diff --git a/Chart.lock b/Chart.lock
index 961e4fa..afc2440 100644
--- a/Chart.lock
+++ b/Chart.lock
@@ -8,5 +8,5 @@ dependencies:
 - name: redis
   repository: https://raw.githubusercontent.com/bitnami/charts/archive-full-index/bitnami
   version: 16.13.2
-digest: sha256:17ea58a3264aa22faff18215c4269f47dabae956d0df273c684972f356416193
-generated: "2022-08-08T21:44:18.0195364+02:00"
+digest: sha256:8be2c8069d65f295d0079bdda67c45691370f7bef73393c2e80eedbdd748b9af
+generated: "2024-01-19T13:45:12.079125474+01:00"
diff --git a/Chart.yaml b/Chart.yaml
index 1ebc973..0809c9a 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -15,12 +15,12 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 4.0.0
+version: 4.1.1
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
 # follow Semantic Versioning. They should reflect the version the application is using.
-appVersion: v4.0.2
+appVersion: v4.2.5
 
 dependencies:
   - name: elasticsearch
diff --git a/templates/_helpers.tpl b/templates/_helpers.tpl
index 6331a26..2c50146 100644
--- a/templates/_helpers.tpl
+++ b/templates/_helpers.tpl
@@ -31,12 +31,22 @@ Create chart name and version as used by the chart label.
 {{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
 {{- end }}
 
+{{/*
+Labels added on every Mastodon resource
+*/}}
+{{- define "mastodon.globalLabels" -}}
+{{- range $k, $v := .Values.mastodon.labels }}
+{{ $k }}: {{ quote $v }}
+{{- end -}}
+{{- end }}
+
 {{/*
 Common labels
 */}}
 {{- define "mastodon.labels" -}}
 helm.sh/chart: {{ include "mastodon.chart" . }}
 {{ include "mastodon.selectorLabels" . }}
+{{ include "mastodon.globalLabels" . }}
 {{- if .Chart.AppVersion }}
 app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
 {{- end }}
@@ -161,3 +171,16 @@ Find highest number of needed database connections to set DB_POOL variable
 {{- end }}
 {{- $poolSize | quote }}
 {{- end }}
+
+{{/*
+Full hostname for a custom Elasticsearch cluster
+*/}}
+{{- define "mastodon.elasticsearch.fullHostname" -}}
+{{- if not .Values.elasticsearch.enabled }}
+    {{- if .Values.elasticsearch.tls }}
+        {{- printf "https://%s" (tpl .Values.elasticsearch.hostname $) -}}
+    {{- else -}}
+        {{- printf "%s" (tpl .Values.elasticsearch.hostname $) -}}
+    {{- end }}
+{{- end -}}
+{{- end -}}
diff --git a/templates/_statsd.yaml b/templates/_statsd.yaml
new file mode 100644
index 0000000..410e4f1
--- /dev/null
+++ b/templates/_statsd.yaml
@@ -0,0 +1,54 @@
+{{/*
+  The exporter container attached to every Mastodon pod
+*/}}
+
+{{- define "mastodon.statsdExporterContainer" }}
+{{- with .Values.mastodon.metrics.statsd }}
+{{- if and .exporter.enabled (not .address) }}
+- name: statsd-exporter
+  image: prom/statsd-exporter
+  args:
+    - "--statsd.mapping-config=/statsd-mappings/mastodon.yml"
+  resources:
+    requests:
+      cpu: "0.1"
+      memory: "180M"
+    limits:
+      cpu: "0.5"
+      memory: "250M"
+  ports:
+    - name: statsd
+      containerPort: {{ .exporter.port }}
+  volumeMounts:
+    - name: statsd-mappings
+      mountPath: /statsd-mappings
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+  The volume needed for the container above
+*/}}
+{{- define "mastodon.statsdExporterVolume" }}
+{{- with .Values.mastodon.metrics.statsd }}
+{{- if and .exporter.enabled (not .address) }}
+- name: statsd-mappings
+  configMap:
+    name: {{ include "mastodon.fullname" $ }}-statsd-mappings
+    items:
+      - key: mastodon-statsd-mappings.yml
+        path: mastodon.yml
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+  Labels added to every statsd_exporter-enabled pod
+*/}}
+{{- define "mastodon.statsdExporterLabels" }}
+{{- with .Values.mastodon.metrics.statsd }}
+{{- if and .exporter.enabled (not .address) }}
+mastodon/statsd-exporter: "true"
+{{- end }}
+{{- end }}
+{{- end }}
diff --git a/templates/configmap-env.yaml b/templates/configmap-env.yaml
index fbb8788..f2d989e 100644
--- a/templates/configmap-env.yaml
+++ b/templates/configmap-env.yaml
@@ -15,12 +15,36 @@ data:
   DB_NAME: {{ .Values.postgresql.auth.database }}
   DB_POOL: {{ include "mastodon.maxDbPool" . }}
   DB_USER: {{ .Values.postgresql.auth.username }}
+  {{- if .Values.postgresql.readReplica.hostname }}
+  REPLICA_DB_HOST: {{ .Values.postgresql.readReplica.hostname }}
+  {{- end }}
+  {{- if .Values.postgresql.readReplica.port }}
+  REPLICA_DB_PORT: {{ .Values.postgresql.readReplica.port }}
+  {{- end }}
+  {{- if .Values.postgresql.readReplica.auth.database }}
+  REPLICA_DB_NAME: {{ .Values.postgresql.readReplica.auth.database }}
+  {{- end }}
+  {{- if .Values.postgresql.readReplica.auth.username }}
