Files in this repo's `api/next` directory must have corresponding files in
`doc/next/*stdlib/*minor`.
The files should be in the subdirectory for the package with the new
API, and should be named after the issue number of the API proposal.
For example, if the directory `6-stdlib/99-minor` is present,
then an `api/next` file with the line

    pkg net/http, function F #12345

			continue
		}
		if needApproval {
			feature, approval, ok := strings.Cut(line, "#")
			if !ok {
				log.Printf("%s:%d: missing proposal approval\n", filename, i+1)
				exitCode = 1
			} else {
				_, err := strconv.Atoi(approval)
				if err != nil {
					log.Printf("%s:%d: malformed proposal approval #%s\n", filename, i+1, approval)
					exitCode = 1
				}
			}
			line = strings.TrimSpace(feature)
		} else {

- Introduce support for CEL optionals (see [CEL spec proposal 246](https://github.com/google/cel-spec/wiki/proposal-246)).
  This feature will not be fully enabled until a future Kubernetes release (likely to be v1.29), but is added in v1.28 to enable

* Remove deprecated ScheduledJobs endpoints,...

 
## Changes by Kind

### Deprecation

- #### Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:
  
  <!--
  This section can be blank if this pull request does not require a release note.
  
  When adding links which point to resources within git repositories, like

*   Fixes a overflow in `ImageProjectiveTransformV2` ([CVE-2022-41886](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-41886))
*   Fixes an FPE in `tf.image.generate_bounding_box_proposals` on GPU ([CVE-2022-41888](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-41888))

### Feature

- #### Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:
  
  <!--
  This section can be blank if this pull request does not require a release note.
  
  When adding links which point to resources within git repositories, like

## Changelog since v1.26.0-alpha.2

## Changes by Kind

### API Change

- **Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.**:
  
  <!--
  This section can be blank if this pull request does not require a release note.
  
  When adding links which point to resources within git repositories, like