These apply to the corrected printings. Springer has gone to a
Print on Demand (POD) service so there is no longer a numbered printing system to help
identify printings.
The easiest way to tell if you have a corrected printing is to look at Figure 1.1 on page 4.
If the Johnson & Johnson time plot is a line with dots, then you have the corrected printing.
If you just see a line without dots, you have an uncorrected printing and you can find the errata
for those printings here: Old Errata
Page 356, Property P6.6: Remove the exogenous variables Γut from the observation equation, (6.105),
and add them to the state equation, (6.104), as follows:
xt+1 = ... + Υut+1
where Υ = [Γ 0 0 ... 0]' is pm × r.
Thanks to Professor Doug Wiens, University of Alberta, for pointing out this blooper.