In this article, we shall discuss How to determine Cygwin version. Considering many software packages or tools may require a specific version of Cygwin or may not be compatible with older versions. Knowing your version helps you ensure compatibility with the software you intend to use. Please see How to install Kerberos packages with Cygwin on Windows, how to determine GPO from GUID or Name, and How to create a Dev Drive on Windows 11.

Note: Since software vulnerabilities are discovered regularly. Knowing your Cygwin version allows you to check if you are running the latest version with all security patches. If your version is outdated, you may be at risk of exploitation through known vulnerabilities.

Cygwin is free software that provides a Unix-like environment and software toolset to users of any modern 32-bit and 64-bit versions of Microsoft Windows. Cygwin consists of a Unix system call emulation library, cygwin1.dll, together with a vast set of GNU and other free software applications organized into a large number of optional packages.

Among these packages are high-quality compilers and other software development tools, an X11 server. A complete X11 development toolkit, GNU emacs, TeX and LaTeX, OpenSSH (client and server). And much more, including everything needed to compile and use PhysioToolkit software under MS-Windows.

Also, see How to install additional packages via Cygwin, How to install Ansible on Windows with Cygwin, and How to view installed packages in Cygwin on Windows.