https://wccftech.com/samsung-galaxy-s9-gets-june-security-patch-on-unlocked-and-carrier-units/

After its release earlier this year, the carrier-unlocked variants of the Samsung Galaxy S9 in the US haven’t received a single security update. Their carrier-locked counterparts didn’t fare better, either, with most of them receiving delayed or no updates. On the other hand, international variants of the device have been receiving regular updates, which makes us wonder, why the delay for the US variants in particular.

Thankfully, the carrier-unlocked Galaxy S9 and S9+ have begun receiving the June security update, which was first spotted by Droid-Life. Additionally, some users on the Verizon and T-Mobile network also have received the June security patch, according to the same report. That leaves only AT&T and Sprint, who should hopefully roll it out soon. It is also worth noting that AT&T is yet to roll out a single OTA for the flagships, ever since its release three months ago.