For example, you might choose to send notifications only if the alert is received between defined hours.
-
-[role="screenshot"]
-image::images/conditional-actions.png[An example of the UI for triggering an action and alert, width=70%]
-
 // end::whats-new[]