Does Knapsack provide notifications to users upon system changes or releases?

Since Knapsack tightly integrates with your version control system, each version (latest or beta) of your design system package would be a git commit tagged with the version number - therefore triggering any webhook events that the git host in use is able to provide. 

Here's the data GitHub, our suggested standard for git hosting, would send out in a "release" webhook event: https://docs.github.com/en/developers/webhooks-and-events/webhook-events-and-payloads#release