normalization differences from ICU 1.6 and ICU 2.6

[Michael T M. <mic...@us...>]

I know I should be using a newer version of ICU :)

Anyway when normalizing some data with ICU 1.6 (form 3 NFC) for instance

x'11491167' the result is x'5454'

in ICU 2.6 (form 4 NFC) the data doesn't change and remains x'11491167'

So the question is, what differences are there between the normalization
functions from 1.6 and 2.6 or currently 2.8 that affect how the data
decompose and composes?

Also are the results I'm getting from 1.6 for this particular data an
error, or is this simply how it works in 1.6?

Thanks,

Mike Myers