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the default in version 5 increased from 4 MB to 32 MB, typically improving compression ratio. For dictionaries larger than 4 GB, the size can be specified if it is unequal to a power of 2. Thus, there are no restrictions to the range 4, 8, 16, 32, 64, allowing 5 GB or 22 GB to be chosen at will. Archives with dictionaries larger than 4 GB can only be extracted by WinRAR 7.0 or newer. AES encryption, when used, is in CBC mode and

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