COVID-19 new variant: C.1.2 detected in South Africa may be more infectious, evade vaccine protection: Study
As per the study, C.1.2 lineage has a mutation rate of about 41.8 mutations per year. It is about twice as fast as the current global mutation rate of the other variants.
source https://www.jagranjosh.com/current-affairs/new-variant-c12-detected-in-south-africa-may-be-more-infectious-evade-vaccine-protection-study-1630497060-1