ExternalAccessory iOS 10.3 to 11.0 API Differences

EASession.h
Modified -[EASession initWithAccessory:forProtocol:]
Declaration
From- (nonnull instancetype)initWithAccessory:(nonnull EAAccessory *)accessory forProtocol:(nonnull NSString *)protocolString
To- (nullable instancetype)initWithAccessory:(nonnull EAAccessory *)accessory forProtocol:(nonnull NSString *)protocolString

Modified EASession.accessory
Declaration
From@property (nonatomic, readonly, nonnull) EAAccessory *accessory
To@property (nonatomic, readonly, nullable) EAAccessory *accessory

Modified EASession.protocolString
Declaration
From@property (nonatomic, readonly, nonnull) NSString *protocolString
To@property (nonatomic, readonly, nullable) NSString *protocolString