Improvements

• [cli] - Implement pulumi stack unselect.
  #9179

• [language/dotnet] - Updated Pulumi dotnet packages to use grpc-dotnet instead of grpc.
  #9149

• [cli/config] - Rename the config property in Pulumi.yaml to stackConfigDir. The config key will continue to be supported.
  #9145

• [cli/plugins] Add support for downloading plugin from private Pulumi GitHub releases. This also drops the use of the GITHUB_ACTOR and GITHUB_PERSONAL_ACCESS_TOKEN environment variables for authenticating to github. Only GITHUB_TOKEN is now used, but this can be set to a personal access token.
  #9185

• [cli] - Speed up pulumi stack --show-name by skipping unneeded snapshot loading.
  #9199

• [cli/plugins] - Improved error message for missing plugins.
  #5208

• [sdk/nodejs] - Take engines property into account when engine-strict appear in npmrc file
  #9249

Bug Fixes

• [sdk/nodejs] - Fix uncaught error "ENOENT: no such file or directory" when an error occurs during the stack up.
  #9065

• [sdk/nodejs] - Fix uncaught error "ENOENT: no such file or directory" when an error occurs during the stack preview.
  #9272

• [sdk/go] - Fix a panic in pulumi.All when using pointer inputs.
  #9197

• [cli/engine] - Fix a panic due to passing "" as the ID for a resource read.
  #9243

• [cli/engine] - Fix a panic due to Check failing while using update plans.
  #9254

• [cli] - Stack names correctly take org set-default into account when printing.
  #9240