Your old toolbars are still there after you upgrade, they just get turned off initially to encourage you to look at the new ones, and for people who had not customized the old ones (who would then be stuck on them forever if we didn't switch them).
You can turn them right back on again if you wish, as the FAQ linked above explains.
The installer also shows a message about this when it happens, but you probably clicked OK instinctively without reading it out of eagerness to try the new version. 