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### Fixes & improvements

- Control Plane: The [Availability Checker](https://neon.com/docs/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.
  ![New sign in page design](https://neon.com/docs/changelog/sign_in_page.png)