Pfsense 2.5.1 Download Iso //free\\
Getting a specific, older version of pfSense like requires a bit of a workaround since the official download page usually only features the latest stable release (currently 2.7.x).
Release 2.5.1 was notable for refining the transition to FreeBSD 12.2-STABLE and introducing several security and performance enhancements: Pfsense 2.5.1 Download Iso
pfSense Plus 22.01 and pfSense CE 2.5.2 are the current stable versions, as version 2.5.1 has been superseded to address critical security vulnerabilities and performance bugs. While you can find archived versions, it is highly recommended to use the latest release for network security. Where to Download pfSense 2.5.1 / Latest CE Getting a specific, older version of pfSense like
2. Official Download Sources
The only recommended source to avoid tampered or malicious images is the official Netgate portal: Getting a specific