How do I see what version of Stellar Core + Horizon I have deployed?

From the node dashboard in the app, after logging into your dashboard: under the header where it says “Stellar Horizon Mainnet Shared”, there are four fields:

“Horizon Watcher” | “Mainnet” | “stellar-core 13…4a” | “1.5.0-255b12ef9…168”

The last two are the versions of Core and Horizon, respectively, running on the shared node. You can hover over them to get the full display with hash.

Core is v 13.2.0

Horizon is 1.5.0