C34S-X4 firmware upgrade

I use IP Camera C34S-X4 , 2 units , the current firmware is 48.63.204.104 (as attached file).            Is it latest firmware ?       If No , Please give me the latest firmware file , I would like to upgrade manually.

Dear Sir/Madam,
Thanks for your message, the latest firmware version is 105 version,
the attachment is the zip firmware file, plesae check it, make sure to unzip it before upgrading.