Zeus, the man who is known to follow the Google Image Search index and report back on any changes, is updating us on the state of that index. In a WebmasterWorld thread, Zeus said there is a new update that just took place. He said he is happy overall with the changes, because he noticed more images added to the results when the searchsearch filter is set to on. He said this update took place on April 28, 2010.
I have noticed search with "SafeSearch moderate on" has once again added more images to that filter which before was not there, which is of cause a good thing for the search quality, so once again nothing to complain about, which has also been the case now for some time, so it looks like Google image is finally stable.
He also added an example of what he saw on one of his sites:
A site of mine have lost all images , but 2 in safe search filter on, thats a little weird be cause nothing was done to the site or links added, so now im wondering if a ad could be the reason, I will have a look, I think such things are always interesting to solve and special since last year when you dont have to wait 3 Month for a image update.
The last reported shift in Google Images before this was on February 16th.
Forum discussion at WebmasterWorld.