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自作ライブラリのMethod/PropertyをDeprecatedにする。

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公開している自作ライブラリ中のMethodやPropertyをDeprecated(廃止予定)とするときは、宣言の末尾に __attribute__ ((deprecated)) を追加する。

@property (nonatomic) NSString *someString __attribute__ ((deprecated));
- (void)someMethod __attribute__ ((deprecated));

互換性確保のために他の箇所でDeprecatedなものを使用する場合、そのままだとWarningが出る。
これを抑制するためには、該当する箇所を

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"

#pragma clang diagnostic pop

で挟む。

参考

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