Chrome Updating Secretly, Quietly?

Has anyone noticed that you may have different copies of chrome on your PC? After reading a post on Gizmodo, about the latest "release" of Chrome not being in Beta anymore, I decided to re-download it.

After a weird sequence of events, or non-events concerning Chrome download, I navigated to the file folder where the executable is stored.

This is where I found application versions. 

It seems that the first of these versions was made on 0.4.154.29, on 12/5/08. The second, 1.0.154.36, was on 12/12/08. The Chrome executable is from 12/9/08. 

If one browses these folders (the ones with the version numbers) one will find separate setup executable and what I assume to be a version of Chrome packaged (Chrome.7z).

So if it is true, that Google is pushing more current versions of Chrome to users without them even knowing it, is that a bad thing to you? There can be a difference of opinion on this.

I tend to be of the mindset, for Chrome only right now, that this is a good thing. The user need not worry about finding another version, or upgrading whenever Google sends out their "we fixed it" e-mail. Google can push a new version to the masses without the slightest hint of anyone knowing. Though it would be nice if they told us, formally, that they had changes for Chrome coming.

My only concern would be that an application is re-building another application on your computer without your knowledge. Now while Google isn't a bad group of pirates, there are those who are. If an OS doesn't know that a new application is being built quietly and silently, without user request, to me that could leave some doors unlocked security wise.

Again, for Google to do this is to me, not an issue. It is the possibility of some malicious persons doing it as well. 

So knowing now, what you know, do you feel any different about Chrome or Google?