diff --git a/.changelog/5200.txt b/.changelog/5200.txt
new file mode 100644
index 000000000..289c22215
--- /dev/null
+++ b/.changelog/5200.txt
@@ -0,0 +1,3 @@
+```release-note:improvement
+connect: update supported envoy versions to 1.23.8, 1.24.6, 1.25.4, 1.26.0
+```
\ No newline at end of file
diff --git a/.github/workflows/test-integrations.yml b/.github/workflows/test-integrations.yml
index 731045d8c..3c44198ed 100644
--- a/.github/workflows/test-integrations.yml
+++ b/.github/workflows/test-integrations.yml
@@ -153,7 +153,7 @@ jobs:
           # this is further going to multiplied in envoy-integration tests by the 
           # other dimensions in the matrix.  Currently TOTAL_RUNNERS would be
           # multiplied by 8 based on these values:
-          # envoy-version: ["1.22.11", "1.23.8", "1.24.6", "1.25.4"]
+          # envoy-version: ["1.23.8", "1.24.6", "1.25.4", "1.26.0"]
           # xds-target: ["server", "client"]
           TOTAL_RUNNERS: 4 
           JQ_SLICER: '[ inputs ] | [_nwise(length / $runnercount | floor)]'
@@ -186,7 +186,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        envoy-version: ["1.22.11", "1.23.8", "1.24.6", "1.25.4"]
+        envoy-version: ["1.23.8", "1.24.6", "1.25.4", "1.26.0"]
         xds-target: ["server", "client"]
         test-cases: ${{ fromJSON(needs.generate-envoy-job-matrices.outputs.envoy-matrix) }}
     env:
diff --git a/envoyextensions/xdscommon/envoy_versioning_test.go b/envoyextensions/xdscommon/envoy_versioning_test.go
index 96f6f305d..ff9318239 100644
--- a/envoyextensions/xdscommon/envoy_versioning_test.go
+++ b/envoyextensions/xdscommon/envoy_versioning_test.go
@@ -81,50 +81,62 @@ func TestDetermineSupportedProxyFeaturesFromString(t *testing.T) {
 
 	// Just the bad versions
 	cases := map[string]testcase{
-		"1.9.0":  {expectErr: "Envoy 1.9.0 " + errTooOld},
-		"1.10.0": {expectErr: "Envoy 1.10.0 " + errTooOld},
-		"1.11.0": {expectErr: "Envoy 1.11.0 " + errTooOld},
-		"1.12.0": {expectErr: "Envoy 1.12.0 " + errTooOld},
-		"1.12.1": {expectErr: "Envoy 1.12.1 " + errTooOld},
-		"1.12.2": {expectErr: "Envoy 1.12.2 " + errTooOld},
-		"1.12.3": {expectErr: "Envoy 1.12.3 " + errTooOld},
-		"1.12.4": {expectErr: "Envoy 1.12.4 " + errTooOld},
-		"1.12.5": {expectErr: "Envoy 1.12.5 " + errTooOld},
-		"1.12.6": {expectErr: "Envoy 1.12.6 " + errTooOld},
-		"1.12.7": {expectErr: "Envoy 1.12.7 " + errTooOld},
-		"1.13.0": {expectErr: "Envoy 1.13.0 " + errTooOld},
-		"1.13.1": {expectErr: "Envoy 1.13.1 " + errTooOld},
-		"1.13.2": {expectErr: "Envoy 1.13.2 " + errTooOld},
-		"1.13.3": {expectErr: "Envoy 1.13.3 " + errTooOld},
-		"1.13.4": {expectErr: "Envoy 1.13.4 " + errTooOld},
-		"1.13.5": {expectErr: "Envoy 1.13.5 " + errTooOld},
-		"1.13.6": {expectErr: "Envoy 1.13.6 " + errTooOld},
-		"1.13.7": {expectErr: "Envoy 1.13.7 " + errTooOld},
-		"1.14.0": {expectErr: "Envoy 1.14.0 " + errTooOld},
-		"1.14.1": {expectErr: "Envoy 1.14.1 " + errTooOld},
