Samsung has started sending out the update to Android 8.0 Oreo to the Galaxy C7 from 2016, specifically the model that was sold primarily in China - SM-C7000. Additionally, a new variant of the Galaxy C5 Pro is tasting Oreo too - we're talking about the one bearing the model number SM-C5018. On the other hand, the Oreo release went out to the SM-C5010 version of the C5 Pro on August 5. If you own a Galaxy C7 (SM-C7000), the new software version is C7000ZCU3CRH3, while for the C5 Pro (SM-C5018) it's C5018ZMU1CRH2. Interestingly, the C7's update packs the August security fixes (the latest...
Source: https://www.gsmarena.com/samsung_galaxy_c7_receives_android_80_oreo_update-news-32981.php