updated trailer release notes

Documentation/User Manual Source/VECTOTrailer_ReleaseNotes.md

 ![](https://notes.oss-labs.eu/uploads/9b824ff4-c385-4b59-8cf0-c594693822a4.JPG)
 
 # VECTO Trailer release notes
-## August 2023 - VECTOTrailer-0.9.0.3143
+## September 2023 - VECTOTrailer-0.9.0.3168
 This is the first beta release of the tool produced by the JRC. It serves mainly as a pilot to the process, nevertheless incorporating new features which are essential to the completeness of the tool. Further releases will follow in September and October of 2023.
 
 Here is what is new in this VECTO Trailer release:
@@ -9,6 +9,9 @@ Here is what is new in this VECTO Trailer release:
 - [Issue #1](https://code.europa.eu/vecto/vecto-trailer/-/issues/1): Add support for Tyre component data in schema version 2.5
   - A new xml schema for tyre XMLs has been added to the official VECTO version. The new schema is now supported in the trailer tool as well.
 
+- [Issue #12](https://code.europa.eu/vecto/vecto-trailer/-/issues/12): Remove tyre fuel efficiency label calculation in VECTO Trailer
+  - If the tyre efficiency label is missing in the input, it will be not calculated for reporting.
+
 - [Issue #10](https://code.europa.eu/vecto/vecto-trailer/-/issues/10): Update standard values for aero devices
   - The standard values for aero devices have been updated after their final definition for all trailers.
   - The same is true for volume oriented trailers.