I said that the spec 5, which was already ready at the end of October but was not used, was developed further during the winter and is therefore a spec 5.XX at the moment. This is now called the spec 1 of 2020.
The spec 5.0 was already a strong improvement over the spec 4, and the spec 1 from 2020 (spec 5.XX) is therefore another improvement.
This can therefore never be a small improvement compared to the end of last year, when they were driving the spec 4.