diff --git a/Makefile b/Makefile
index 0bb754eec28..9fea4a4408b 100644
--- a/Makefile
+++ b/Makefile
@@ -16,6 +16,7 @@ test:
 .PHONY: test
 
 validate-vendor:
+	go version
 	GO111MODULE=on GOPROXY=https://proxy.golang.org go mod tidy
 	GO111MODULE=on GOPROXY=https://proxy.golang.org go mod vendor
 	git status -s ./vendor/ go.mod go.sum
diff --git a/go.mod b/go.mod
index 702c818d6de..fa590794c66 100644
--- a/go.mod
+++ b/go.mod
@@ -30,5 +30,5 @@ require (
 	k8s.io/api v0.0.0-20190816222004-e3a6b8045b0b
 	k8s.io/apimachinery v0.0.0-20190816221834-a9f1d8a9c101
 	k8s.io/client-go v11.0.1-0.20190805182717-6502b5e7b1b5+incompatible
-	k8s.io/test-infra v0.0.0-20190903192658-86fbc418c31d
+	k8s.io/test-infra v0.0.0-20190908161317-466f8ffd615d
 )
diff --git a/go.sum b/go.sum
index cd8b55aee4d..d3d00c27958 100644
--- a/go.sum
+++ b/go.sum
@@ -547,8 +547,8 @@ k8s.io/kubernetes v1.14.6 h1:t8Q3aaWanmiariBBr3qYIcAL9o0pv4MB5tZtfbILJGk=
 k8s.io/kubernetes v1.14.6/go.mod h1:ocZa8+6APFNC2tX1DZASIbocyYT5jHzqFVsY5aoB7Jk=
 k8s.io/repo-infra v0.0.0-20190329054012-df02ded38f95/go.mod h1:+G1xBfZDfVFsm1Tj/HNCvg4QqWx8rJ2Fxpqr1rqp/gQ=
 k8s.io/test-infra v0.0.0-20181019233642-2e10a0bbe9b3/go.mod h1:2NzXB13Ji0nqpyublHeiPC4FZwU0TknfvyaaNfl/BTA=
-k8s.io/test-infra v0.0.0-20190903192658-86fbc418c31d h1:4J8+AGrpi5FmWnEDWaFXuqmdvbQWWpZglosQhrpPWHA=
-k8s.io/test-infra v0.0.0-20190903192658-86fbc418c31d/go.mod h1:D7pZIojdfj0WCmk9XEun96EFY3ArFxL7QdobtsK5TzU=
+k8s.io/test-infra v0.0.0-20190908161317-466f8ffd615d h1:w/0hAl0G+NaknJKNJZLPV/lfqivEn0rdZ0ilY5sDsB8=
+k8s.io/test-infra v0.0.0-20190908161317-466f8ffd615d/go.mod h1:D7pZIojdfj0WCmk9XEun96EFY3ArFxL7QdobtsK5TzU=
 k8s.io/utils v0.0.0-20181019225348-5e321f9a457c/go.mod h1:8k8uAuAQ0rXslZKaEWd0c3oVhZz7sSzSiPnVZayjIX0=
 k8s.io/utils v0.0.0-20190506122338-8fab8cb257d5 h1:VBM/0P5TWxwk+Nw6Z+lAw3DKgO76g90ETOiA6rfLV1Y=
 k8s.io/utils v0.0.0-20190506122338-8fab8cb257d5/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
diff --git a/vendor/k8s.io/test-infra/experiment/autobumper/bumper/bumper.go b/vendor/k8s.io/test-infra/experiment/autobumper/bumper/bumper.go
index 35ffbab6120..4a6dadf5c46 100644
--- a/vendor/k8s.io/test-infra/experiment/autobumper/bumper/bumper.go
+++ b/vendor/k8s.io/test-infra/experiment/autobumper/bumper/bumper.go
@@ -51,21 +51,16 @@ func Call(cmd string, args ...string) error {
 // "images" contains the tag replacements that have been made which is returned from "UpdateReferences([]string{"."}, extraFiles)"
 // "images" and "extraLineInPRBody" are used to generate commit summary and body of the PR
 func UpdatePR(gc github.Client, org, repo string, images map[string]string, extraLineInPRBody string, matchTitle, source, branch string) error {
-	return updatePR(gc, org, repo, makeCommitSummary(images), generatePRBody(images, extraLineInPRBody), matchTitle, source, branch)
+	return UpdatePullRequest(gc, org, repo, makeCommitSummary(images), generatePRBody(images, extraLineInPRBody), matchTitle, source, branch)
 }
 
