docs: Prepare Changelog for 7.9.3 (#22073) (#22075)

* docs: Close changelog for 7.9.3

* Apply suggestions from code review

Co-authored-by: kuisathaverat <kuisathaverat@gmail.com>
Co-authored-by: Ivan Fernandez Calvo <kuisathaverat@users.noreply.github.com>

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

CHANGELOG.asciidoc

@@ -3,6 +3,30 @@
 :issue: https://github.com/elastic/beats/issues/
 :pull: https://github.com/elastic/beats/pull/
 
+[[release-notes-7.9.3]]
+=== Beats version 7.9.3
+https://github.com/elastic/beats/compare/v7.9.2...v7.9.3[View commits]
+
+==== Bugfixes
+
+*Affecting all Beats*
+
+- The `o365input` and `o365` module now recover from an authentication problem or other fatal errors, instead of terminating. {pull}21258[21258]
+
+*Auditbeat*
+
+- system/socket: Fixed a crash due to concurrent map read and write. {issue}21192[21192] {pull}21690[21690]
+
+*Filebeat*
+
+- Add field limit check for AWS Cloudtrail flattened fields. {pull}21388[21388] {issue}21382[21382]
+*Metricbeat*
+
+- Fix remote_write flaky test. {pull}21173[21173]
+- Fix panic in kubernetes autodiscover related to keystores {issue}21843[21843] {pull}21880[21880]
+- [Kubernetes] Remove redundant dockersock volume mount {pull}22009[22009]
+
+
 [[release-notes-7.9.2]]
 === Beats version 7.9.2
 https://github.com/elastic/beats/compare/v7.9.1...v7.9.2[View commits]

CHANGELOG.next.asciidoc

@@ -379,6 +379,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Fix panic in kubernetes autodiscover related to keystores {issue}21843[21843] {pull}21880[21880]
 - [Kubernetes] Remove redundant dockersock volume mount {pull}22009[22009]
 - Revert change to report `process.memory.rss` as `process.memory.wss` on Windows. {pull}22055[22055]
+- Add a switch to the driver definition on SQL module to use pretty names {pull}17378[17378]
 
 *Packetbeat*
 
@@ -821,3 +822,6 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 ==== Known Issue
 
 *Journalbeat*
+
+
+

libbeat/docs/release.asciidoc

@@ -8,6 +8,7 @@ This section summarizes the changes in each release. Also read
 <<breaking-changes>> for more detail about changes that affect
 upgrade.
 
+* <<release-notes-7.9.3>>
 * <<release-notes-7.9.2>>
 * <<release-notes-7.9.1>>
 * <<release-notes-7.9.0>>