Released as a maintenance update, version 2.1.2 focused on refining the substantial changes introduced in the 2.1 series:
Versions below 2.1.7 are known to be full of unpatched security holes. Nulled versions often include malicious backdoors or "shells" added by the crackers, which can lead to complete server takeovers.
Most reputable web hosts prohibit the use of nulled software in their Terms of Service, which can lead to immediate account suspension. Modern Alternatives