The older updates are available, if you're on a PC, check the right side of the screen—more posts are listed there, with older updates underneath. Look carefully, and you should spot them. If you didn't find it still
first, you might want to get your eyes checked.
second, I couldn’t find version 0.80.11, but here’s a link to version 0.80.2 as an alternative. You can also browse the updates page for all releases.