Yes, you are correct, Steven. This functionality does not exist prior to the latest version (2016.3.914). The new feature is also in the latest release notes: "Restrict typed decimal digits".
It seems when I changed the Kendo version in the dojo I only did it for the CSS and somehow overlooked the script reference. I apologize for misleading you on that.
I'm afraid you will need to upgrade if this feature is important to you.
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