Rust 1.70.0

Rust is een programmeertaal bedacht door Graydon Hoare en oorspronkelijk ontwikkeld door Mozilla. Het is deels geïnspireerd op de programmeertaal C, maar kent syntactische en semantische verschillen. Het focust op veiligheid en beoogt moderne computersystemen efficiënter te benutten. Het wordt ingezet door onder andere Cloudflare, OVH, Mozilla, Deliveroo, Coursera, AppSignal en Threema. Versie 1.70.0 is begin deze maand uitgebracht met de volgende aankondiging: Announcing Rust 1.70.0 The Rust team is happy to announce a new version of Rust, 1.70.0. Rust is a programming language empowering everyone to build reliable and efficient software. If you have a previous version of Rust installed via rustup, you can get 1.70.0 with: rustup update stable If you don’t have it already, you can get rustup from the appropriate page on our website, and check out the detailed release notes for 1.70.0 on GitHub. If you’d like to help us out by testing future releases, you might consider updating locally to use the beta channel (rustup default beta) or the nightly channel (rustup default nightly). Please report any bugs you might come across! What’s in 1.70.0 stable Sparse by default for Cargo’s “sparse” protocol is now enabled by default for reading the index from This feature was previously stabilized with Rust 1.68.0, but still required configuration to use that with The announced plan was to make that the default in 1.70.0, and here it is! You should see substantially improved performance when fetching information from the index. Users behind a restrictive firewall will need to ensure that access to is available. If for some reason you need to stay with the previous default of using the git index hosted by GitHub, the registries.crates-io.protocol config setting can be used to change the default. One side-effect to note about changing the access method is that this also changes the path to the crate cache, so dependencies will be downloaded anew. Once you have fully committed to using the sparse protocol, you may want to clear out the old $CARGO_HOME/registry/*/* paths. OnceCell and OnceLock Two new types have been stabilized for one-time initialization of shared data, OnceCell and its thread-safe counterpart OnceLock. These can be used anywhere that immediate construction is not wanted, and perhaps not even possible like non-const data in global variables.


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