def __update_common(self):
        """Updates done by both v23 and v24 update"""

        if "TCON" in self:
            # Get rid of "(xx)Foobr" format.
            self["TCON"].genres = self["TCON"].genres

        if self.version < self._V23:
            # ID3v2.2 PIC frames are slightly different.
            pics = self.getall("APIC")
            mimes = {"PNG": "image/png", "JPG": "image/jpeg"}
            self.delall("APIC")
            for pic in pics:
                newpic = APIC(
                    encoding=pic.encoding, mime=mimes.get(pic.mime, pic.mime),
                    type=pic.type, desc=pic.desc, data=pic.data)
                self.add(newpic)

            # ID3v2.2 LNK frames are just way too different to upgrade.
            self.delall("LINK")
Updates done by both v23 and v24 update