Go 1.27

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• The SIMD stuff is incredible. I have been having lots of fun with it. You can use LLMs as a scalar to SIMD transpiler, it works amazingly well.

  Sure a SIMD expert writing assembly can probably do a better job than an LLM using these new intrinsics, but it’s still massively faster.

  by tyho
• Struct literal changes while welcomed, have the issue of being a possible source of bugs, if there are overlapping fields,

  type Habitat struct { Burrow string }

  type Gopher struct { Name string Burrow string Habitat }

  It will not initialise what one expects, here it is a contrived example, however it may not be easy to spot in more complex source code.

  https://go.dev/play/p/dsY6tK5S8Ie

  Better generics and improved SIMD are nice additions as well.

  by pjmlp
• > Second, a key in a struct literal may now be any valid field selector for the struct type, allowing fields in nested or embedded structs to be initialized directly

  It's been a while since I've written more than anything trivial in golang, but this seems like a big deal to me. As in, I can define a struct that is consistent and reusable in other structs

  by olingern
• I love these release notes but I really wish they would add syntax highlighting to the Go blog. I'm always a little bit surprised/disappointed whenever I land on a go.dev link since I know the code will be just a little harder to visually parse than it needs to be.
  by xavdid
• > First, generic methods are now supported > Generic functions can now be used without explicit type arguments

  Great! This was an ergonomic code issue I hit when trying to create a universal handler/controller generic that could hydrate/populate function arguments (from a request body) without having an actual copy of the arguments: https://github.com/xeoncross/mid/blob/main/handler.go#L12

  by Xeoncross
• Brace for a wave of drive-by pull-requests swapping google/uuid [1] out for the now-standard uuid package [2].

  Kubernetes project will be the first one [3] I guarantee it.

  [1] https://pkg.go.dev/github.com/google/uuid

  [2] https://go.dev/pkg/uuid

  [3] https://github.com/kubernetes/kubernetes/blob/2220c3853a2402...

  [4] https://github.com/google/uuid/issues/221

  by guessmyname
• I love how proactive the crypto team is about post quantum. They released https://pkg.go.dev/crypto/mldsa. The lead maintainer Filippo Valsorda wrote a nice piece here[1] to urge the tech world to start deploying good enough versions of post quantum crypto.

  [1] https://words.filippo.io/crqc-timeline/

  by teabee89
• Not mentioned: Floating-point parsing and formatting now uses Russ Cox's uscale algorithm.

  https://research.swtch.com/fp

  https://github.com/golang/go/blob/go1.27.0/src/internal/strc...

  by e4m2