It's not necessary to support armv6 anymore. The only iPhones with armv6 were the original and the 3G, which was released more than four years ago. The 3GS and everything since has been armv7. Every iPad has been armv7.
The last version of iOS to support armv6 was 4.2.1, released almost two years ago.
The last version of iOS to support armv6 was 4.2.1, released almost two years ago.