[main](forwardport #46618) docs: Prepare Changelog for 9.1.4 (#46699)

* docs: Prepare Changelog for 9.1.4 (#46618)

* docs: Close changelog for 9.1.4

* add markdown

* fix formatting

---------

Co-authored-by: elasticmachine <[email protected]>
Co-authored-by: Colleen McGinnis <[email protected]>
Co-authored-by: Eric Beahan <[email protected]>
(cherry picked from commit ecb59a5)

# Conflicts:
#	CHANGELOG.asciidoc
#	libbeat/docs/release.asciidoc

* resolve conflicts

---------

Co-authored-by: elastic-vault-github-plugin-prod[bot] <150874479+elastic-vault-github-plugin-prod[bot]@users.noreply.github.com>
Co-authored-by: Colleen McGinnis <[email protected]>

Author: 3 people

docs/release-notes/index.md

@@ -17,6 +17,45 @@ To check for security updates, go to [Security announcements for the Elastic sta
 
 % ### Fixes [beats-versionext-fixes]
 
+## 9.1.4 [beats-9.1.4-release-notes]
+
+### Features and enhancements [beats-9.1.4-features-enhancements]
+
+**Filebeat**
+
+- Improve HTTP JSON health status logic for empty template results. [46332]({{beats-pull}}46332)
+- Improve CEL input documentation of authentication options. [46253]({{beats-pull}}46253)
+- Add status reporting support for Azure Event Hub v2 input. [44846]({{beats-pull}}44846)
+- Add documentation for device collection in Entity Analytics Active Directory Filebeat's input. [46363]({{beats-pull}}46363)
+
+**Metricbeat**
+
+- Add support for Kafka 4.0 in the Kafka module. [44723]({{beats-pull}}44723)
+
+### Fixes [beats-9.1.4-fixes]
+
+**Affecting all Beats**
+
+- Fix a race condition during metrics initialization which could cause a panic. [45822]({{beats-issue}}45822) [46054]({{beats-pull}}46054)
+- Fixed a panic when the beat restarts itself by adding 'eventfd2' to default seccomp policy [46372]({{beats-issue}}46372)
+- Update github.com/go-viper/mapstructure/v2 to v2.4.0 [46335]({{beats-pull}}46335)
+- Update Go version to 1.24.7 [46070]({{beats-pull}}46070).
+- Update github.com/docker/docker to v28.3.3 [46334]({{beats-pull}}46334)
+
+**Filebeat**
+
+- Fix wrongly emitted missing input ID warning [42969]({{beats-issue}}42969) [45747]({{beats-pull}}45747)
+- Fix race condition that could cause Filebeat to hang during shutdown after failing to startup [45034]({{beats-issue}}45034) [46331]({{beats-pull}}46331)
+- Fixed hints autodiscover for Docker when the configuration is only `hints.enabled: true`. [45156]({{beats-issue}}45156) [45864]({{beats-pull}}45864)
+
+**Metricbeat**
+
+- Fix an issue where the conntrack metricset entries field reported a count inflated by a factor of the number of CPU cores. [46138]({{beats-issue}}46138) [46140]({{beats-pull}}46140)
+
+**Winlogbeat**
+
+- Fix forwarded event handling and add channel error resilience. [46190]({{beats-pull}}46190)
+
 ## 9.1.3 [beats-9.1.3-release-notes]
 
 ### Features and enhancements [beats-9.1.3-features-enhancements]