# MotherDuck Documentation - About MotherDuck > Scoped MotherDuck documentation index for About MotherDuck. Use this before the root index when the user's question is clearly about this area. - [Full scoped context](https://motherduck.com/docs/about-motherduck/llms-full.txt): Complete Markdown content for About MotherDuck. - [Root documentation index](https://motherduck.com/docs/llms.txt): All MotherDuck documentation sections. ## Pages - [Pricing model](https://motherduck.com/docs/about-motherduck/billing/pricing): Details of MotherDuck's pricing model. - Sections: MotherDuck pricing model, Incentive programs: - [Release notes](https://motherduck.com/docs/about-motherduck/release-notes): Latest updates, new features, and improvements to MotherDuck. - Sections: June 2, 2026, May 22, 2026, May 15, 2026, May 7, 2026, May 1, 2026, April 22, 2026... - [Manage billing](https://motherduck.com/docs/about-motherduck/billing/managing-billing): Learn how to manage your MotherDuck spend, choose plans, monitor usage, and view invoices. - Sections: Choosing your billing plan, Monitoring usage, Viewing your invoice - [Release notes archive](https://motherduck.com/docs/about-motherduck/release-notes-archive): Archived MotherDuck release notes. - Sections: May 1, 2025, April 23, 2025, April 22, 2025, April 17, 2025, April 10, 2025, April 3, 2025... - [Tag workloads with custom user agents](https://motherduck.com/docs/about-motherduck/billing/tag-workloads-with-custom-user-agents): Add workload tags with custom_user_agent and use QUERY_HISTORY to group activity by workload, tenant, or pipeline. - Sections: 1. choose a tagging convention, 2. understand what QUERY_HISTORY stores, 3. set custom_user_agent, 4. inspect recent tagged queries, 5. group tagged activity by workload, 6. use tagged activity for internal allocation - [Duckling sizes](https://motherduck.com/docs/about-motherduck/billing/duckling-sizes): Learn about MotherDuck Duckling (compute instance) sizes and their optimal use cases. - Sections: Duckling sizes, Configuring the cooldown period, Changing Duckling sizes - [Feature stages](https://motherduck.com/docs/about-motherduck/feature-stages): Understanding MotherDuck's feature lifecycle stages — Preview and Generally Available. - Sections: Preview, Generally Available (GA) - [Legal](https://motherduck.com/docs/about-motherduck/legal): Terms of service, privacy policy, and other legal documents for MotherDuck. - Sections: Product Terms of Service - [About MotherDuck](https://motherduck.com/docs/about-motherduck): About MotherDuck - [Billing](https://motherduck.com/docs/about-motherduck/billing): Learn more about MotherDuck's pricing model and how to manage billing.