This is not limited to this particular algorithm update & your site, but I'd like to mention it regardless:
I can assure you that our algorithms are not one-way streets. As a website is updated, recrawled, reindexed, and with that, the site's signals reassessed, our algorithms will take those changes into account and treat the website accordingly. There are countless examples of that happening here in the forums, I see them regularly.
That process is usually not something that takes place overnight after a webmaster has uploaded a fresh copy of the code for the website. For example, it takes time for us to recrawl the pages, the bigger the site, the longer it will take. The better a site is structured (less duplicate content, no infinite URL spaces, etc), the faster we'll be able to recrawl parts of a site and take that content into consideration. Sometimes, even after recrawling parts of a site, our algorithms will need a bit of time to confirm that the site has really changed for good.
All of this can and will take time. Personally, I'd recommend not waiting to see if a single, small change will make a difference, our algorithms rarely have a "one-track-mind," they take many factors into account. Because of that, I'd recommend always continuing to work on your site, to improve it, expand it, to get feedback from your users and to take action on that feedback (happy users come back and recommend your site to their friends!). Even when you start to see changes, don't stop there -- make your site into the best resource of it's kind.