Description: Sending to upstream is a command in Git that allows developers to send their local changes to a remote repository, known as ‘upstream’. This term refers to the direction in which changes flow, that is, from a local repository to a central or shared repository. The most commonly used command for this action is ‘git push’, which allows users to update the remote repository with their local commits. This process is fundamental in collaborative workflows, as it enables multiple developers to work on the same project and share their contributions efficiently. By sending changes upstream, developers ensure that their work is available to other team members, facilitating integration and continuous software development. Additionally, this command helps maintain synchronization between the local and remote repositories, which is crucial to avoid conflicts and ensure that all collaborators are working with the most up-to-date version of the code. In summary, ‘sending to upstream’ is an essential practice in using Git that enables effective collaboration in software development projects.