Better notation of software versions

3-perception/vhar-system/2-method.tex

@@ -60,7 +60,7 @@ In addition, the pose and size of the virtual textures were defined on the virtu
 During the experiment, the system uses marker pose estimates to align the virtual models with their real world counterparts. %, according to the condition being tested.
 This allows to detect if a finger touches a virtual texture using a collision detection algorithm (Nvidia PhysX), and to show the virtual elements and textures in real-time, aligned with the \RE, using the considered \AR or \VR headset.
 
-In our implementation, the \VE is designed with Unity and the Mixed Reality Toolkit (MRTK)\footnoteurl{https://learn.microsoft.com/windows/mixed-reality/mrtk-unity}.
+In our implementation, the \VE is designed with Unity (v2021.1) and the Mixed Reality Toolkit (v2.7)\footnoteurl{https://learn.microsoft.com/windows/mixed-reality/mrtk-unity}.
 The visual rendering is achieved using the Microsoft HoloLens~2, an \OST-\AR headset with a \qtyproduct{43 x 29}{\degree} \FoV, a \qty{60}{\Hz} refresh rate, and self-localisation capabilities.
 A \VST-\AR or a \VR headset could have been used as well.