I'm happy to announce the release of Diesel 2.2. Diesel is a safe and performant query builder and ORM written in Rust. You can checkout the full release announcement here.
This release contains several new features and improves existing features. Diesel now provides a procedural macro attribute that infers the correct return type for your query. It's now possible to instrument connection implementations provided by diesel to perform logging and performance measurements. We added support for PostgreSQL's COPY FROM and COPY TO syntax which can be used to send and receive large amounts of data efficiently. Our dependencies wrapping the native database drivers support now all building the database driver as part of your cargo build. This enables us to distribute static precompiled versions of diesel-cli easily. Finally we worked with the Rust team to stabilize attributes to customize error messages emitted by the compiler. This is now used by diesel to improve the quality of certain otherwise hard to understand error messages.
This release wouldn't be possible without the support of our contributors and sponsors. If you want to support diesels development, consider joining the reviewer team, submitting PR's, help writing documentation or sponsor the maintainers.
I'm happy to answer questions about this release or in diesel in general.