> For the complete documentation index, see [llms.txt](https://wiki.zephyr-sim.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.zephyr-sim.com/patch-notes/zephyr/archive/v1.8.171.md).

# v1.8.171

## April 15, 2024 <a href="#id-1.8.129-august-15-2023" id="id-1.8.129-august-15-2023"></a>

*This update includes a new flyable drone, new UI features, and a multitude of bug fixes.*

**New Features ✨**

* New UI
  * Gimbal Crosshair
    * Added a Gimbal Crosshair as a togglable UI element. It is disabled by default and can be enabled from the Settings menu.
* New Flyable Drones
  * Skydio X2D
    * The rugged and portable X2D was designed with reconnaissance in mind. The impressive camera ensemble and 35 minutes of flight time make the X2D a desirable option for inspection and patrol tasks.

**Updated Features ⚙️**

* Scenario Updates
  * Updated the drone rosters of modules sim-wide

**Feature Previews 👓**

* Thermal Vision
  * Thermal Vision drone camera view is now available as a feature preview. Toggling thermal vision is mapped to Ctrl + T by default.

**Bug Fixes 🪲**

* Fixed an issue impacting controller mapping where attempting to remap certain commands would freeze the simulator
* Fixed an issue impacting Xbox One controller usage on Mac systems
* Fixed lighting in the Bridge Inspection scenario
* Fixed issue where controller UI could disappear
* Fixed an issue with the description for the Autel Evo II
* Fixed a lighting issue in all scenarios causing discrepancies between weather and non-weather
* Fixed missing collision on ceiling windows in Warehouse