diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e3d727e..b8fddc84 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## master / unreleased
 
+## 3.4.0 / 2026-09-21
+
 * [FEATURE] Add remote-write OTLP endpoint in nginx #667
 * [FEATURE] Add support for zone-aware replication ([Migration Instructions](https://cortexproject.github.io/cortex-helm-chart/guides/migrate_to_zone_aware_replication.html)) #668
 * [BUGFIX] CI: Add grafana helm repository #671
diff --git a/Chart.yaml b/Chart.yaml
index dd9809fb..48cb9bbe 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v2
-version: 3.3.8
+version: 3.4.0
 appVersion: v1.21.1
 description: 'Horizontally scalable, highly available, multi-tenant, long term Prometheus.'
 home: https://cortexmetrics.io/
diff --git a/README.md b/README.md
index 5fa37f81..53243545 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 # cortex
 
-![Version: 3.3.8](https://img.shields.io/badge/Version-3.3.8-informational?style=flat-square) ![AppVersion: v1.21.1](https://img.shields.io/badge/AppVersion-v1.21.1-informational?style=flat-square)
+![Version: 3.4.0](https://img.shields.io/badge/Version-3.4.0-informational?style=flat-square) ![AppVersion: v1.21.1](https://img.shields.io/badge/AppVersion-v1.21.1-informational?style=flat-square)
 
 Horizontally scalable, highly available, multi-tenant, long term Prometheus.
 
diff --git a/docs/cortex-3.4.0.tgz b/docs/cortex-3.4.0.tgz
new file mode 100644
index 00000000..92c51479
Binary files /dev/null and b/docs/cortex-3.4.0.tgz differ
diff --git a/docs/index.yaml b/docs/index.yaml
index 3f38e85b..db9a74b9 100644
--- a/docs/index.yaml
+++ b/docs/index.yaml
@@ -3,7 +3,59 @@ entries:
   cortex:
   - apiVersion: v2
     appVersion: v1.21.1
-    created: "2026-08-17T18:39:04.438424468Z"
+    created: "2026-09-21T13:51:03.665419375Z"
+    dependencies:
+    - alias: memcached-frontend
+      condition: memcached-frontend.enabled
+      name: memcached
+      repository: https://charts.bitnami.com/bitnami
+      version: 6.14.0
+    - alias: memcached-blocks-index
+      condition: memcached-blocks-index.enabled
+      name: memcached
+      repository: https://charts.bitnami.com/bitnami
+      version: 6.14.0
+    - alias: memcached-blocks
+      condition: memcached-blocks.enabled
+      name: memcached
+      repository: https://charts.bitnami.com/bitnami
+      version: 6.14.0
+    - alias: memcached-blocks-metadata
+      condition: memcached-blocks-metadata.enabled
+      name: memcached
+      repository: https://charts.bitnami.com/bitnami
+      version: 6.14.0
+    - alias: memcached-parquet-labels
+      condition: memcached-parquet-labels.enabled
+      name: memcached
+      repository: https://charts.bitnami.com/bitnami
+      version: 6.14.0
+    - condition: rollout_operator.enabled
+      name: rollout-operator
+      repository: https://grafana.github.io/helm-charts
+      version: 0.51.1
+    description: Horizontally scalable, highly available, multi-tenant, long term
+      Prometheus.
+    digest: 58ce1b401679647f483ed242d7800bcaf21b567611c9414c0ecfa4405faf8e57
+    home: https://cortexmetrics.io/
+    icon: https://avatars2.githubusercontent.com/u/43045022?s=200&v=4
+    kubeVersion: ^1.19.0-0
+    maintainers:
+    - email: thayward@infoblox.com
+      name: Tom Hayward
+      url: https://github.com/kd7lxl
+    - email: niclas.schad@stackit.cloud
+      name: Niclas Schad
+      url: https://github.com/nschad
+    name: cortex
+    sources:
+    - https://github.com/cortexproject/cortex-helm-chart
+    urls:
+    - https://cortexproject.github.io/cortex-helm-chart/cortex-3.4.0.tgz
+    version: 3.4.0
+  - apiVersion: v2
+    appVersion: v1.21.1
+    created: "2026-09-21T13:51:03.658733307Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -51,7 +103,7 @@ entries:
     version: 3.3.8
   - apiVersion: v2
     appVersion: v1.21.1
-    created: "2026-08-17T18:39:04.432312622Z"
+    created: "2026-09-21T13:51:03.652840403Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -99,7 +151,7 @@ entries:
     version: 3.3.7
   - apiVersion: v2
     appVersion: v1.21.1
-    created: "2026-08-17T18:39:04.426233404Z"
+    created: "2026-09-21T13:51:03.646946888Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -147,7 +199,7 @@ entries:
     version: 3.3.6
   - apiVersion: v2
     appVersion: v1.21.1
-    created: "2026-08-17T18:39:04.420082009Z"
+    created: "2026-09-21T13:51:03.640953245Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -195,7 +247,7 @@ entries:
     version: 3.3.5
   - apiVersion: v2
     appVersion: v1.21.1