-func updatePR(gc github.Client, org, repo, title, body, matchTitle, source, branch string) error {
-	logrus.Info("Creating PR...")
-	n, err := updater.UpdatePR(org, repo, title, body, matchTitle, gc)
+// UpdatePullRequest updates with github client "gc" the PR of github repo org/repo
+// with "title" and "body" of PR matching "matchTitle" from "source" to "branch"
+func UpdatePullRequest(gc github.Client, org, repo, title, body, matchTitle, source, branch string) error {
+	logrus.Info("Creating or updating PR...")
+	n, err := updater.EnsurePR(org, repo, title, body, source, branch, matchTitle, gc)
 	if err != nil {
-		return fmt.Errorf("failed to update %d: %v", n, err)
-	}
-	if n == nil {
-		pr, err := gc.CreatePullRequest(org, repo, title, body, source, branch, true)
-		if err != nil {
-			return fmt.Errorf("failed to create PR: %v", err)
-		}
-		n = &pr
+		return fmt.Errorf("failed to ensure PR exists: %v", err)
 	}
 
 	logrus.Infof("PR %s/%s#%d will merge %s into %s: %s", org, repo, *n, source, branch, title)
@@ -115,11 +110,17 @@ func makeCommitSummary(images map[string]string) string {
 // "images" contains the tag replacements that have been made which is returned from "UpdateReferences([]string{"."}, extraFiles)"
 // "images" is used to generate commit message
 func MakeGitCommit(remote, remoteBranch, name, email string, images map[string]string) error {
+	return GitCommitAndPush(remote, remoteBranch, name, email, makeCommitSummary(images))
+}
+
+// GitCommitAndPush runs a sequence of git commands to
+// commit and push the changes the "remote" on "remoteBranch"
+// "name", "email", and "message" are used for git-commit command
+func GitCommitAndPush(remote, remoteBranch, name, email, message string) error {
 	logrus.Info("Making git commit...")
 	if err := Call("git", "add", "-A"); err != nil {
 		return fmt.Errorf("failed to git add: %v", err)
 	}
-	message := makeCommitSummary(images)
 	commitArgs := []string{"commit", "-m", message}
 	if name != "" && email != "" {
 		commitArgs = append(commitArgs, "--author", fmt.Sprintf("%s <%s>", name, email))
diff --git a/vendor/k8s.io/test-infra/prow/config/config.go b/vendor/k8s.io/test-infra/prow/config/config.go
index bc8b088725d..9de33a49fb4 100644
--- a/vendor/k8s.io/test-infra/prow/config/config.go
+++ b/vendor/k8s.io/test-infra/prow/config/config.go
@@ -77,6 +77,10 @@ type JobConfig struct {
 
 	// Periodics are not associated with any repo.
 	Periodics []Periodic `json:"periodics,omitempty"`
+
+	// AllRepos contains all Repos that have one or more jobs configured or
+	// for which a tide query is configured.
+	AllRepos sets.String `json:"-"`
 }
 
 // ProwConfig is config for all prow controllers
@@ -248,9 +252,6 @@ func (rg *RefGetterForGitHubPullRequest) BaseSHA() (string, error) {
 // also need the result of that GitHub call just keep a pointer to its result, bust must
 // nilcheck that pointer before accessing it.
 func (c *Config) GetPresubmits(gc *git.Client, identifier string, baseSHAGetter RefGetter, headSHAGetters ...RefGetter) ([]Presubmit, error) {
-	if gc == nil {
-		return nil, errors.New("gitClient is nil")
-	}
 	if identifier == "" {
 		return nil, errors.New("no identifier for repo given")
 	}
@@ -258,6 +259,9 @@ func (c *Config) GetPresubmits(gc *git.Client, identifier string, baseSHAGetter
 		return c.Presubmits[identifier], nil
 	}
 
