.dmg (macOS) file. Install: Run the installer. Note: When installing older versions on modern systems (like Windows 11), you might see UAC warnings, but the installation generally proceeds normally. IONOS +1 Important Considerations Security: Older software versions contain known security vulnerabilities. Only use old XAMPP versions for local development, not for public-facing servers. Alternatives: If you cannot find a specific older version, or need better flexibility for switching PHP versions, consider using tools like

Apache Friends (the creators of XAMPP) does not always make older versions prominent on their main download page. To find the specific version you need, you need to visit their .