Plain words
The site now says what each piece is. A stacked module is a v4 hook, the hook every pool is created with is the hook stack, a call that reverts or runs out of gas is a failed run, and a hook taken out of every pool is removed. The live view is Live swaps, and creating a pool is called Create a pool.
Contracts, functions and events keep their names on chain (Dam, publishLog, Crack), so integrations do not change. Old links redirect: /app/build to /app/create-pool, and the docs pages to their new names. The MCP tools are list_hooks, quote_stack, create_pool and hook_stats; the old tool names still answer.