docs: Prepare Changelog for 8.17.9 (#45344)

* docs: Close changelog for 8.17.9

* Update CHANGELOG.asciidoc

* Update CHANGELOG.next.asciidoc

* Update CHANGELOG.asciidoc

Co-authored-by: Colleen McGinnis <colleen.mcginnis@elastic.co>

---------

Co-authored-by: elasticmachine <elasticmachine@elastic.co>
Co-authored-by: Pierre HILBERT <pierre.hilbert@elastic.co>
Co-authored-by: Colleen McGinnis <colleen.mcginnis@elastic.co>

Author: 4 people

CHANGELOG.asciidoc

@@ -3,6 +3,41 @@
 :issue: https://github.com/elastic/beats/issues/
 :pull: https://github.com/elastic/beats/pull/
 
+[[release-notes-8.17.9]]
+=== Beats version 8.17.9
+https://github.com/elastic/beats/compare/v8.17.8\...v8.17.9[View commits]
+
+==== Breaking changes
+
+*Metricbeat*
+
+- Change index summary metricset to use `_nodes/stats` API instead of `_stats` API to avoid data gaps. {pull}45049[45049]
+
+==== Bugfixes
+
+*Affecting all Beats*
+
+- The Elasticsearch output now correctly applies exponential backoff when being throttled by 429s ("too many requests") from Elasticsarch. {issue}36926[36926] {pull}45073[45073]
+
+*Filebeat*
+
+- Add missing "text/csv" content-type filter support in GCS input. {issue}44922[44922] {pull}44923[44923]
+
+*Winlogbeat*
+
+- Fix EvtVarTypeAnsiString conversion. {pull}44026[44026]
+
+==== Added
+
+*Heartbeat*
+
+- Upgrade Node version to latest LTS v20.19.3. {pull}45087[45087]
+
+*Metricbeat*
+
+- Increase default polling period for MongoDB module from 10s to 60s. {pull}44781[44781]
+
+
 [[release-notes-8.17.8]]
 === Beats version 8.17.8
 https://github.com/elastic/beats/compare/v8.17.7\...v8.17.8[View commits]

CHANGELOG.next.asciidoc

@@ -36,8 +36,6 @@ https://github.com/elastic/beats/compare/v8.8.1\...main[Check the HEAD diff]
 
 *Metricbeat*
 
-- Change index summary metricset to use `_nodes/stats` API instead of `_stats` API to avoid data gaps. {pull}45049[45049]
-- Add support for `_nodes/stats` URIs that work with legacy versions of Elasticsearch {pull}44307[44307]
 - Setting period for counter cache for Prometheus remote_write at least to 60sec {pull}38553[38553]
 - Remove fallback to the node limit for the `kubernetes.pod.cpu.usage.limit.pct` and `kubernetes.pod.memory.usage.limit.pct` metrics calculation
 
@@ -79,7 +77,6 @@ https://github.com/elastic/beats/compare/v8.8.1\...main[Check the HEAD diff]
 - Set timeout of 1 minute for FQDN requests {pull}37756[37756]
 - The Kafka output now drops events when there is an authorization error. {issue}42343[42343] {pull}42401[42401]
 - 'add_cloud_metadata' processor - improve AWS provider HTTP client overriding to support custom certificate bundle handling {pull}44189[44189]
-- The Elasticsearch output now correctly applies exponential backoff when being throttled by 429s ("too many requests") from Elasticsarch. {issue}36926[36926] {pull}45073[45073]
 
 *Auditbeat*
 
@@ -116,7 +113,6 @@ https://github.com/elastic/beats/compare/v8.8.1\...main[Check the HEAD diff]
 - Fix publication of group data from the Okta entity analytics provider. {pull}40681[40681]
 - Ensure netflow custom field configuration is applied. {issue}40735[40735] {pull}40730[40730]
 - Fix a bug in Salesforce input to only handle responses with 200 status code {pull}41015[41015]
-- Added missing "text/csv" content-type filter support in GCS input. {issue}44922[44922] {pull}44923[44923]
 
 *Heartbeat*
 
@@ -151,7 +147,6 @@ https://github.com/elastic/beats/compare/v8.8.1\...main[Check the HEAD diff]
 
 *Winlogbeat*
 
-- Fix EvtVarTypeAnsiString conversion {pull}44026[44026]
 
 
 *Elastic Logging Plugin*
@@ -235,7 +230,6 @@ https://github.com/elastic/beats/compare/v8.8.1\...main[Check the HEAD diff]
 
 - Added status to monitor run log report.
 - Upgrade node to latest LTS v18.20.3. {pull}40038[40038]
-- Upgrade node to latest LTS v20.19.3. {pull}45087[45087]
 
 *Metricbeat*
 
@@ -267,7 +261,6 @@ https://github.com/elastic/beats/compare/v8.8.1\...main[Check the HEAD diff]
 - Added Cisco Meraki module {pull}40836[40836]
 - Added Palo Alto Networks module {pull}40686[40686]
 - Restore docker.network.in.* and docker.network.out.* fields in docker module {pull}40968[40968]
-- Increase default polling period for MongoDB module from 10s to 60s {pull}44781[44781]
 
 *Metricbeat*
 
@@ -322,44 +315,3 @@ https://github.com/elastic/beats/compare/v8.8.1\...main[Check the HEAD diff]
 
 
 
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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-8.17.9>>
 * <<release-notes-8.17.8>>
 * <<release-notes-8.17.7>>
 * <<release-notes-8.17.6>>