OxygenOS 4.5.13 OTA is rolling out with September security patch and bug fixes for OnePlus 5 users

OnePlus has released a new Over the Air (OTA) for its latest flagship, the OnePlus 5. The company announced the rollout of the latest version of its in-house operating system, OxygenOS 4.5.13 on OnePlus forums.
This new update comes two days after the previous update, OxygenOS 4.5.12 rollout to OnePlus 5 users. According to the forum post, the new OTA updates the Android security patch in the OxygenOS to September.

Apart from that, the latest update brings a number of bug fixes to the operating system along with better optimizations across the system. OnePlus claims that this new update improves the launch speed of the apps along with optimized adaptive brightness. We have added a complete changelog below so that users can see what changes OnePlus has made in the OTA update.

System

Customization of notification ringtone
Optimized adaptive brightness.
YouTube video lagging behind the audio issue has been fixed.
Fix for the issues of no 4G network in some region
Display issues of some UI elements fixed
OnePlus has confirmed that like all previous updates, the rollout one will also be incremental. This means the OS will reach a small percentage of users today, and the company will begin a broader roll-out over the next few days.

Source: http://www.firstpost.com/tech/news-analysis/oxygenos-4-5-13-ota-is-rolling-out-with-september-security-patch-and-bug-fixes-for-oneplus-5-users-4140671.html