How to get details about the last PR only

[levimatheri]

I have been trying to get commits and work items for the last PR only, but the sample template I've tried below gets all PRs, commits, and work items associated with the branch from which the build runs. Is there a way to get just the last PR/commit?

# Notes for build 
**Build Number**: {{buildDetails.id}}
**Build Trigger PR Number**: {{lookup buildDetails.triggerInfo 'pr.number'}} 

# Associated Pull Requests ({{pullRequests.length}})
{{#forEach pullRequests}}
{{#if isFirst}}### Associated Pull Requests (only shown if  PR) {{/if}}
*  **PR {{this.id}}**  {{this.title}}
{{/forEach}}

# Builds with associated WI/CS ({{builds.length}})
{{#forEach builds}}
{{#if isFirst}}## Builds {{/if}}
##  Build {{this.build.buildNumber}}
{{#forEach this.commits}}
{{#if isFirst}}### Commits {{/if}}
- CS {{this.id}}
{{/forEach}}
{{#forEach this.workitems}}
{{#if isFirst}}### Workitems {{/if}}
- WI {{this.id}}
{{/forEach}} 
{{/forEach}}

# Global list of WI ({{workItems.length}})
{{#forEach workItems}}
{{#if isFirst}}## Associated Work Items (only shown if  WI) {{/if}}
*  **{{this.id}}**  {{lookup this.fields 'System.Title'}}
  - **WIT** {{lookup this.fields 'System.WorkItemType'}} 
  - **Tags** {{lookup this.fields 'System.Tags'}}
{{/forEach}}

{{#forEach commits}}
{{#if isFirst}}### Associated commits{{/if}}
* ** ID{{this.id}}** 
  -  **Message:** {{this.message}}
  -  **Commited by:** {{this.author.displayName}} 
  -  **FileCount:** {{this.changes.length}} 
{{#forEach this.changes}}
      -  **File path (TFVC or TfsGit):** {{this.item.path}}  
      -  **File filename (GitHub):** {{this.filename}}  
{{/forEach}}
{{/forEach}}

[rfennell]

The task returns the changes since the last successful build. If it is the first successful run all items are returned. I suspect this is what you are seeing

Run the build with debugging enabled to see all the steps used to build the release notes

To enable debug, check the checkbook when you run the pipeline or set a variable

System.debug=true

[levimatheri]

Thank you. Yes indeed that's what's happening!