# Changelog 2022 08 15

### Fixes & improvements

- Control Plane: Set `max_replication_write_lag` to `15 MB` to tune the backpressure mechanism and improve PostgresSQL responsiveness under load.
- Control Plane: Improved the ability to investigate performance issues by collecting and saving more detailed compute node startup time metrics.
- UI: The Neon SQL Editor now maintains a history of previously executed queries and permits saving queries. For more information about these capabilities, see [Query with Neon's SQL Editor](/guides/postgres-get-started-query-with-neon-sql-editor).
- UI: Added token-based authorization to [Neon's public API](/guides/ai-agents-on-neon-reference-api).
- UI: Changed the display status of operations waiting in the queue from `In progress` to `Scheduling`.
- UI: Disabled controls that incorrectly remained enabled while the Neon project was in a transitive state.
- UI: Fixed incorrect encoding when switching between code samples in the **Connection Details** widget on the project Dashboard, and added descriptions to connection string examples.
- UI: Fixed various typos and errors.

## Related pages

- [Add users and authentication](./auth-index.md)
- [AI tools for Agents](./ai-agents-on-neon-index.md)
- [APIs & SDKs](./apis-sdks-index.md)
- [Changelog](../changelog.md)
- [Explore the full platform: functions, object storage, AI Gateway, and more](./neon-docs-index.md)
- [Integrating with Neon](./building-on-neon-index.md)
- [Lakebase Postgres](./postgres-index.md)
- [More](./more-index.md)
- [Neon AI Gateway](./ai-gateway-index.md)
- [Neon community](./community-index.md)

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