Howdy folks! In working on Tirade I stumbled upon SqNumberParser and its history: http://bugs.squeak.org/view.php?id=3512 ...it was added to the image in 3.9 but not hooked into Scanner - Scanned still uses Number class>>readFrom:. Now... In Tirade I can use whichever - but using SqNumberParser makes it more correct, and quite faster - although "less portable" since I would depend on it. I will now make Tirade use SqNumberParser *if present* in the image, otherwise fall back on Number class>>readFrom:. This opens up some slight potential incompatibility issues, but whatever. Question: Is there anything stopping 3.9+ including Pharo to start using SqNumberParser from Scanner>>xDigit? And oh, the class name is not so good IMHO, why the Sq prefix? And yeah, class var not used in SqNumberParser: BelllerophonBase10 :) regards, Göran