As of the compilation date of 5.1.15, Nequi incorporated the latest Android security patches (up to September-October of its release year). This means better protection against known vulnerabilities, including man-in-the-middle attacks on public Wi-Fi.
: Legacy versions do not receive modern security patches, leaving vulnerabilities unpatched. nequi colombia 5.1.15 apk
If version 5.1.15 works flawlessly for you and you don’t need new features, you can keep it. But for financial security, staying within 6-12 months of the latest version is wise. As of the compilation date of 5