Prisma 6.10.1 — Release Notes & Engineering Impact

Today, we are issuing a 6.10.1 patch release. ## Bug fixes In Prisma ORM version 6.10.0, we shipped a bug fix for Prisma Migrate that ensured we always gracefully closed PostgreSQL connections by sending the Terminate message and not just abruptly closing the TCP connection. This fix was incomplete because it didn't work on Windows, which is now fixed. We highly recommend upgrading to version 6.10.1 if you are using Windows. We also recommend upgrading to this version if you are currently using [local Prisma Postgres via the `prisma dev` command](https://www.prisma.io/docs/postgres/database/local-development) with an ORM version older than 6.10.x. ## Performance improvements The `queryCompiler` preview feature recently introduced a performance regression related to in-memory joins in TypeScript-based query execution (users who use the `queryCompiler` and the `relationJoins` preview features together were not affected, unless using `relationLoadStrategy: "query"`). This has now been fixed, leading to significant performance improvements: in our [Query Compiler benchmarks](https://github.com/prisma/query-compiler-benchmarks/), we are seeing up to 500x performance improvement compared to the previous implementation in the TypeScript-based query executor, or up to 10–20x performance improvement compared to the Rust-based Query Engine.  ## Other news Please see the [release notes for Prisma ORM 6.10.0](https://github.com/prisma/prisma/releases/tag/6.10.0) for other recent news and announcements.