I had purchased ToA and Tortle on Steam and did update to go up to v3.3.3 from v3.3.2. Everything updated, including the steam purchased content, but the two new purchases didn't show up.

Like some others, I had to go into settings and Refresh Steam Purchases before they would be picked up.

In the old system (before linking steam), new purchases were picked up automatically.

Would be nice if that worked again.