[docs] 7.2 release highlights (elastic#2292)

# Conflicts:
#	docs/guide/apm-release-notes.asciidoc

docs/guide/apm-breaking-changes.asciidoc

@@ -3,8 +3,14 @@
 
 This section discusses the changes that you need to be aware of when migrating your application from one version of APM to another.
 
-* <<breaking-7.0.0, APM version 7.0.0>>
-* <<breaking-6.4.0, APM version 6.4.0>>
+* <<breaking-7.2.0>>
+* <<breaking-7.1.0>>
+* <<breaking-7.0.0>>
+* <<breaking-6.8.0>>
+* <<breaking-6.7.0>>
+* <<breaking-6.6.0>>
+* <<breaking-6.5.0>>
+* <<breaking-6.4.0>>
 
 Also see <<apm-release-notes>>.
 
@@ -14,8 +20,18 @@ Also see <<apm-release-notes>>.
 
 // end::notable-v8-breaking-changes[]
 
+[[breaking-7.2.0]]
+=== 7.2.0 APM Breaking changes
+
+No breaking changes.
+
+[[breaking-7.1.0]]
+=== 7.1.0 APM Breaking changes
+
+No breaking changes.
+
 [[breaking-7.0.0]]
-=== Breaking changes in 7.0.0
+=== 7.0.0 APM Breaking changes
 
 APM Server::
 +
@@ -49,8 +65,28 @@ The migration assistant will reindex your older data in the new ECS format.
 
 include::../field-name-changes.asciidoc[]
 
+[[breaking-6.8.0]]
+=== 6.8.0 APM Breaking changes
+
+No breaking changes.
+
+[[breaking-6.7.0]]
+=== 6.7.0 APM Breaking changes
+
+No breaking changes.
+
+[[breaking-6.6.0]]
+=== 6.6.0 APM Breaking changes
+
+No breaking changes.
+
+[[breaking-6.5.0]]
+=== 6.5.0 APM Breaking changes
+
+No breaking changes.
+
 [[breaking-6.4.0]]
-=== Breaking changes in 6.4.0
+=== 6.4.0 APM Breaking changes
 
 We previously split APM data into separate indices (transaction, span, error, etc.).
 In 6.4 APM Kibana UI starts to leverage those separate indices for queries.

docs/guide/apm-release-notes.asciidoc

@@ -17,6 +17,12 @@ For a full list of changes, see the
 * <<release-notes-6.4.1>>
 * <<release-notes-6.4.0>>
 
+//NOTE: The notable-highlights tagged regions are re-used in the
+//Installation and Upgrade Guide
+// tag::notable-v8-highlights[]
+
+// end::notable-v8-highlights[]
+
 [[release-highlights-7.2.0]]
 === APM version 7.2.0
 
@@ -25,7 +31,24 @@ For a full list of changes, see the
 
 *APM Server*
 
-* Support for {apm-server-ref-v}/ilm.html[index lifecycle management (ILM)]
+* Added support for {apm-server-ref-v}/ilm.html[index lifecycle management (ILM)]:
+ILM enables you to automate how you want to manage your indices over time,
+by automating rollovers to a new index when the existing index reaches a specified size or age.
+* Added Geo-IP processing to the default ingest pipeline:
+Pipelines are still disabled by default, but activation now includes a new Geo-IP pipeline.
+The Geo-IP pipeline takes an extracted IP address from RUM events and stores it in the `client.geo` field.
+This makes it much easier to use location data in Kibana's Visualize maps and Maps app directly:
+
+[role="screenshot"]
+image::kibana-geo-data.png[Kibana maps app]
+
+*APM UI*
+
+* APM + Uptime integration: APM transactions now include links to the Uptime UI when data is available.
+* Added a global filter for {kibana-ref}/filters.html#environment-selector[service environments]:
+You can now easily name and switch between environments in the APM UI.
+* Added support for {kibana-ref}/metrics.html[agent specific metrics]:
+Java is the first to get custom metrics in the APM UI, with more agents to follow.
 
 [[release-highlights-7.1.0]]
 === APM version 7.1.0