Serverless changelog update for Jan. 6, 2025 (#251)

* Update serverless-changelog.asciidoc

* Merging feedback.

* Merging feedback

Author: jmikell821

serverless/pages/serverless-changelog.asciidoc

@@ -4,6 +4,48 @@ For serverless API changes, refer to https://www.elastic.co/docs/api/changes[API
 
 For serverless changes in Cloud Console, refer to https://www.elastic.co/guide/en/cloud/current/ec-release-notes.html[Elasticsearch Service Documentation: Release notes].
 
+[discrete]
+[[serverless-changelog-01062025]]
+=== January 6, 2025
+
+[discrete]
+[[deprecations-01062025]]
+==== Deprecations
+* Disables Elastic Observability Serverless log stream and settings pages ({kibana-pull}203996[#203996]). 
+* Removes Logs Explorer in Elastic Observability Serverless ({kibana-pull}203685[#203685]). 
+
+
+[discrete]
+[[features-01062025]]
+==== New features
+* Introduces case observables in Elastic Security Serverless ({kibana-pull}190237[#190237]).
+
+[discrete]
+[[enhancements-01062025]]
+==== Enhancements
+* Adds a JSON field called "additional fields" to ServiceNow cases when sent using connector, containing the internal names of the ServiceNow table columns ({kibana-pull}201948[#201948]).
+* Adds the ability to configure the appearance color mode to sync dark mode with the system value ({kibana-pull}203406[#203406]).
+* Makes the "Copy" action visible on cell hover in Discover ({kibana-pull}204744[#204744]).
+* Updates the `EnablementModalCallout` name to `AdditionalChargesMessage` in Elastic Security Serverless ({kibana-pull}203061[#203061]).
+* Adds more control over which Elastic Security Serverless alerts in Attack Discovery are included as context to the large language model ({kibana-pull}205070[#205070]).
+* Adds a consistent layout and other UI enhancements for {ml} pages ({kibana-pull}203813[#203813]).
+
+[discrete]
+[[fixes-01062025]]
+==== Fixes
+* Fixes an issue that caused dashboards to lag when dragging the time slider ({kibana-pull}201885[#201885]).
+* Updates the CloudFormation template to the latest version and adjusts the documentation to reflect the use of a single Firehose stream created by the new template ({kibana-pull}204185[#204185]).
+* Fixes Integration and Datastream name validation in Elastic Security Serverless ({kibana-pull}204943[#204943]).
+* Fixes an issue in the Automatic Import process where there is now inclusion of the `@timestamp` field in ECS field mappings whenever possible ({kibana-pull}204931[#204931]).
+* Allows Automatic Import to safely parse Painless field names that are not valid Painless identifiers in `if` contexts ({kibana-pull}205220[#205220]).
+* Aligns the Box Native Connector configuration fields with the source of truth in the connectors codebase, correcting mismatches and removing unused configurations ({kibana-pull}203241[#203241]).
+* Fixes the "Show all agent tags" option in Fleet when the agent list is filtered ({kibana-pull}205163[#205163]).
+* Updates the Results Explorer flyout footer buttons alignment in Data Frame Analytics ({kibana-pull}204735[#204735]).
+* Adds a missing space between lines in the Data Frame Analytics delete job modal ({kibana-pull}204732[#204732]).
+* Fixes an issue where the Refresh button in the Anomaly Detection Datafeed counts table was unresponsive ({kibana-pull}204625[#204625]).
+* Fixes the inference timeout check in File Upload ({kibana-pull}204722[#204722]).
+* Fixes the side bar navigation for the Data Visualizer ({kibana-pull}205170[#205170]).
+
 [discrete]
 [[serverless-changelog-12162024]]
 == December 16, 2024