Add 7.16 release notes for Elastic Agent and Fleet (#1319)

* Add 7.16 release notes for Elastic Agent and Fleet

* Add line about preconfiguring alternative ES outputs

* Remove boiler plate text

* Remove empty section

docs/en/ingest-management/index.asciidoc

@@ -140,4 +140,4 @@ include::troubleshooting/troubleshooting.asciidoc[leveloffset=+2]
 
 include::troubleshooting/faq.asciidoc[leveloffset=+2]
 
-include::release-notes/release-notes-7.15.asciidoc[leveloffset=+1]
+include::release-notes/release-notes-7.16.asciidoc[leveloffset=+1]

docs/en/ingest-management/release-notes/release-notes-7.16.asciidoc

@@ -0,0 +1,169 @@
+// Use these for links to issue and pulls. 
+:kib-issue: https://github.com/elastic/kibana/issues/
+:kib-pull: https://github.com/elastic/kibana/pull/
+:agent-issue: https://github.com/elastic/beats/issues/
+:agent-pull: https://github.com/elastic/beats/pull/
+:fleet-server-issue: https://github.com/elastic/beats/issues/fleet-server/
+:fleet-server-pull: https://github.com/elastic/beats/pull/fleet-server/
+
+
+[[release-notes]]
+= Release notes
+
+This section summarizes the changes in each release.
+
+* <<release-notes-7.16.0>>
+
+Also see:
+
+* {kibana-ref}/release-notes.html[{kib} release notes]
+* {beats-ref}/release-notes.html[{beats} release notes]
+
+// begin 7.16.0 relnotes
+
+[[release-notes-7.16.0]]
+== {fleet} and {agent} 7.16.0
+
+Review important information about the {fleet} and {agent} 7.16.0 releases.
+
+
+[discrete]
+[[enhancements-7.16.0]]
+=== Enhancements
+
+Fleet::
+* Adds prompt for users to add an agent if they add an integration to an agent policy with no agents {kib-pull}114830[#114830]
+* Allow users with read access to view Integrations app {kib-pull}113925[#113925]
+* Removes enterprise license requirement for custom registry URL {kib-pull}113858[#113858]
+* Adds "Keep Policies up to Date" functionality for integrations {kib-pull}112702[#112702]
+* Allow packages to specify index privileges {kib-pull}112397[#112397]
+* Allow Integrations browse page to filter on descriptions {kib-pull}111649[#111649]
+* Support automatic upgrades of package policies when updating integrations {kib-pull}108269[#108269]
+* Allow preconfiguration of alternative {es} outputs {kib-pull}111002[#111002]
+
+{agent}::
+* Adds `diagnostics` command to {agent} {agent-pull}28265[#28265] {agent-pull}28461[#28461]
+* Enables `/debug/pprof/` endpoints for all {beats} that the {agent} starts {agent-pull}28983[#28983]
+
+[discrete]
+[[bug-fixes-7.16.0]]
+=== Bug fixes
+
+Fleet::
+* Link to the installed version of an integration from global search {kib-pull}115736[#115736]
+* Fixes agent count in update modal {kib-pull}114622[#114622]
+* Shows security requirements page when {es} security is not enabled {kib-pull}114583[#114583]
+* Improves default settings for {fleet} component templates {kib-pull}114101[#114101]
+* Report `installing` status while package install is in progress {kib-pull}111875[#111875]
+
+
+// end 7.16.0 relnotes
+
+// ---------------------
+//TEMPLATE
+//Use the following text as a template. Remember to replace the version info.
+
+// begin 7.16.x relnotes
+
+//[[release-notes-7.16.x]]
+//== {fleet} and {agent} 7.16.x
+
+//Review important information about the {fleet} and {agent} 7.16.x releases.
+
+//[discrete]
+//[[security-updates-7.16.x]]
+//=== Security updates
+
+//{fleet}::
+//* add info
+
+//{agent}::
+//* add info
+
+//[discrete]
+//[[breaking-changes-7.16.x]]
+//=== Breaking changes
+
+//Breaking changes can prevent your application from optimal operation and
+//performance. Before you upgrade, review the breaking changes, then mitigate the
+//impact to your application.
+
+//[discrete]
+//[[breaking-PR#]]
+//.Short description
+//[%collapsible]
+//====
+//*Details* +
+//<Describe new behavior.> For more information, refer to {kibana-pull}PR[#PR].
+
+//*Impact* +
+//<Describe how users should mitigate the change.> For more information, refer to {fleet-guide}/fleet-server.html[Fleet Server].
+//====
+
+//[discrete]
+//[[known-issues-7.16.x]]
+//=== Known issues
+
+//[[known-issue-issue#]]
+//.Short description
+//[%collapsible]
+//====
+
+//*Details* 
+
+//<Describe known issue.>
+
+//*Impact* +
+
+//<Describe impact or workaround.>
+
+//====
+
+//[discrete]
+//[[deprecations-7.16.x]]
+//=== Deprecations
+
+//The following functionality is deprecated in 7.16.x, and will be removed in
+//8.0.0. Deprecated functionality does not have an immediate impact on your
+//application, but we strongly recommend you make the necessary updates after you
+//upgrade to 7.16.x.
+
+//{fleet}::
+//* add info
+
+//{agent}::
+//* add info
+
+//[discrete]
+//[[new-features-7.16.x]]
+//=== New features
+
+//The 7.16.x release adds the following new and notable features.
+
+//{fleet}::
+//* add info
+
+//{agent}::
+//* add info
+
+//[discrete]
+//[[enhancements-7.16.x]]
+//=== Enhancements
+
+//{fleet}::
+//* add info
+
+//{agent}::
+//* add info
+
+//[discrete]
+//[[bug-fixes-7.16.x]]
+//=== Bug fixes
+
+//{fleet}::
+//* add info
+
+//{agent}::
+//* add info
+
+// end 7.16.x relnotes