diff --git a/channels-rke2.yaml b/channels-rke2.yaml
index b9cf7d9a7..faa144c6d 100644
--- a/channels-rke2.yaml
+++ b/channels-rke2.yaml
@@ -1375,7 +1375,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.25.13+rke2r1
     minChannelServerVersion: v2.7.2-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: &serverArgs-v1-25-13-rke2r1
       <<: *serverArgs-v1-24-2-rke2r1
       tls-san-security:
@@ -1398,7 +1398,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.25.15+rke2r2
     minChannelServerVersion: v2.7.2-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: &serverArgs-v1-25-15-rke2r2
       <<: *serverArgs-v1-25-13-rke2r1
       kube-cloud-controller-manager-arg:
@@ -1437,7 +1437,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.25.16+rke2r1
     minChannelServerVersion: v2.7.2-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v1-25-15-rke2r2
     agentArgs: *agentArgs-v1-25-15-rke2r2
     charts: &charts-v1-25-16-rke2r1
@@ -1529,7 +1529,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.8+rke2r1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: &serverArgs-v1-26-8-rke2r1
       <<: *serverArgs-v1-24-2-rke2r1
       tls-san-security:
@@ -1552,7 +1552,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.10+rke2r2
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: &serverArgs-v1-26-10-rke2r2
       <<: *serverArgs-v1-26-8-rke2r1
       kube-cloud-controller-manager-arg:
@@ -1584,7 +1584,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.11+rke2r1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v1-26-10-rke2r2
     agentArgs: *agentArgs-v1-25-15-rke2r2
     charts: &charts-v1-26-11-rke2r1
@@ -1604,7 +1604,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.13+rke2r1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v1-26-10-rke2r2
     agentArgs: *agentArgs-v1-25-15-rke2r2
     charts: &charts-v1-26-13-rke2r1
@@ -1621,7 +1621,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.14+rke2r1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: &serverArgs-v1-26-14-rke2r1
       <<: *serverArgs-v1-26-10-rke2r2
       cni:
@@ -1668,7 +1668,7 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.15+rke2r1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v1-26-14-rke2r1
     agentArgs: *agentArgs-v1-25-15-rke2r2
     charts: &charts-v1-26-15-rke2r1
diff --git a/channels.yaml b/channels.yaml
index e7033e9dd..66192e008 100644
--- a/channels.yaml
+++ b/channels.yaml
@@ -445,19 +445,19 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.25.13+k3s1
     minChannelServerVersion: v2.7.2-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v6
     agentArgs: *agentArgs-v3
     featureVersions: *featureVersions-v1
   - version: v1.25.15+k3s2
     minChannelServerVersion: v2.7.2-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v6
     agentArgs: *agentArgs-v3
     featureVersions: *featureVersions-v1
   - version: v1.25.16+k3s4
     minChannelServerVersion: v2.7.2-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v6
     agentArgs: &agentArgs-v4
       <<: *agentArgs-v3
@@ -484,25 +484,25 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.8+k3s1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v6
     agentArgs: *agentArgs-v3
     featureVersions: *featureVersions-v1
   - version: v1.26.10+k3s2
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v6
     agentArgs: *agentArgs-v3
     featureVersions: *featureVersions-v1
   - version: v1.26.11+k3s2
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v6
     agentArgs: *agentArgs-v4
     featureVersions: *featureVersions-v1
   - version: v1.26.13+k3s2
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: &serverArgs-v7
       <<: *serverArgs-v6
       embedded-registry:
@@ -516,13 +516,13 @@ releases:
     featureVersions: *featureVersions-v1
   - version: v1.26.14+k3s1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v7
     agentArgs: *agentArgs-v5
     featureVersions: *featureVersions-v1
   - version: v1.26.15+k3s1
     minChannelServerVersion: v2.7.5-alpha1
-    maxChannelServerVersion: v2.9.99
+    maxChannelServerVersion: v2.8.99
     serverArgs: *serverArgs-v7
     agentArgs: *agentArgs-v5
     featureVersions: *featureVersions-v1
diff --git a/data/data.json b/data/data.json
index 036d65cc9..47cd89cb5 100644
--- a/data/data.json
+++ b/data/data.json
@@ -14570,11 +14570,15 @@
   },
   "v1.25": {
    "minRKEVersion": "1.4.0-rc0",
-   "minRancherVersion": "2.7.2-patch0"
+   "maxRKEVersion": "1.5.99",
+   "minRancherVersion": "2.7.2-patch0",
+   "maxRancherVersion": "2.8.99"
   },
   "v1.26": {
    "minRKEVersion": "1.4.0-rc0",
-   "minRancherVersion": "2.7.5-patch0"
+   "maxRKEVersion": "1.5.99",
+   "minRancherVersion": "2.7.5-patch0",
+   "maxRancherVersion": "2.8.99"
   },
   "v1.27": {
    "minRKEVersion": "1.5.0-rc0",
@@ -23291,7 +23295,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.2-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -23459,7 +23463,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.2-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -23630,7 +23634,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.2-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -24281,7 +24285,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -24449,7 +24453,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -24620,7 +24624,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -24797,7 +24801,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -24977,7 +24981,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -25157,7 +25161,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "cluster-cidr": {
@@ -41081,7 +41085,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.2-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -41346,7 +41350,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.2-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -41614,7 +41618,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.2-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -42664,7 +42668,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -42929,7 +42933,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -43197,7 +43201,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -43465,7 +43469,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -43733,7 +43737,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "audit-policy-file": {
@@ -44002,7 +44006,7 @@
     "featureVersions": {
      "encryption-key-rotation": "2.0.0"
     },
-    "maxChannelServerVersion": "v2.9.99",
+    "maxChannelServerVersion": "v2.8.99",
     "minChannelServerVersion": "v2.7.5-alpha1",
     "serverArgs": {
      "audit-policy-file": {
diff --git a/pkg/rke/k8s_version_info.go b/pkg/rke/k8s_version_info.go
index a54e28ada..601a53e48 100644
--- a/pkg/rke/k8s_version_info.go
+++ b/pkg/rke/k8s_version_info.go
@@ -666,10 +666,14 @@ func loadK8sVersionInfo() map[string]v3.K8sVersionInfo {
 		"v1.25": {
 			MinRancherVersion: "2.7.2-patch0",
 			MinRKEVersion:     "1.4.0-rc0",
+			MaxRancherVersion: "2.8.99",
+			MaxRKEVersion:     "1.5.99",
 		},
 		"v1.26": {
 			MinRancherVersion: "2.7.5-patch0",
 			MinRKEVersion:     "1.4.0-rc0",
+			MaxRancherVersion: "2.8.99",
+			MaxRKEVersion:     "1.5.99",
 		},
 		"v1.27": {
 			MinRancherVersion: "2.8.0-patch0",