Ultra Weather XP, the developer of the weather plugin with the same name, has admitted development for X-Plane 11.50 has been difficult, but also served up some new screenshots of version 2.6 at the same time.

Released about one-and-a-half months ago, the X-Plane 11.50 public beta contains the long-awaited Vulkan and Metal rendering APIs, a significant step up from OpenGL that X-Plane has used for around two decades.

Although the OpenGL API will still be supported for the remainder of X-Plane 11, it seems as though Ultra Weather XP is not finding it easy to accommodate their plugin in the environment, as Abdullah Almuntassir‎ explains.

"It's been a very hard time struggling with the new system of X-Plane 11.50 Beta's versions, we still working hard to maintain the best result for you as well as compatibility with the new X-Plane," he wrote in their Facebook group.

"I would like to share with you some of the screenshots of the new skies in the upcoming v2.6, viewing difference of colors at different times, each shot has the selected settings in the down right corner."

Almuntassir did not state exactly what they are finding difficult, though it is likely they are trying to have the plugin sing in harmony with Vulkan.

These screenshots are eight of the thirty-six uploaded yesterday, showing three different times with all twelve sky textures in action.

The sky texture preset can be seen in the bottom-right as Almuntassir‎ mentioned earlier, and some of the results are evident above and below.

Back in April, about a week after the release of the X-Plane 11.50 beta, Ultra Weather XP said version 2.6 was approximately 90% complete, and also showed off a new UI for the first time.

But we must rewind to August of last year for the first taste of 2.6, which started with improved sky colours.

This followed on from an earlier announcement of version 3, which is to contain volumetric clouds. Although the developer explicitly stated the first preview was in very early development, the negativity fed back by the community is the likely reason further progress of version 3 has not been published to date.

Nonetheless, UWXP's progress is available to follow in their Facebook group and through their page.