Link to main blog disappeared in BP-Corporate 1.1.6

I have upgraded to BP-Corporate 1.1.6 and then 1.1.7 after upgrading to BP 1.2. Everything else seems to be working but I have lost the link to the main blog.

I can create and navigate to blog posts, but there is no blog front page. There used to be a link to it in the BP-Corporate navigation. manually navigating to /blog/ gives me a 404 error.

Is this just the way the theme works now, or is something broken for me?

Of course, I can create a page and a page template to display blog posts but I'd rather do as little theme customization as possible, to make future updates easier. Thanks.