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							|  |  |  | //  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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							|  |  |  | NS_ASSUME_NONNULL_BEGIN | 
					
						
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							|  |  |  | #define RECENT_CALLS_DEFAULT_KEY @"RPRecentCallsDefaultKey"
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							|  |  |  | typedef void (^VersionMigrationCompletion)(BOOL success, BOOL requiresConfigurationSync); | 
					
						
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							|  |  |  | @interface VersionMigrations : NSObject | 
					
						
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							|  |  |  | + (void)performUpdateCheckWithCompletion:(VersionMigrationCompletion)completion; | 
					
						
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							|  |  |  | + (BOOL)isVersion:(NSString *)thisVersionString | 
					
						
							|  |  |  |           atLeast:(NSString *)openLowerBoundVersionString | 
					
						
							|  |  |  |       andLessThan:(NSString *)closedUpperBoundVersionString; | 
					
						
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							|  |  |  | + (BOOL)isVersion:(NSString *)thisVersionString atLeast:(NSString *)thatVersionString; | 
					
						
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							|  |  |  | + (BOOL)isVersion:(NSString *)thisVersionString lessThan:(NSString *)thatVersionString; | 
					
						
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							|  |  |  | @end | 
					
						
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							|  |  |  | NS_ASSUME_NONNULL_END |