It must have been at least a few months after launch because I spent quite a bit of time testing out when it launched and I don’t remember it from back then. I was surprised to find it last night when I was tinkering. I was wondering if it was inspired by Vista’s previous version feature of if maybe it came from one of the acquisitions they made over the last year or so. Either way it’s a nice feature.

You made me curious so I went looking around for screenshots of the service when it launched. Unfortunately we didn’t have a screenshot of the document editing page at that time, but Techcrunch did in their article:
[techcrunch.com]

Looks like there was a Revisions tab there.

I was just playing with Google Docs last night when I noticed the revisions tab. It was not there the last time I had used it a few months ago.

I think it has been around almost since the start, but I could be wrong. It seems like I remember seeing it when they launched Google Docs.

Google docs is offering some unique features.

While this feature is unique for an online service, it’s not unique in the sense that there are many desktop based applications that do the same thing, and actually do it better. Given the fact that Google Docs is web-based though, this is a nice feature to have.