-    created: "2026-08-17T18:39:04.413945105Z"
+    created: "2026-09-21T13:51:03.635029152Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -243,7 +295,7 @@ entries:
     version: 3.3.4
   - apiVersion: v2
     appVersion: v1.21.1
-    created: "2026-08-17T18:39:04.408061218Z"
+    created: "2026-09-21T13:51:03.62917806Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -291,7 +343,7 @@ entries:
     version: 3.3.3
   - apiVersion: v2
     appVersion: v1.21.1
-    created: "2026-08-17T18:39:04.401458236Z"
+    created: "2026-09-21T13:51:03.623271327Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -339,7 +391,7 @@ entries:
     version: 3.3.2
   - apiVersion: v2
     appVersion: v1.21.0
-    created: "2026-08-17T18:39:04.39585422Z"
+    created: "2026-09-21T13:51:03.617220124Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -387,7 +439,7 @@ entries:
     version: 3.3.1
   - apiVersion: v2
     appVersion: v1.21.0
-    created: "2026-08-17T18:39:04.39000844Z"
+    created: "2026-09-21T13:51:03.611365661Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -435,7 +487,7 @@ entries:
     version: 3.3.0
   - apiVersion: v2
     appVersion: v1.20.1
-    created: "2026-08-17T18:39:04.383055462Z"
+    created: "2026-09-21T13:51:03.605263732Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -478,7 +530,7 @@ entries:
     version: 3.2.1
   - apiVersion: v2
     appVersion: v1.20.1
-    created: "2026-08-17T18:39:04.377830331Z"
+    created: "2026-09-21T13:51:03.59936071Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -521,7 +573,7 @@ entries:
     version: 3.2.0
   - apiVersion: v2
     appVersion: v1.20.1
-    created: "2026-08-17T18:39:04.371688354Z"
+    created: "2026-09-21T13:51:03.59336025Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -564,7 +616,7 @@ entries:
     version: 3.1.0
   - apiVersion: v2
     appVersion: v1.20.0
-    created: "2026-08-17T18:39:04.365592402Z"
+    created: "2026-09-21T13:51:03.587422538Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -607,7 +659,7 @@ entries:
     version: 3.0.0
   - apiVersion: v2
     appVersion: v1.19.0
-    created: "2026-08-17T18:39:04.359513935Z"
+    created: "2026-09-21T13:51:03.581650653Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -650,7 +702,7 @@ entries:
     version: 2.6.0
   - apiVersion: v2
     appVersion: v1.18.1
-    created: "2026-08-17T18:39:04.353121396Z"
+    created: "2026-09-21T13:51:03.575981354Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -693,7 +745,7 @@ entries:
     version: 2.5.0
   - apiVersion: v2
     appVersion: v1.17.1
-    created: "2026-08-17T18:39:04.347794343Z"
+    created: "2026-09-21T13:51:03.570434056Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -736,7 +788,7 @@ entries:
     version: 2.4.0
   - apiVersion: v2
     appVersion: v1.16.0
-    created: "2026-08-17T18:39:04.342179607Z"
+    created: "2026-09-21T13:51:03.56503289Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -779,7 +831,7 @@ entries:
     version: 2.3.0
   - apiVersion: v2
     appVersion: v1.16.0
-    created: "2026-08-17T18:39:04.337159927Z"
+    created: "2026-09-21T13:51:03.559411599Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -822,7 +874,7 @@ entries:
     version: 2.2.0
   - apiVersion: v2
     appVersion: v1.14.1
-    created: "2026-08-17T18:39:04.331726596Z"
+    created: "2026-09-21T13:51:03.553989612Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -865,7 +917,7 @@ entries:
     version: 2.1.0
   - apiVersion: v2
     appVersion: v1.14.1
-    created: "2026-08-17T18:39:04.327087728Z"
+    created: "2026-09-21T13:51:03.548614Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -908,7 +960,7 @@ entries:
     version: 2.0.1
   - apiVersion: v2
     appVersion: v1.14.0
-    created: "2026-08-17T18:39:04.321691393Z"
+    created: "2026-09-21T13:51:03.543342373Z"
     dependencies:
     - alias: memcached-frontend
       condition: memcached-frontend.enabled
@@ -948,7 +1000,7 @@ entries:
     version: 2.0.0
   - apiVersion: v2
     appVersion: v1.13.0
-    created: "2026-08-17T18:39:04.316199569Z"
+    created: "2026-09-21T13:51:03.538011723Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1009,7 +1061,7 @@ entries:
     version: 1.7.0
   - apiVersion: v2
     appVersion: v1.11.1
-    created: "2026-08-17T18:39:04.310842803Z"
+    created: "2026-09-21T13:51:03.532867586Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1070,7 +1122,7 @@ entries:
     version: 1.6.0
   - apiVersion: v2
     appVersion: v1.11.1
-    created: "2026-08-17T18:39:04.305510337Z"