+	if gc == nil {
+		return nil, errors.New("gitClient is nil")
+	}
 	baseSHA, err := baseSHAGetter()
 	if err != nil {
 		return nil, fmt.Errorf("failed to get baseSHA: %v", err)
@@ -373,11 +377,6 @@ type Plank struct {
 	// DefaultDecorationConfig are defaults for shared fields for ProwJobs
 	// that request to have their PodSpecs decorated
 	DefaultDecorationConfig *prowapi.DecorationConfig `json:"default_decoration_config,omitempty"`
-	// Deprecated, use JobURLPrefixConfig instead
-	// JobURLPrefix is the host and path prefix under
-	// which job details will be viewable
-	// TODO @alvaroaleman: Remove in September 2019
-	JobURLPrefix string `json:"job_url_prefix,omitempty"`
 	// JobURLPrefixConfig is the host and path prefix under which job details
 	// will be viewable. Use `org/repo`, `org` or `*`as key and an url as value
 	JobURLPrefixConfig map[string]string `json:"job_url_prefix_config,omitempty"`
@@ -709,6 +708,12 @@ func loadConfig(prowConfig, jobConfig string) (*Config, error) {
 		return nil, err
 	}
 
+	nc.AllRepos = sets.String{}
+	for _, query := range nc.Tide.Queries {
+		for _, repo := range query.Repos {
+			nc.AllRepos.Insert(repo)
+		}
+	}
 	// TODO(krzyzacy): temporary allow empty jobconfig
 	//                 also temporary allow job config in prow config
 	if jobConfig == "" {
@@ -889,16 +894,18 @@ func (c *Config) finalizeJobConfig() error {
 			return errors.New("no default GCS credentials secret provided for plank")
 		}
 
-		for _, vs := range c.Presubmits {
+		for repo, vs := range c.Presubmits {
 			for i := range vs {
 				setPresubmitDecorationDefaults(c, &vs[i])
 			}
+			c.AllRepos.Insert(repo)
 		}
 
-		for _, js := range c.Postsubmits {
+		for repo, js := range c.Postsubmits {
 			for i := range js {
 				setPostsubmitDecorationDefaults(c, &js[i])
 			}
+			c.AllRepos.Insert(repo)
 		}
 
 		for i := range c.Periodics {
@@ -945,9 +952,6 @@ func (c *Config) finalizeJobConfig() error {
 
 // validateComponentConfig validates the infrastructure component configuration
 func (c *Config) validateComponentConfig() error {
-	if c.Plank.JobURLPrefix != "" && c.Plank.JobURLPrefixConfig["*"] != "" {
-		return errors.New(`Planks job_url_prefix must be unset when job_url_prefix_config["*"] is set. The former is deprecated, use the latter`)
-	}
 	for k, v := range c.Plank.JobURLPrefixConfig {
 		if _, err := url.Parse(v); err != nil {
 			return fmt.Errorf(`Invalid value for Planks job_url_prefix_config["%s"]: %v`, k, err)
@@ -1304,13 +1308,6 @@ func parseProwConfig(c *Config) error {
 	if c.Plank.JobURLPrefixConfig == nil {
 		c.Plank.JobURLPrefixConfig = map[string]string{}
 	}
-	if c.Plank.JobURLPrefix != "" && c.Plank.JobURLPrefixConfig["*"] == "" {
-		c.Plank.JobURLPrefixConfig["*"] = c.Plank.JobURLPrefix
-		// Set JobURLPrefix to an empty string to indicate we've moved
-		// it to JobURLPrefixConfig["*"] without overwriting the latter
-		// so validation succeeds
-		c.Plank.JobURLPrefix = ""
-	}
 
 	if c.GitHubOptions.LinkURLFromConfig == "" {
 		c.GitHubOptions.LinkURLFromConfig = "https://github.com"
diff --git a/vendor/k8s.io/test-infra/prow/github/client.go b/vendor/k8s.io/test-infra/prow/github/client.go
index 754d159f4fd..f1e2883b03e 100644
--- a/vendor/k8s.io/test-infra/prow/github/client.go
+++ b/vendor/k8s.io/test-infra/prow/github/client.go
@@ -152,6 +152,7 @@ type RepositoryClient interface {
 	IsCollaborator(org, repo, user string) (bool, error)
 	ListCollaborators(org, repo string) ([]User, error)
 	CreateFork(owner, repo string) error
+	ListRepoTeams(org, repo string) ([]Team, error)
 }
 
 // TeamClient interface for team related API actions
@@ -174,6 +175,7 @@ type TeamClient interface {
 // UserClient interface for user related API actions
 type UserClient interface {
 	BotName() (string, error)
+	BotUser() (*User, error)
 	Email() (string, error)
 }
 
