diff --git a/rules/mimir_alerts.yml b/rules/mimir_alerts.yml
index 9706361..6a5ff57 100644
--- a/rules/mimir_alerts.yml
+++ b/rules/mimir_alerts.yml
@@ -473,15 +473,30 @@ groups:
           severity: warning
   - name: gossip_alerts
     rules:
-      - alert: MimirGossipMembersMismatch
+      - alert: MimirGossipMembersTooHigh
         annotations:
           message:
-            Mimir instance {{ $labels.instance }} in {{ $labels.cluster }}/{{ $labels.namespace
-            }} sees incorrect number of gossip members.
-          runbook_url: https://grafana.com/docs/mimir/latest/operators-guide/mimir-runbooks/#mimirgossipmembersmismatch
+            One or more Mimir instances in {{ $labels.cluster }}/{{ $labels.namespace
+            }} consistently sees a higher than expected number of gossip members.
+          runbook_url: https://grafana.com/docs/mimir/latest/operators-guide/mimir-runbooks/#mimirgossipmemberstoohigh
         expr: |
-          avg by (cluster, namespace) (memberlist_client_cluster_members_count) != sum by (cluster, namespace) (up{job=~".+/(admin-api|alertmanager|compactor.*|distributor|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"})
-        for: 15m
+          max by (cluster, namespace) (memberlist_client_cluster_members_count)
+          >
+          (sum by (cluster, namespace) (up{job=~".+/(admin-api|alertmanager|compactor.*|distributor|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) + 10)
+        for: 20m
+        labels:
+          severity: warning
+      - alert: MimirGossipMembersTooLow
+        annotations:
+          message:
+            One or more Mimir instances in {{ $labels.cluster }}/{{ $labels.namespace
+            }} consistently sees a lower than expected number of gossip members.
+          runbook_url: https://grafana.com/docs/mimir/latest/operators-guide/mimir-runbooks/#mimirgossipmemberstoolow
+        expr: |
+          min by (cluster, namespace) (memberlist_client_cluster_members_count)
+          <
+          (sum by (cluster, namespace) (up{job=~".+/(admin-api|alertmanager|compactor.*|distributor|ingester.*|querier.*|ruler|ruler-querier.*|store-gateway.*|cortex|mimir|mimir-write.*|mimir-read.*|mimir-backend.*)"}) * 0.5)
+        for: 20m
         labels:
           severity: warning
   - name: etcd_alerts
@@ -905,6 +920,17 @@ groups:
         for: 1m
         labels:
           severity: warning
+      - alert: MimirCompactorSkippedBlocksWithOutOfOrderChunks
+        annotations:
+          message:
+            Mimir Compactor {{ $labels.instance }} in {{ $labels.cluster }}/{{
+            $labels.namespace }} has found and ignored blocks with out of order chunks.
+          runbook_url: https://grafana.com/docs/mimir/latest/operators-guide/mimir-runbooks/#mimircompactorskippedblockswithoutoforderchunks
+        expr: |
+          increase(cortex_compactor_blocks_marked_for_no_compaction_total{reason="block-index-out-of-order-chunk"}[5m]) > 1
+        for: 30m
+        labels:
+          severity: critical
   - name: mimir_autoscaling
     rules:
       - alert: MimirAutoscalerNotActive
@@ -915,18 +941,21 @@ groups:
           runbook_url: https://grafana.com/docs/mimir/latest/operators-guide/mimir-runbooks/#mimirautoscalernotactive
         expr: |
           (
-              kube_horizontalpodautoscaler_status_condition{condition="ScalingActive",status="false"}
-              # Match only Mimir namespaces.
-              * on(cluster, namespace) group_left max by(cluster, namespace) (cortex_build_info)
-              # Add "metric" label.
-              + on(cluster, namespace, horizontalpodautoscaler) group_right label_replace(kube_horizontalpodautoscaler_spec_target_metric*0, "metric", "$1", "metric_name", "(.+)")
-              > 0
+              label_replace((
+                kube_horizontalpodautoscaler_status_condition{condition="ScalingActive",status="false"}
+                # Match only Mimir namespaces.
+                * on(cluster, namespace) group_left max by(cluster, namespace) (cortex_build_info)
+                # Add "metric" label.
+                + on(cluster, namespace, horizontalpodautoscaler) group_right label_replace(kube_horizontalpodautoscaler_spec_target_metric*0, "metric", "$1", "metric_name", "(.+)")
+                > 0),
+                "scaledObject", "$1", "horizontalpodautoscaler", "keda-hpa-(.*)"
+              )
           )
           # Alert only if the scaling metric exists and is > 0. If the KEDA ScaledObject is configured to scale down 0,
           # then HPA ScalingActive may be false when expected to run 0 replicas. In this case, the scaling metric exported
           # by KEDA could not exist at all or being exposed with a value of 0.
-          and on (cluster, namespace, metric)
-          (label_replace(keda_metrics_adapter_scaler_metrics_value, "namespace", "$0", "exported_namespace", ".+") > 0)
+          and on (cluster, namespace, metric, scaledObject)
+          (label_replace(keda_scaler_metrics_value, "namespace", "$0", "exported_namespace", ".+") > 0)
         for: 1h
         labels:
           severity: critical
@@ -939,7 +968,7 @@ groups:
         expr: |
           (
               # Find KEDA scalers reporting errors.
-              label_replace(rate(keda_metrics_adapter_scaler_errors[5m]), "namespace", "$1", "exported_namespace", "(.*)")
+              label_replace(rate(keda_scaler_errors[5m]), "namespace", "$1", "exported_namespace", "(.*)")
               # Match only Mimir namespaces.
               * on(cluster, namespace) group_left max by(cluster, namespace) (cortex_build_info)
           )