See the solution below in explanation.
Explanation:
Step 1: Initialize the Default Main Branch
* Navigate to Azure DevOps:
* Go to Azure DevOps and sign in with your credentials.
* Select Your Project:
* Choose Project1 from your list of projects.
* Initialize the Main Branch:
* Go to Repos > Files.
* If the main branch does not exist, you will see an option to initialize it. Click on Initialize and follow the prompts to create the main branch1.
Step 2: Enable Squash Merge for the Main Branch
* Navigate to Branch Policies:
* Go to Repos > Branches.
* Find the main branch and click on the ... (ellipsis) next to it.
* Select Branch policies.
* Enable Squash Merge:
* Under Policies, scroll down to the Merge strategy section.
* Select Squash merge as the required merge strategy2.
* Save Changes:
* Click on Save changes to apply the policies.
Step 3: Verify the Squash Merge Policy
* Create a Pull Request:
* Make a change in a branch and create a pull request to merge it into the main branch.
* Complete the Pull Request:
* Ensure that the pull request uses the squash merge strategy by selecting Squash commit under the Merge type in the Complete pull request dialog