@@ -251,9 +253,8 @@ type delegate struct {
 	getToken func() []byte
 	censor   func([]byte) []byte
 
-	mut     sync.Mutex // protects botName and email
-	botName string
-	email   string
+	mut      sync.Mutex // protects botName and email
+	userData *User
 }
 
 // WithFields clones the client, keeping the underlying delegate the same but adding
@@ -753,11 +754,10 @@ func (c *client) getUserData() error {
 	if err != nil {
 		return err
 	}
-	c.botName = u.Login
+	c.userData = &u
 	// email needs to be publicly accessible via the profile
 	// of the current account. Read below for more info
 	// https://developer.github.com/v3/users/#get-a-single-user
-	c.email = u.Email
 	return nil
 }
 
@@ -767,12 +767,26 @@ func (c *client) getUserData() error {
 func (c *client) BotName() (string, error) {
 	c.mut.Lock()
 	defer c.mut.Unlock()
-	if c.botName == "" {
+	if c.userData == nil {
 		if err := c.getUserData(); err != nil {
 			return "", fmt.Errorf("fetching bot name from GitHub: %v", err)
 		}
 	}
-	return c.botName, nil
+	return c.userData.Login, nil
+}
+
+// BotUser returns the user data of the authenticated identity.
+//
+// See https://developer.github.com/v3/users/#get-the-authenticated-user
+func (c *client) BotUser() (*User, error) {
+	c.mut.Lock()
+	defer c.mut.Unlock()
+	if c.userData == nil {
+		if err := c.getUserData(); err != nil {
+			return nil, fmt.Errorf("fetching bot name from GitHub: %v", err)
+		}
+	}
+	return c.userData, nil
 }
 
 // Email returns the user-configured email for the authenticated identity.
@@ -781,12 +795,12 @@ func (c *client) BotName() (string, error) {
 func (c *client) Email() (string, error) {
 	c.mut.Lock()
 	defer c.mut.Unlock()
-	if c.email == "" {
+	if c.userData == nil {
 		if err := c.getUserData(); err != nil {
 			return "", fmt.Errorf("fetching e-mail from GitHub: %v", err)
 		}
 	}
-	return c.email, nil
+	return c.userData.Email, nil
 }
 
 // IsMember returns whether or not the user is a member of the org.
@@ -1507,7 +1521,7 @@ func (c *client) UpdatePullRequest(org, repo string, number int, title, body *st
 		op := "open"
 		data.State = &op
 	} else if open != nil {
-		cl := "clossed"
+		cl := "closed"
 		data.State = &cl
 	}
 	_, err := c.request(&request{
@@ -2827,6 +2841,31 @@ func (c *client) CreateFork(owner, repo string) error {
 	return err
 }
 
+// ListRepoTeams gets a list of all the teams with access to a repository
+// See https://developer.github.com/v3/repos/#list-teams
+func (c *client) ListRepoTeams(org, repo string) ([]Team, error) {
+	c.log("ListRepoTeams", org, repo)
+	if c.fake {
+		return nil, nil
+	}
+	path := fmt.Sprintf("/repos/%s/%s/teams", org, repo)
+	var teams []Team
+	err := c.readPaginatedResults(
+		path,
+		acceptNone,
+		func() interface{} {
+			return &[]Team{}
+		},
+		func(obj interface{}) {
+			teams = append(teams, *(obj.(*[]Team))...)
+		},
+	)
+	if err != nil {
+		return nil, err
+	}
+	return teams, nil
+}
+
 // ListIssueEvents gets a list events from GitHub's events API that pertain to the specified issue.
 // The events that are returned have a different format than webhook events and certain event types
 // are excluded.
diff --git a/vendor/k8s.io/test-infra/prow/github/types.go b/vendor/k8s.io/test-infra/prow/github/types.go
index c9ce49fe0b1..6bdc42c4b81 100644
--- a/vendor/k8s.io/test-infra/prow/github/types.go
+++ b/vendor/k8s.io/test-infra/prow/github/types.go
@@ -153,11 +153,12 @@ type CombinedStatus struct {
 
 // User is a GitHub user account.
 type User struct {
-	Login   string `json:"login"`
-	Name    string `json:"name"`
-	Email   string `json:"email"`
-	ID      int    `json:"id"`
-	HTMLURL string `json:"html_url"`
+	Login       string          `json:"login"`
+	Name        string          `json:"name"`
+	Email       string          `json:"email"`
+	ID          int             `json:"id"`
+	HTMLURL     string          `json:"html_url"`
+	Permissions RepoPermissions `json:"permissions"`
 }
 
