Alerts For New Results
When doing a search, if there are new results that have happened after you initially did your search, you’ll see a message alerting you to the new information:
In the screenshot above, you can see the “1 more recent post” link. Select that, if it shows, and your search results will be updated. The exact number of posts will vary by search and activity, of course.
If you’re searching in “Most Recent” mode, then the results will automatically update
Hashtags Gain More Search Support
As for hashtags, if you add these to a post, the hashtag should turn into a link when it appears in search results:
Clicking on that link will run a search for that hashtag:
Neither of these features is working for me yet, but Google says they’re rolling out for everyone in the near future. So if you don’t see them yourself, hang in there.
Here’s a short video of the features from Google: