🥇 Remova dispatch_release quando iOS> = 6 || OSX> = 1080

Chamar dispatch_release é proibido pelo ARC nas novas versões do iOS e OSX.

Esta macro de pré-processador pode ajudar:

#define YourDispatchQueueRelease(q) (dispatch_release(q))
#if TARGET_OS_IPHONE
    #if __IPHONE_OS_VERSION_MIN_REQUIRED >= 60000
        #define YourDispatchQueueRelease(q)
    #endif
#else
    #if MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
        #define YourDispatchQueueRelease(q)
    #endif
#endif

Referências:
https://github.com/ccgus/fmdb/commit/aef763eeb64e6fa654e7d121f1df4c
https://github.com/magicalpanda/MagicalRecord/pull/260

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