 // NormLogin normalizes GitHub login strings
@@ -354,6 +355,14 @@ func (l *RepoPermissionLevel) UnmarshalText(text []byte) error {
 	return nil
 }
 
+type TeamPermission string
+
+const (
+	RepoPull  TeamPermission = "pull"
+	RepoPush  TeamPermission = "push"
+	RepoAdmin TeamPermission = "admin"
+)
+
 // Branch contains general branch information.
 type Branch struct {
 	Name      string `json:"name"`
@@ -805,13 +814,14 @@ const (
 
 // Team is a github organizational team
 type Team struct {
-	ID           int    `json:"id,omitempty"`
-	Name         string `json:"name"`
-	Slug         string `json:"slug"`
-	Description  string `json:"description,omitempty"`
-	Privacy      string `json:"privacy,omitempty"`
-	Parent       *Team  `json:"parent,omitempty"`         // Only present in responses
-	ParentTeamID *int   `json:"parent_team_id,omitempty"` // Only valid in creates/edits
+	ID           int            `json:"id,omitempty"`
+	Name         string         `json:"name"`
+	Slug         string         `json:"slug"`
+	Description  string         `json:"description,omitempty"`
+	Privacy      string         `json:"privacy,omitempty"`
+	Parent       *Team          `json:"parent,omitempty"`         // Only present in responses
+	ParentTeamID *int           `json:"parent_team_id,omitempty"` // Only valid in creates/edits
+	Permission   TeamPermission `json:"permission"`
 }
 
 // TeamMember is a member of an organizational team
diff --git a/vendor/k8s.io/test-infra/prow/plugins/label/BUILD.bazel b/vendor/k8s.io/test-infra/prow/plugins/label/BUILD.bazel
index 38cc44d90c7..0de132c4eb0 100644
--- a/vendor/k8s.io/test-infra/prow/plugins/label/BUILD.bazel
+++ b/vendor/k8s.io/test-infra/prow/plugins/label/BUILD.bazel
@@ -28,6 +28,7 @@ go_library(
         "//prow/pluginhelp:go_default_library",
         "//prow/plugins:go_default_library",
         "@com_github_sirupsen_logrus//:go_default_library",
+        "@io_k8s_apimachinery//pkg/util/sets:go_default_library",
     ],
 )
 
diff --git a/vendor/k8s.io/test-infra/prow/plugins/label/label.go b/vendor/k8s.io/test-infra/prow/plugins/label/label.go
index 8db2df75328..f1c03841e62 100644
--- a/vendor/k8s.io/test-infra/prow/plugins/label/label.go
+++ b/vendor/k8s.io/test-infra/prow/plugins/label/label.go
@@ -23,6 +23,7 @@ import (
 
 	"github.com/sirupsen/logrus"
 
+	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/test-infra/prow/github"
 	"k8s.io/test-infra/prow/pluginhelp"
 	"k8s.io/test-infra/prow/plugins"
@@ -31,12 +32,11 @@ import (
 const pluginName = "label"
 
 var (
-	defaultLabels           = []string{"kind", "priority", "area"}
-	labelRegex              = regexp.MustCompile(`(?m)^/(area|committee|kind|language|priority|sig|triage|wg)\s*(.*)$`)
-	removeLabelRegex        = regexp.MustCompile(`(?m)^/remove-(area|committee|kind|language|priority|sig|triage|wg)\s*(.*)$`)
-	customLabelRegex        = regexp.MustCompile(`(?m)^/label\s*(.*)$`)
-	customRemoveLabelRegex  = regexp.MustCompile(`(?m)^/remove-label\s*(.*)$`)
-	nonExistentLabelOnIssue = "Those labels are not set on the issue: `%v`"
+	defaultLabels          = []string{"kind", "priority", "area"}
+	labelRegex             = regexp.MustCompile(`(?m)^/(area|committee|kind|language|priority|sig|triage|wg)\s*(.*)$`)
+	removeLabelRegex       = regexp.MustCompile(`(?m)^/remove-(area|committee|kind|language|priority|sig|triage|wg)\s*(.*)$`)
+	customLabelRegex       = regexp.MustCompile(`(?m)^/label\s*(.*)$`)
+	customRemoveLabelRegex = regexp.MustCompile(`(?m)^/remove-label\s*(.*)$`)
 )
 
