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X-Plane 12 “C-Check Update” Version 12.4.0 Officially Released

Giuseppe Nelvaby Giuseppe Nelva
February 19, 2026
in News
Reading Time: 2 mins read
X-Plane C-Check Update
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Today, Laminar Research officially released version 12.4.0 of X-Plane 12, dubbed the “C-Check Update.”

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While the update (which has been in beta for a few weeks) introduces a large variety of smaller changes and tweaks to X-Plane 12, there are a few that deserve their own mentions, starting with the introduction of Multi-threaded scenery processing.

This doesn’t mean full multithreading, but multiple CPU cores are now used to prepare the scenery for rendering, which can lead to non-irrelevant performance improvement on certain PC configurations and scenery-intensive situations.

Those who are already GPU-limited or have a weaker CPU will see less of an improvement.

Native Tobii Eye Tracker 5 is also now part of the sim, although only on Windows.

ACARS support via the third MCDU lets you request text-based weather information, ATIS, and pre-departure clearance when on VATSIM or using the sim’s ATC system.

Bilbao Airport (LEBB) has been added as a new custom airport with plenty of details to enjoy, while the Airbus A330-300 and Cirrus SR22 have been extensively updated.

Many other aircraft also indirectly received changes due to the big injection of new features and improvements to the  X430/530 and X1000 avionics that they use.

If you want to learn all the ins and outs of the update, there is plenty more, and you can check out the X-Plane 12.4.0 official release notes.

X-Plane 12 is currently available for PC (including Windows, Linux, and MacOS).

If you’d like to read more flight simulation news, you can find plenty in our latest roundup article from yesterday.

If you want to go further back, we have a handy overview video of the major flight simulation news in the past week. You can watch it below. As usual, leaving a like and a comment and subscribing to our growing YouTube channel is extremely helpful.

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