SONAR-16164 Document new scanner parameter 'sonar.newCode.referenceBranch'

server/sonar-docs/src/pages/analysis/analysis-parameters.md

@@ -77,7 +77,7 @@ Key | Description | Default
 `sonar.scm.revision`| Overrides the revision, for instance the Git sha1, displayed in analysis results. By default value is provided by the CI environment or guessed by the checked-out sources.| 
 `sonar.buildString`| The string passed with this property will be stored with the analysis and available in the results of `api/project_analyses/search`, thus allowing you to later identify a specific analysis and obtain its ID for use with `api/project_analyses/set_baseline`. | |
 `sonar.analysis.[yourKey]`| This property stub allows you to insert custom key/value pairs into the analysis context, which will also be passed forward to [webhooks](/project-administration/webhooks/). | |
-
+`sonar.newCode.referenceBranch`| Defines the new code period for this branch to use the given branch as a reference branch, overriding the server's setting. See [New Code Period](/project-administration/new-code-period/). 
 
 ### Duplications
 Key | Description | Default
@@ -106,4 +106,4 @@ Key | Description | Default
 
 Key | Description
 ---|----|--- 
-`sonar.links.scm_dev` **![](/images/cross.svg)Deprecated since SQ 7.1** | Developer connection. | `<scm><developerConnection>` for Maven projects
+`sonar.links.scm_dev` **![](/images/cross.svg)Deprecated since SQ 7.1** | Developer connection. | `<scm><developerConnection>` for Maven projects

server/sonar-docs/src/pages/project-administration/new-code-period.md

@@ -35,7 +35,7 @@ You can define New Code as changes from a previous version, a specific analysis,
 
 - **Reference Branch** – Choose a specific branch to define your New Code. Any changes made from your reference branch are considered New Code.
 
-   Available at the project and branch level.
+   Available at the project and branch level. You can also specify a reference branch using a scanner parameter, overriding the server's definition. See the [Scanner Analysis Parameters](/analysis/analysis-parameters/).
 
 - **Number of days** – Specify a number of days for a floating New Code period. For example, setting **Number of Days** to 30 creates a floating New Code period beginning 30 days from the current date.
   Available at the global, project, and branch level.