-		"1.14.2": {expectErr: "Envoy 1.14.2 " + errTooOld},
-		"1.14.3": {expectErr: "Envoy 1.14.3 " + errTooOld},
-		"1.14.4": {expectErr: "Envoy 1.14.4 " + errTooOld},
-		"1.14.5": {expectErr: "Envoy 1.14.5 " + errTooOld},
-		"1.14.6": {expectErr: "Envoy 1.14.6 " + errTooOld},
-		"1.14.7": {expectErr: "Envoy 1.14.7 " + errTooOld},
-		"1.15.0": {expectErr: "Envoy 1.15.0 " + errTooOld},
-		"1.15.1": {expectErr: "Envoy 1.15.1 " + errTooOld},
-		"1.15.2": {expectErr: "Envoy 1.15.2 " + errTooOld},
-		"1.15.3": {expectErr: "Envoy 1.15.3 " + errTooOld},
-		"1.15.4": {expectErr: "Envoy 1.15.4 " + errTooOld},
-		"1.15.5": {expectErr: "Envoy 1.15.5 " + errTooOld},
-		"1.16.1": {expectErr: "Envoy 1.16.1 " + errTooOld},
-		"1.16.2": {expectErr: "Envoy 1.16.2 " + errTooOld},
-		"1.16.3": {expectErr: "Envoy 1.16.3 " + errTooOld},
-		"1.16.4": {expectErr: "Envoy 1.16.4 " + errTooOld},
-		"1.16.5": {expectErr: "Envoy 1.16.5 " + errTooOld},
-		"1.16.6": {expectErr: "Envoy 1.16.6 " + errTooOld},
-		"1.17.4": {expectErr: "Envoy 1.17.4 " + errTooOld},
-		"1.18.6": {expectErr: "Envoy 1.18.6 " + errTooOld},
-		"1.19.5": {expectErr: "Envoy 1.19.5 " + errTooOld},
-		"1.20.7": {expectErr: "Envoy 1.20.7 " + errTooOld},
-		"1.21.5": {expectErr: "Envoy 1.21.5 " + errTooOld},
+		"1.9.0":   {expectErr: "Envoy 1.9.0 " + errTooOld},
+		"1.10.0":  {expectErr: "Envoy 1.10.0 " + errTooOld},
+		"1.11.0":  {expectErr: "Envoy 1.11.0 " + errTooOld},
+		"1.12.0":  {expectErr: "Envoy 1.12.0 " + errTooOld},
+		"1.12.1":  {expectErr: "Envoy 1.12.1 " + errTooOld},
+		"1.12.2":  {expectErr: "Envoy 1.12.2 " + errTooOld},
+		"1.12.3":  {expectErr: "Envoy 1.12.3 " + errTooOld},
+		"1.12.4":  {expectErr: "Envoy 1.12.4 " + errTooOld},
+		"1.12.5":  {expectErr: "Envoy 1.12.5 " + errTooOld},
+		"1.12.6":  {expectErr: "Envoy 1.12.6 " + errTooOld},
+		"1.12.7":  {expectErr: "Envoy 1.12.7 " + errTooOld},
+		"1.13.0":  {expectErr: "Envoy 1.13.0 " + errTooOld},
+		"1.13.1":  {expectErr: "Envoy 1.13.1 " + errTooOld},
+		"1.13.2":  {expectErr: "Envoy 1.13.2 " + errTooOld},
+		"1.13.3":  {expectErr: "Envoy 1.13.3 " + errTooOld},
+		"1.13.4":  {expectErr: "Envoy 1.13.4 " + errTooOld},
+		"1.13.5":  {expectErr: "Envoy 1.13.5 " + errTooOld},
+		"1.13.6":  {expectErr: "Envoy 1.13.6 " + errTooOld},
+		"1.13.7":  {expectErr: "Envoy 1.13.7 " + errTooOld},
+		"1.14.0":  {expectErr: "Envoy 1.14.0 " + errTooOld},
+		"1.14.1":  {expectErr: "Envoy 1.14.1 " + errTooOld},
+		"1.14.2":  {expectErr: "Envoy 1.14.2 " + errTooOld},
+		"1.14.3":  {expectErr: "Envoy 1.14.3 " + errTooOld},
+		"1.14.4":  {expectErr: "Envoy 1.14.4 " + errTooOld},
+		"1.14.5":  {expectErr: "Envoy 1.14.5 " + errTooOld},
+		"1.14.6":  {expectErr: "Envoy 1.14.6 " + errTooOld},
+		"1.14.7":  {expectErr: "Envoy 1.14.7 " + errTooOld},
+		"1.15.0":  {expectErr: "Envoy 1.15.0 " + errTooOld},
+		"1.15.1":  {expectErr: "Envoy 1.15.1 " + errTooOld},
+		"1.15.2":  {expectErr: "Envoy 1.15.2 " + errTooOld},
+		"1.15.3":  {expectErr: "Envoy 1.15.3 " + errTooOld},
