You might wonder why someone would look for a 2009-era ISO in the 2020s. There are several professional reasons:
Released in late 2009, MATLAB R2009b (Version 7.9) was a landmark update that focused heavily on enhancing the user experience and workspace efficiency. It is often remembered for introducing "power user" features like customizable keyboard shortcuts and a redesigned file browser. Key Desktop Enhancements Customizable Keyboard Shortcuts
MATLAB Release 2009b introduced several new features and enhancements, including:
R2009b was designed for contemporary hardware and operating systems of its time: Operating Systems
The ritual begins. The tray of the PC slides out with a mechanical wheeze. Elias drops the ISO-burned disc into place. Spin. Whirrr. Silence.