 func init() {
@@ -66,7 +66,7 @@ func helpProvider(config *plugins.Configuration, enabledRepos []string) (*plugin
 		Description: "Applies or removes a label from one of the recognized types of labels.",
 		Featured:    false,
 		WhoCanUse:   "Anyone can trigger this command on a PR.",
-		Examples:    []string{"/kind bug", "/remove-area prow", "/sig testing", "/language zh"},
+		Examples:    []string{"/kind bug", "/remove-area prow", "/sig testing", "/language zh", "/label foo-bar-baz"},
 	})
 	return pluginHelp, nil
 }
@@ -96,20 +96,24 @@ func getLabelsFromREMatches(matches [][]string) (labels []string) {
 
 // getLabelsFromGenericMatches returns label matches with extra labels if those
 // have been configured in the plugin config.
-func getLabelsFromGenericMatches(matches [][]string, additionalLabels []string) []string {
+func getLabelsFromGenericMatches(matches [][]string, additionalLabels []string, invalidLabels *[]string) []string {
 	if len(additionalLabels) == 0 {
 		return nil
 	}
 	var labels []string
+	labelFilter := sets.String{}
+	for _, l := range additionalLabels {
+		labelFilter.Insert(strings.ToLower(l))
+	}
 	for _, match := range matches {
 		parts := strings.Split(match[0], " ")
 		if ((parts[0] != "/label") && (parts[0] != "/remove-label")) || len(parts) != 2 {
 			continue
 		}
-		for _, l := range additionalLabels {
-			if l == parts[1] {
-				labels = append(labels, parts[1])
-			}
+		if labelFilter.Has(strings.ToLower(parts[1])) {
+			labels = append(labels, parts[1])
+		} else {
+			*invalidLabels = append(*invalidLabels, match[0])
 		}
 	}
 	return labels
@@ -136,9 +140,9 @@ func handle(gc githubClient, log *logrus.Entry, additionalLabels []string, e *gi
 		return err
 	}
 
-	RepoLabelsExisting := map[string]string{}
+	RepoLabelsExisting := sets.String{}
 	for _, l := range repoLabels {
-		RepoLabelsExisting[strings.ToLower(l.Name)] = l.Name
+		RepoLabelsExisting.Insert(strings.ToLower(l.Name))
 	}
 	var (
 		nonexistent         []string
@@ -146,23 +150,21 @@ func handle(gc githubClient, log *logrus.Entry, additionalLabels []string, e *gi
 		labelsToAdd         []string
 		labelsToRemove      []string
 	)
-
 	// Get labels to add and labels to remove from regexp matches
-	labelsToAdd = append(getLabelsFromREMatches(labelMatches), getLabelsFromGenericMatches(customLabelMatches, additionalLabels)...)
-	labelsToRemove = append(getLabelsFromREMatches(removeLabelMatches), getLabelsFromGenericMatches(customRemoveLabelMatches, additionalLabels)...)
-
+	labelsToAdd = append(getLabelsFromREMatches(labelMatches), getLabelsFromGenericMatches(customLabelMatches, additionalLabels, &nonexistent)...)
+	labelsToRemove = append(getLabelsFromREMatches(removeLabelMatches), getLabelsFromGenericMatches(customRemoveLabelMatches, additionalLabels, &nonexistent)...)
 	// Add labels
 	for _, labelToAdd := range labelsToAdd {
 		if github.HasLabel(labelToAdd, labels) {
 			continue
 		}
 
-		if _, ok := RepoLabelsExisting[labelToAdd]; !ok {
+		if !RepoLabelsExisting.Has(labelToAdd) {
 			nonexistent = append(nonexistent, labelToAdd)
 			continue
 		}
 
-		if err := gc.AddLabel(org, repo, e.Number, RepoLabelsExisting[labelToAdd]); err != nil {
+		if err := gc.AddLabel(org, repo, e.Number, labelToAdd); err != nil {
 			log.WithError(err).Errorf("GitHub failed to add the following label: %s", labelToAdd)
 		}
 	}
@@ -174,7 +176,7 @@ func handle(gc githubClient, log *logrus.Entry, additionalLabels []string, e *gi
 			continue
 		}
 
