Azure Repos - New enhancements to pull request experience

With this sprint release, we’re bringing several enhancements to the pull request (PR) experience following the feedback that was provided by [the community](https://devblogs.microsoft.com/devops/introducing-the-new-pull-request-experience-for-azure-repos/). This effort is an addition to our [previous investments](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-177-update#azure-repos-1) done in Sprint 177. Other key features to enhance the overall user experience are now available: ### Azure Repos * [Single-click to toggle between inline and diff views](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#single-click-to-toggle-between-inline-and-diff-views) * [Navigation to parent commits](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#navigation-to-parent-commits) * [More space for folders and files with long names in the PR files tab](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#more-space-for-folders-and-files-with-long-names-in-the-pr-files-tab) * [Preserve scroll position when resizing diff pane in PR files tab](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#preserve-scroll-position-when-resizing-diff-pane-in-pr-files-tab) * [Search for a commit on a mobile device](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#search-for-a-commit-on-a-mobile-device) * [Improved usage of space for new PR file diff mobile view](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#improved-usage-of-space-for-new-pr-file-diff-mobile-view) * [Enhanced images in PR Summary view](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#enhanced-images-in-pr-summary-view) * [Enhanced branch experience when creating a new PR](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#enhanced-branch-experience-when-creating-a-new-pr) ### Azure Pipelines * [Historical graph for agent pools (public preview)](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#historical-graph-for-agent-pools-preview) * [ServiceNow change management integration with YAML pipelines](https://docs.microsoft.com/en-us/azure/devops/release-notes/2020/sprint-179-update#servicenow-change-management-integration-with-yaml-pipelines) * Azure DevOps * Azure Repos * Features * [ Azure DevOps](https://azure.microsoft.com/en-gb/products/devops/)