+    created: "2026-09-21T13:51:03.527699486Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1131,7 +1183,7 @@ entries:
     version: 1.5.1
   - apiVersion: v2
     appVersion: v1.11.1
-    created: "2026-08-17T18:39:04.300308275Z"
+    created: "2026-09-21T13:51:03.522676443Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1192,7 +1244,7 @@ entries:
     version: 1.5.0
   - apiVersion: v2
     appVersion: v1.11.1
-    created: "2026-08-17T18:39:04.295251085Z"
+    created: "2026-09-21T13:51:03.517831381Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1253,7 +1305,7 @@ entries:
     version: 1.4.0
   - apiVersion: v2
     appVersion: v1.11.0
-    created: "2026-08-17T18:39:04.290280743Z"
+    created: "2026-09-21T13:51:03.512509Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1314,7 +1366,7 @@ entries:
     version: 1.3.0
   - apiVersion: v2
     appVersion: v1.11.0
-    created: "2026-08-17T18:39:04.285949213Z"
+    created: "2026-09-21T13:51:03.507137065Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1375,7 +1427,7 @@ entries:
     version: 1.2.0
   - apiVersion: v2
     appVersion: v1.10.0
-    created: "2026-08-17T18:39:04.281117047Z"
+    created: "2026-09-21T13:51:03.502134481Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1436,7 +1488,7 @@ entries:
     version: 1.1.0
   - apiVersion: v2
     appVersion: v1.10.0
-    created: "2026-08-17T18:39:04.275947128Z"
+    created: "2026-09-21T13:51:03.497244327Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1497,7 +1549,7 @@ entries:
     version: 1.0.1
   - apiVersion: v2
     appVersion: v1.10.0
-    created: "2026-08-17T18:39:04.271014238Z"
+    created: "2026-09-21T13:51:03.492384484Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1558,7 +1610,7 @@ entries:
     version: 1.0.0
   - apiVersion: v2
     appVersion: v1.10.0
-    created: "2026-08-17T18:39:04.26610371Z"
+    created: "2026-09-21T13:51:03.487185397Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1619,7 +1671,7 @@ entries:
     version: 0.7.0
   - apiVersion: v2
     appVersion: v1.9.0
-    created: "2026-08-17T18:39:04.261221165Z"
+    created: "2026-09-21T13:51:03.482778766Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1676,7 +1728,7 @@ entries:
     version: 0.6.0
   - apiVersion: v2
     appVersion: v1.9.0
-    created: "2026-08-17T18:39:04.256885679Z"
+    created: "2026-09-21T13:51:03.478058685Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1733,7 +1785,7 @@ entries:
     version: 0.5.0
   - apiVersion: v2
     appVersion: v1.7.0
-    created: "2026-08-17T18:39:04.253383654Z"
+    created: "2026-09-21T13:51:03.474604376Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1789,7 +1841,7 @@ entries:
     version: 0.4.1
   - apiVersion: v2
     appVersion: v1.7.0
-    created: "2026-08-17T18:39:04.249494562Z"
+    created: "2026-09-21T13:51:03.471320362Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1845,7 +1897,7 @@ entries:
     version: 0.4.0
   - apiVersion: v2
     appVersion: v1.6.0
-    created: "2026-08-17T18:39:04.246196136Z"
+    created: "2026-09-21T13:51:03.468547279Z"
     dependencies:
     - alias: memcached
       condition: memcached.enabled
@@ -1899,4 +1951,37 @@ entries:
     urls:
     - https://cortexproject.github.io/cortex-helm-chart/cortex-0.3.0.tgz
     version: 0.3.0
-generated: "2026-08-17T18:39:04.242099866Z"
+  - apiVersion: v2
+    appVersion: v1.4.0
+    created: "2026-09-21T13:51:03.465642318Z"
+    dependencies:
+    - alias: memcached
+      condition: memcached.enabled
+      name: memcached
+      repository: https://kubernetes-charts.storage.googleapis.com/
+      version: 3.2.3
+    - alias: memcached-index-read
+      condition: memcached-index-read.enabled
+      name: memcached
+      repository: https://kubernetes-charts.storage.googleapis.com/
+      version: 3.2.3
+    - alias: memcached-index-write
+      condition: memcached-index-write.enabled
+      name: memcached
+      repository: https://kubernetes-charts.storage.googleapis.com/
+      version: 3.2.3
+    description: Cortex
+    digest: f3c06fb19af521cd0daf02e5aaf8236d622df3f372fb8d3237a1103ecc0b810e
+    home: https://cortexmetrics.io/
+    icon: https://avatars2.githubusercontent.com/u/43045022?s=200&v=4
+    kubeVersion: ^1.10.0-0
+    maintainers:
+    - email: cortex-team@googlegroups.com
+      name: Cortex Maintainers
+    name: cortex
+    sources:
+    - https://github.com/cortexproject/cortex-helm-chart
+    urls:
+    - https://cortexproject.github.io/cortex-helm-chart/cortex-0.2.0.tgz
+    version: 0.2.0
+generated: "2026-09-21T13:51:03.45904533Z"