-		if _, ok := RepoLabelsExisting[labelToRemove]; !ok {
+		if !RepoLabelsExisting.Has(labelToRemove) {
 			nonexistent = append(nonexistent, labelToRemove)
 			continue
 		}
@@ -184,14 +186,15 @@ func handle(gc githubClient, log *logrus.Entry, additionalLabels []string, e *gi
 		}
 	}
 
-	//TODO(grodrigues3): Once labels are standardized, make this reply with a comment.
 	if len(nonexistent) > 0 {
 		log.Infof("Nonexistent labels: %v", nonexistent)
+		msg := fmt.Sprintf("The label(s) `%s` cannot be appled. These labels are supported: `%s`", strings.Join(nonexistent, ", "), strings.Join(additionalLabels, ", "))
+		return gc.CreateComment(org, repo, e.Number, plugins.FormatResponseRaw(e.Body, e.HTMLURL, e.User.Login, msg))
 	}
 
 	// Tried to remove Labels that were not present on the Issue
 	if len(noSuchLabelsOnIssue) > 0 {
-		msg := fmt.Sprintf(nonExistentLabelOnIssue, strings.Join(noSuchLabelsOnIssue, ", "))
+		msg := fmt.Sprintf("Those labels are not set on the issue: `%v`", strings.Join(noSuchLabelsOnIssue, ", "))
 		return gc.CreateComment(org, repo, e.Number, plugins.FormatResponseRaw(e.Body, e.HTMLURL, e.User.Login, msg))
 	}
 
diff --git a/vendor/k8s.io/test-infra/robots/pr-creator/updater/updater.go b/vendor/k8s.io/test-infra/robots/pr-creator/updater/updater.go
index 25e7ba34427..0d5ff667c1c 100644
--- a/vendor/k8s.io/test-infra/robots/pr-creator/updater/updater.go
+++ b/vendor/k8s.io/test-infra/robots/pr-creator/updater/updater.go
@@ -30,6 +30,11 @@ type updateClient interface {
 	FindIssues(query, sort string, asc bool) ([]github.Issue, error)
 }
 
+type ensureClient interface {
+	updateClient
+	CreatePullRequest(org, repo, title, body, head, base string, canModify bool) (int, error)
+}
+
 func UpdatePR(org, repo, title, body, matchTitle string, gc updateClient) (*int, error) {
 	if matchTitle == "" {
 		return nil, nil
@@ -41,7 +46,7 @@ func UpdatePR(org, repo, title, body, matchTitle string, gc updateClient) (*int,
 		return nil, fmt.Errorf("bot name: %v", err)
 	}
 
-	issues, err := gc.FindIssues("is:open is:pr archived:false in:title author:"+me+" "+matchTitle, "updated", true)
+	issues, err := gc.FindIssues("is:open is:pr archived:false in:title author:"+me+" "+matchTitle, "updated", false)
 	if err != nil {
 		return nil, fmt.Errorf("find issues: %v", err)
 	} else if len(issues) == 0 {
@@ -59,3 +64,19 @@ func UpdatePR(org, repo, title, body, matchTitle string, gc updateClient) (*int,
 
 	return &n, nil
 }
+
+func EnsurePR(org, repo, title, body, source, branch, matchTitle string, gc ensureClient) (*int, error) {
+	n, err := UpdatePR(org, repo, title, body, matchTitle, gc)
+	if err != nil {
+		return nil, fmt.Errorf("update error: %v", err)
+	}
+	if n == nil {
+		allowMods := true
+		pr, err := gc.CreatePullRequest(org, repo, title, body, source, branch, allowMods)
+		if err != nil {
+			return nil, fmt.Errorf("create error: %v", err)
+		}
+		n = &pr
+	}
+	return n, nil
+}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 424298a0dd6..b5c5a78919d 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -506,7 +506,7 @@ k8s.io/client-go/third_party/forked/golang/template
 k8s.io/klog
 # k8s.io/kube-openapi v0.0.0-20180731170545-e3762e86a74c
 k8s.io/kube-openapi/pkg/util/proto
-# k8s.io/test-infra v0.0.0-20190903192658-86fbc418c31d
+# k8s.io/test-infra v0.0.0-20190908161317-466f8ffd615d
 k8s.io/test-infra/experiment/autobumper/bumper
 k8s.io/test-infra/prow/config/secret
 k8s.io/test-infra/prow/github