pkg go/build/constraint, type AndExpr struct, Y Expr
pkg go/build/constraint, type Expr interface, Eval(func(string) bool) bool
pkg go/build/constraint, type Expr interface, String() string
pkg go/build/constraint, type Expr interface, unexported methods
pkg go/build/constraint, type NotExpr struct
pkg go/build/constraint, type NotExpr struct, X Expr
pkg go/build/constraint, type OrExpr struct

- The RuntimeClass scheduler can now simplify steering Linux or Windows pods to appropriate nodes
- All Windows nodes now get the new label `node.kubernetes.io/windows-build` that reflects the Windows major, minor, and build number that are needed to match compatibility between Windows containers and Windows worker nodes.


## Deprecations and Removals

- Kubernetes is now built using go1.15.2
  - build: Update to k/repo-infra@v0.1.1 (supports go1.15.2)
  - build: Use go-runner:buster-v2.0.1 (built using go1.15.1)
  - bazel: Replace --features with Starlark build settings flag
  - hack/lib/util.sh: some bash cleanups
    
    - switched one spot to use kube::logging

- Kubernetes is now built with Go `1.19.5` ([#115010](https://github.com/kubernetes/kubernetes/pull/115010), [@cpanato](https://github.com/cpanato))
- Kubernetes is now built with go 1.20 ([#114502](https://github.com/kubernetes/kubernetes/pull/114502), [@cpanato](https://github.com/cpanato)) [SIG Release and Testing]

        * [Build simple API service with Python FastAPI — Part 1](https://dev.to/cuongld2/build-simple-api-service-with-python-fastapi-part-1-581o) by [cuongld2](https://dev.to/cuongld2).
        * [FastAPI + Zeit.co = 🚀](https://paulsec.github.io/posts/fastapi_plus_zeit_serverless_fu/) by [Paul Sec](https://twitter.com/PaulWebSec).

## Changelog since v1.21.9

## Changes by Kind

### Feature

- Kubernetes is now built with Golang 1.16.13 ([#107615](https://github.com/kubernetes/kubernetes/pull/107615), [@palnabarun](https://github.com/palnabarun)) [SIG Cloud Provider, Instrumentation, Release and Testing]

- Kubernetes is now built with Go `1.20.4`. ([#117744](https://github.com/kubernetes/kubernetes/pull/117744), [@xmudrii](https://github.com/xmudrii)) [SIG Release and Testing]
- Kubernetes is now built with Go `1.20.5`. ([#118507](https://github.com/kubernetes/kubernetes/pull/118507), [@jeremyrickard](https://github.com/jeremyrickard))

- Kubernetes is now built with Golang 1.16.7. ([#104199](https://github.com/kubernetes/kubernetes/pull/104199), [@cpanato](https://github.com/cpanato))
- Kubernetes is now built with Golang 1.17.1. ([#104904](https://github.com/kubernetes/kubernetes/pull/104904), [@cpanato](https://github.com/cpanato))

unnecessary redirection from ci/latest.txt to ci-cross/latest.txt. Users should know exactly where the builds are stored on Google Cloud storage buckets from now on. For example for 1.9 and 1.10, users can specify ci/latest-1.9 and ci/latest-1.10 as the CI build jobs what build images correctly updates those. The CI jobs for master update the ci-cross/latest location, so if you are looking for latest master builds, then the correct parameter to use would be ci-cross/latest. ([#63504](https://github.com/ku...

unnecessary redirection from ci/latest.txt to ci-cross/latest.txt. Users should know exactly where the builds are stored on Google Cloud storage buckets from now on. For example for 1.9 and 1.10, users can specify ci/latest-1.9 and ci/latest-1.10 as the CI build jobs what build images correctly updates those. The CI jobs for master update the ci-cross/latest location, so if you are looking for latest master builds, then the correct parameter to use would be ci-cross/latest. ([#63504](https://github.com/ku...