This version of kustomize manipulates YAML using the kyaml module in this repo instead of the kubernetes apimachinery modules.
This is the way forward.
You can help kustomize by trying this version, and filing issues if you have trouble.
If you hit a blocking issue, you can use the legacy code paths for a build as follows:
kustomize build --enable_kyaml=false {target}
Or, you can use kustomize v3.8.9, which is identical to v3.9.1 except that the default value of the --enable_kyaml flag is false. In some setups, it might be easier to install a different binary than to specify a flag on each build.
6977c83 Pin to api/v0.7.1 (--enableKyaml=true)
8732671 Pin to api/v0.6.8
0d6b232 Pin to cmd/confg v0.8.7
c63ed03 Pin to kyaml v0.10.5
f7b2f0c Pin to gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
338910d In module replacements, drop specific version numbers.
002215d Unpin kyaml
c0a754e Unpin api module.
8dd6f2b describe the format of image tag that is allowed
d25e1ef Unpin api