Worked on the azurelinux-security/azurelinux repository to improve documentation clarity in preparation for the Azure Linux 4.0 release. Focused on updating the README by removing outdated Azure Linux 3.0 ISO links, the work aimed to reduce user confusion and align documentation with the current product roadmap. Leveraged Markdown for documentation updates and utilized version control best practices to ensure clean commit history and traceability. No code defects were addressed during this period, as the primary contribution centered on documentation hygiene. The changes helped clarify download options for users and reduced potential support queries related to legacy references in the documentation.