# Changelog 2023 08 28

### Fixes & improvements

- Control Plane: The [Availability Checker](/guides/postgres-reference-glossary#availability-checker) now uses the smallest Neon compute size (.25 Compute Units) to verify that a project's computes can start and read and write data. This change allows the Availability Checker to use pre-started computes more often, which shortens availability check operation time and reduces the impact of availability checks on infrastructure and compute costs.
- UI: Improved the **Pro Plan Cost Estimator** for Neon Free Tier users. To ensure accuracy, the tool now displays cost estimates only after a month of project usage. This change prevents the display of inaccurate cost estimates for new accounts. Neon Free Tier users can access the **Pro Plan Cost Estimator** by visiting the **Billing** page in the Neon Console.
- UI: Implemented a new and improved design for the Neon Sign-in page. <img src="../img/site-assets/neon.com/docs/changelog/sign_in_page.png" alt="New sign in page design">

## Related pages

- [AI tools for Agents](./ai-agents-on-neon-index.md)
- [APIs & SDKs](./apis-sdks-index.md)
- [Changelog](../changelog.md)
- [Integrating with Neon](./building-on-neon-index.md)
- [Lakebase Postgres](./postgres-index.md)
- [Managed Better Auth](./auth-index.md)
- [More](./more-index.md)
- [Neon AI Gateway](./ai-gateway-index.md)
- [Neon community](./community-index.md)
- [Neon documentation](./neon-docs-index.md)

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