> ## Documentation Index
> Fetch the complete documentation index at: https://docs.semicola.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

> Product changes in the Semicola app, the storefront agent and the docs.

Developer-facing changes to the MCP endpoint are listed in
[Changes and compatibility](/v3/changelog).

<Update label="2026-09-24" description="First public docs">
  * **Buying**: one brief to every eligible seller, streamed proposals with refinement, staged media
    buys and a confirmed launch. See [Buy media](/buy/overview). - **Selling**: storefronts with a
    hosted storefront agent, AI Business Rules with two approval gates, the demand inbox and the
    proposal pass. See [Sell media](/sell/overview). - **Agents**: the v3 MCP endpoint, with widgets
    that render in the Semicola app and in MCP Apps hosts such as Claude and ChatGPT. See [Build with
    Semicola](/v3/overview).
</Update>