- The maximum length of the `CSINode` id field has increased to 256 bytes to match the CSI spec. ([#104160](https://github.com/kubernetes/kubernetes/pull/104160), [@pacoxu](https://github.com/pacoxu))

pkg archive/tar, var ErrInsecurePath error #55356
pkg archive/zip, var ErrInsecurePath error #55356
pkg bytes, func Clone([]uint8) []uint8 #45038
pkg bytes, func CutPrefix([]uint8, []uint8) ([]uint8, bool) #42537
pkg bytes, func CutSuffix([]uint8, []uint8) ([]uint8, bool) #42537
pkg context, func Cause(Context) error #51365
pkg context, func WithCancelCause(Context) (Context, CancelCauseFunc) #51365
pkg context, type CancelCauseFunc func(error) #51365

- Client-go: fixed potential data races retrying requests using a custom `io.Reader` body; with this fix, only requests with no body or with `string` / `[]byte` / `runtime.Object` bodies can be retried ([#113933](https://github.com/kubernetes/kubernetes/pull/113933), [@liggitt](https://github.com/liggitt))

*   Reorder some TF-GAN loss functions in a non-backwards compatible way.

## Known Issues

*   In Python 3, `Dataset.from_generator()` does not support Unicode strings.
    You must convert any strings to bytes objects before yielding them from the
    generator.

## Thanks to our Contributors

This release contains contributions from many people at Google, as well as:

* Add per-pod scheduling metrics across 1 or more schedule attempts. ([#83674](https://github.com/kubernetes/kubernetes/pull/83674), [@liu-cong](https://github.com/liu-cong))
* Fix validation message to mention bytes, not characters. ([#80880](https://github.com/kubernetes/kubernetes/pull/80880), [@DirectXMan12](https://github.com/DirectXMan12))

- Fixed a bug in the JSON frame reader that could cause it to retain a reference to the underlying array of the byte slice passed to read. ([#123620](https://github.com/kubernetes/kubernetes/pull/123620), [@benluddy](https://github.com/benluddy))

## Changelog since v1.8.7

### Other notable changes

* Configurable etcd quota backend bytes in GCE ([#59259](https://github.com/kubernetes/kubernetes/pull/59259), [@wojtek-t](https://github.com/wojtek-t))

* Ensure IP is set for Azure internal load balancer. ([#59083](https://github.com/kubernetes/kubernetes/pull/59083), [@feiskyer](https://github.com/feiskyer))
* Configurable etcd quota backend bytes in GCE ([#59259](https://github.com/kubernetes/kubernetes/pull/59259), [@wojtek-t](https://github.com/wojtek-t))

* Fix a bug that pretty printer marshals empty byte or uint8 slice as null ([#81096](https://github.com/kubernetes/kubernetes/pull/81096), [@roycaihw](https://github.com/roycaihw))

pkg bufio, var ErrAdvanceTooFar error
pkg bufio, var ErrNegativeAdvance error
pkg bufio, var ErrTooLong error
pkg bytes, const MinRead = 512
pkg bytes, func TrimPrefix([]uint8, []uint8) []uint8
pkg bytes, func TrimSuffix([]uint8, []uint8) []uint8
pkg bytes, method (*Buffer) Grow(int)
pkg bytes, method (*Reader) WriteTo(io.Writer) (int64, error)
pkg compress/flate, const BestCompression = 9
pkg compress/flate, const BestSpeed = 1