Protobackup has enough functionality to cover all your needs.
Create daily recurring backups of your public and private Azure DevOps repositories. Don’t worry about maintaining, executing or documenting your own backup script.
The audit log is a centralized stream of all system and user activity within your ProtoBackup installation. Easily monitor your backups and account activity with this feature.
Backups include not only the repository with all branches, but also all associated metadata, such as issues, milestones, pull requests, releases, wikis and more
ProtoBackup creates daily snapshots of all your backups. You can easily restore a previous state of your repository or metadata up to 30 days back in time.
When you need to recover a repository, you can restore your repository including metadata, such as issues and milestones, directly back to Azure DevOps via the Azure DevOps API.
Sync backups to your own cloud storage (currently Amazon S3) to keep an offsite copy of your data and for longterm backup retention.
You can clone any snapshot of your Azure DevOps backup directly from ProtoBackup. This means you can access your data anytime, even if Azure DevOps is temporarily not available.
ProtoBackup checks your GitHub account on a daily basis for new repositories and automatically creates backups.