如何更新ios6企业应用程序

BOOL updateAvailable = NO;
NSDictionary *updateDictionary = [NSDictionary DictionaryWithContentsOfURL:
                                  [NSURL URLWithString:@"http://www.example.com/pathToPlist"]];

if(updateDictionary)
{
    NSArray *items = [updateDictionary objectForKey:@"items"];
    NSDictionary *itemDict = [items lastObject];

    NSDictionary *MetaData = [itemDict objectForKey:@"Metadata"];
    NSString *newversion = [MetaData valueForKey:@"bundle-version"];
    NSString *currentversion = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundLeversion"];

    updateAvailable = [newversion compare:currentversion options:NSNumericSearch] == NSorderedDescending;
}

一旦检测到更新可用,导航到用户下载URL

并且它将安装在现有版本上,使所有数据保持一致,甚至如果您设置自动迁移并进行更改则升级CoreData数据库.