Recently a colleague brought me some current Kenya 5-10-20 shilling coins (KM#37, #35, #36). The relevant differences are not indicated adequately in our catalogue.
The 5 and 10 shillings of 2010 differ from the earlier years both in design (larger numeral, smaller coat of arms) and in metal content: they are attracted to a magnet while the others are not.
In our catalogue, as in NGC they are subdivided into #37.1/#37.2 and #35.1/#35.2, but according to the KM convention, different metal content would lead to new types: 37a, 35a.
The 20 shillings of 2010 differs from the earlier years in metal content only: it is attracted to a magnet while the others are not.
In our catalogue, it is subdivided into #36.1/#36.2, while NGC (online) does not have the 2010 coin listed yet. This, too, should be new type, 36a.

I can't make up catalogue numbers on my own, but I will add relevant details to the current pages.
5 shillings KM#37
10 shillings KM#35
20 shillings KM#36