+		"1.15.4":  {expectErr: "Envoy 1.15.4 " + errTooOld},
+		"1.15.5":  {expectErr: "Envoy 1.15.5 " + errTooOld},
+		"1.16.1":  {expectErr: "Envoy 1.16.1 " + errTooOld},
+		"1.16.2":  {expectErr: "Envoy 1.16.2 " + errTooOld},
+		"1.16.3":  {expectErr: "Envoy 1.16.3 " + errTooOld},
+		"1.16.4":  {expectErr: "Envoy 1.16.4 " + errTooOld},
+		"1.16.5":  {expectErr: "Envoy 1.16.5 " + errTooOld},
+		"1.16.6":  {expectErr: "Envoy 1.16.6 " + errTooOld},
+		"1.17.4":  {expectErr: "Envoy 1.17.4 " + errTooOld},
+		"1.18.6":  {expectErr: "Envoy 1.18.6 " + errTooOld},
+		"1.19.5":  {expectErr: "Envoy 1.19.5 " + errTooOld},
+		"1.20.7":  {expectErr: "Envoy 1.20.7 " + errTooOld},
+		"1.21.5":  {expectErr: "Envoy 1.21.5 " + errTooOld},
+		"1.22.0":  {expectErr: "Envoy 1.22.0 " + errTooOld},
+		"1.22.1":  {expectErr: "Envoy 1.22.1 " + errTooOld},
+		"1.22.2":  {expectErr: "Envoy 1.22.2 " + errTooOld},
+		"1.22.3":  {expectErr: "Envoy 1.22.3 " + errTooOld},
+		"1.22.4":  {expectErr: "Envoy 1.22.4 " + errTooOld},
+		"1.22.5":  {expectErr: "Envoy 1.22.5 " + errTooOld},
+		"1.22.6":  {expectErr: "Envoy 1.22.6 " + errTooOld},
+		"1.22.7":  {expectErr: "Envoy 1.22.7 " + errTooOld},
+		"1.22.8":  {expectErr: "Envoy 1.22.8 " + errTooOld},
+		"1.22.9":  {expectErr: "Envoy 1.22.9 " + errTooOld},
+		"1.22.10": {expectErr: "Envoy 1.22.10 " + errTooOld},
+		"1.22.11": {expectErr: "Envoy 1.22.11 " + errTooOld},
 	}
 
 	// Insert a bunch of valid versions.
@@ -139,10 +151,9 @@ func TestDetermineSupportedProxyFeaturesFromString(t *testing.T) {
 	}
 	*/
 	for _, v := range []string{
-		"1.22.0", "1.22.1", "1.22.2", "1.22.3", "1.22.4", "1.22.5", "1.22.6", "1.22.7", "1.22.8", "1.22.9", "1.22.10", "1.22.11",
 		"1.23.0", "1.23.1", "1.23.2", "1.23.3", "1.23.4", "1.23.5", "1.23.6", "1.23.7", "1.23.8",
 		"1.24.0", "1.24.1", "1.24.2", "1.24.3", "1.24.4", "1.24.5", "1.24.6",
-		"1.25.0", "1.25.1", "1.25.2", "1.25.3", "1.25.4",
+		"1.25.0", "1.25.1", "1.25.2", "1.25.3", "1.25.4", "1.26.0",
 	} {
 		cases[v] = testcase{expect: SupportedProxyFeatures{}}
 	}
@@ -152,6 +163,7 @@ func TestDetermineSupportedProxyFeaturesFromString(t *testing.T) {
 		t.Run(name, func(t *testing.T) {
 			sf, err := DetermineSupportedProxyFeaturesFromString(name)
 			if tc.expectErr == "" {
+				require.NoError(t, err)
 				require.Equal(t, tc.expect, sf)
 			} else {
 				testutil.RequireErrorContains(t, err, tc.expectErr)
diff --git a/envoyextensions/xdscommon/proxysupport.go b/envoyextensions/xdscommon/proxysupport.go
index c4a96e818..ff4b79d73 100644
--- a/envoyextensions/xdscommon/proxysupport.go
+++ b/envoyextensions/xdscommon/proxysupport.go
@@ -12,10 +12,10 @@ import "strings"
 //
 // see: https://www.consul.io/docs/connect/proxies/envoy#supported-versions
 var EnvoyVersions = []string{
+	"1.26.0",
 	"1.25.4",
 	"1.24.6",
 	"1.23.8",
-	"1.22.11",
 }
 
 // UnsupportedEnvoyVersions lists any unsupported Envoy versions (mainly minor versions) that fall