The OnePlus 6T is not yet available for purchase, and it seems like the very first update is already rolling out. OxygenOS 9.0.4 is coming to the device, as confirmed by the source, and this update brings a number of improvements to the OnePlus 6T. Interestingly enough, this update is not listed on the company's official forums, and it's possible that's the case because the phone is not yet available for purchase. In any case, this is an indication that those of you who purchase the OnePlus 6T will have a new update waiting for you the moment you power on the device and connect to a Wi-Fi network. The changelog for this update is actually quite long, as we're looking at improvements / optimizations in several areas.
OxygenOS 9.0.4 improves 'Screen Unlock', which is the company's name for unlocking using the phone's in-display fingerprint scanner, it seems like OnePlus additionally optimized the feature before the device arrives into the hands of consumers. "Brand new navigation gestures" are also listed here, but those were included from the start. This update also optimizes power consumption of the OnePlus 6T, while it also brings Android security patch for November 2018. General bug fixes and improvements are also listed under 'System' changes in the changelog, while OnePlus also has two entries in the 'Camera' department. OxygenOS 9.0.4 brings some improvements to the phone's Nightscape feature, and the same goes for its 'Studio Lighting' feature which enhances face contour.
Background: The OnePlus 6T got announced a couple of days ago in New York, and the device will go on sale on November 6. The OnePlus 6T is actually quite similar to the OnePlus 6 in many ways, and it's basically an evolution of that handset. The OnePlus 6T does come with a more appealing design, due to the fact its notch is considerably smaller, while the phone also offers an in-display fingerprint scanner, which is something that the OnePlus 6 does not have. The OnePlus 6T and OnePlus 6 do share a number of internals, though, both phones are fueled by the Snapdragon 845, while both devices come in 6GB and 8GB RAM variants. The display on these two phones is essentially the same, the only difference is its size, as the OnePlus 6T's unit is larger. All three cameras on the OnePlus 6 and OnePlus 6T are identical, while both devices run Android 9 Pie, even though the OnePlus 6 did not from the get-go. They do not sport the same features at the moment, as the OnePlus 6T has newer software, but those changes will arrive to the OnePlus 6 soon, they already did via beta software.
Impact: The OnePlus 6T does have a lot to offer, but those of you who purchased the OnePlus 6 do not really have a lot of reasons to upgrade, unless you're really eager to trim down the notch. The OnePlus 6T does not have a 3.5mm headphone jack, unlike the OnePlus 6, while its fingerprint scanner seems to be a bit slower than the one on the OnePlus 6, despite the fact the company claims otherwise. The OnePlus 6 will also get all the camera features from the OnePlus 6T, and all its main software features as well.