"4.1" typically refers to a version number in software development, indicating a specific release of a program or application. The first digit represents the major version, while the second digit signifies a minor update or improvement. This numbering system helps users identify the features and changes made since the previous version. In many cases, a version like "4.1" may include bug fixes, performance enhancements, or new functionalities compared to its predecessor, such as "4.0." Software developers often use this system to communicate updates clearly to users, ensuring they understand the evolution of the software, like Microsoft Office or Adobe Photoshop.