[xsl] SaxonB 8.9 changes sort order

[M 1879 <m1879@xxxxxxxxxxxxx>]

I am baffled because a newer version of SaxonB (8.9J), has changed
the alphabetical sort order. I am alphabetizing a list of names that
can start with capital or lowercase letters. With SaxonB 8.7.1J, the
names sort without regard to capitalization of the first letter, as
in this example:

acCookie
acName
acSystemError
addressList
addrExt
addrList
ARP
ATM
attachedRouters
authSelect

But with the single change of using SaxonB 8.9J, using the same XSLT,
it sorts capitals first, and then tacks on the lowercase sort. Like this:

ARP
ATM
acCookie
acName
acSystemError
addrExt
addrList
addressList
attachedRouters
authSelect

Is this a bug? Or just the ups and downs of life?

Thanks
Mark Giffin