Umbraco CMS - Update content on several environments

Question

I have problem in finding the best solution for synchronizing content between several Umbraco (Verison: 4.7.2) instances.
So the situation is: I have three environments (dev, pre-production, production) with their own separate databases and Umbraco installed on them. Currently if I updating content on my dev instance I need to repeat this procedure on other two. Content can be updated on all of these environments. So I need to have some tool which will synchronize content on all others environments, immediately after it was updated. I found couple of out-of-box solutions such as Umbraco Courier and uSync. I have problems with both of them.
The first one is commercial; the second is working only with Umbraco version 4.10.x. I can’t pay for this, and at the same time it’s rather hard for me to upgrade Umbraco on all of these environments. Currently I need to upgrade only content.
I’m kind of wary of developing something which will work directly with databases, but that’s the only solution I can see now.
So can you please advise me something on this?

Answer 1

uSync is open source, so it's possible that you could fork it and make a version that would work with older versions of Umbraco? There is a forum post here that implies that it can be done reasonably easily.