+  REPLICA_DB_USER: {{ .Values.postgresql.readReplica.auth.username }}
+  {{- end }}
+  {{- if .Values.postgresql.readReplica.auth.password }}
+  REPLICA_DB_PASS: {{ .Values.postgresql.readReplica.auth.password }}
+  {{- end }}
   PREPARED_STATEMENTS: {{ .Values.mastodon.preparedStatements | quote }}
   DEFAULT_LOCALE: {{ .Values.mastodon.locale }}
   {{- if .Values.elasticsearch.enabled }}
   ES_ENABLED: "true"
+  ES_PRESET: {{ .Values.elasticsearch.preset | default "single_node_cluster" | quote }}
   ES_HOST: {{ template "mastodon.elasticsearch.fullname" . }}-master-hl
   ES_PORT: "9200"
+  {{- else if .Values.elasticsearch.hostname }}
+  ES_ENABLED: "true"
+  ES_PRESET: {{ .Values.elasticsearch.preset | default "single_node_cluster" | quote }}
+  ES_HOST: {{ include "mastodon.elasticsearch.fullHostname" .}}
+  ES_PORT: {{ .Values.elasticsearch.port | default "9200" | quote }}
+  {{- end }}
+  {{- with .Values.elasticsearch.user }}
+  ES_USER: {{ . }}
   {{- end }}
   LOCAL_DOMAIN: {{ .Values.mastodon.local_domain }}
   {{- with .Values.mastodon.web_domain }}
@@ -325,6 +349,31 @@ data:
   LDAP_UID_CONVERSION_REPLACE: {{ . }}
   {{- end }}
   {{- end }}
-  {{- with .Values.mastodon.metrics.statsd.address }}
-  STATSD_ADDR: {{ . }}
+  {{- if .Values.mastodon.metrics.statsd.address }}
+  STATSD_ADDR: {{ .Values.mastodon.metrics.statsd.address }}
+  {{- else if .Values.mastodon.metrics.statsd.exporter.enabled }}
+  STATSD_ADDR: localhost:9125
+  {{- end }}
+  {{- range $k, $v := .Values.mastodon.extraEnvVars }}
+  {{ $k }}: {{ quote $v }}
+  {{- end }}
+
+  {{- if .Values.mastodon.deepl.enabled }}
+  DEEPL_PLAN: {{ .Values.mastodon.deepl.plan }}
+  {{- end }}
+
+  {{- if .Values.mastodon.hcaptcha.enabled }}
+  HCAPTCHA_SITE_KEY: {{ .Values.mastodon.hcaptcha.siteId }}
+  {{- end }}
+
+  {{- if .Values.mastodon.cacheBuster.enabled }}
+  CACHE_BUSTER_ENABLED: "true"
+    {{- if .Values.mastodon.cacheBuster.httpMethod }}
+  CACHE_BUSTER_HTTP_METHOD: {{ .Values.mastodon.cacheBuster.httpMethod }}
+    {{- end }}
+    {{- if .Values.mastodon.cacheBuster.authHeader }}
+  CACHE_BUSTER_SECRET_HEADER: {{ .Values.mastodon.cacheBuster.authHeader }}
+    {{- end }}
+  {{- else }}
+  CACHE_BUSTER_ENABLED: "false"
   {{- end }}
diff --git a/templates/cronjob-media-remove.yaml b/templates/cronjob-media-remove.yaml
index d70afeb..33229a8 100644
--- a/templates/cronjob-media-remove.yaml
+++ b/templates/cronjob-media-remove.yaml
@@ -65,6 +65,13 @@ spec:
                     secretKeyRef:
                       name: {{ template "mastodon.redis.secretName" . }}
                       key: redis-password
+                {{- if and .Values.elasticsearch.existingSecret (or .Values.elasticsearch.enabled .Values.elasticsearch.hostname) }}
+                - name: "ES_PASS"
+                  valueFrom:
+                    secretKeyRef:
+                      name: {{ .Values.elasticsearch.existingSecret }}
+                      key: password
+                {{- end }}
                 - name: "PORT"
                   value: {{ .Values.mastodon.web.port | quote }}
                 {{- if (and .Values.mastodon.s3.enabled .Values.mastodon.s3.existingSecret) }}
diff --git a/templates/deployment-sidekiq.yaml b/templates/deployment-sidekiq.yaml
index 8b1a014..cb98dc2 100644
--- a/templates/deployment-sidekiq.yaml
+++ b/templates/deployment-sidekiq.yaml
@@ -22,6 +22,7 @@ spec:
     type: Recreate
   {{- end }}
   replicas: {{ .replicas }}
+  revisionHistoryLimit: 2
   selector:
     matchLabels:
       {{- include "mastodon.selectorLabels" $context | nindent 6 }}
@@ -35,9 +36,11 @@ spec:
         {{- end }}
         # roll the pods to pick up any db migrations or other changes
         {{- include "mastodon.rollingPodAnnotations" $context | nindent 8 }}
-        checksum/config-secrets: {{ include ( print $.Template.BasePath "/secret-smtp.yaml" ) $context | sha256sum | quote }}
+        checksum/config-secrets-smtp: {{ include ( print $.Template.BasePath "/secret-smtp.yaml" ) $context | sha256sum | quote }}
       labels:
+        {{- include "mastodon.globalLabels" $context | nindent 8 }}
         {{- include "mastodon.selectorLabels" $context | nindent 8 }}
+        {{- include "mastodon.statsdExporterLabels" $context | nindent 8 }}
         app.kubernetes.io/component: sidekiq-{{ .name }}
         app.kubernetes.io/part-of: rails
     spec:
@@ -54,8 +57,12 @@ spec:
       affinity:
         {{- toYaml . | nindent 8 }}
       {{- end }}
-      {{- if (not $context.Values.mastodon.s3.enabled) }}
+      {{- with (default (default $context.Values.topologySpreadConstraints $context.Values.mastodon.sidekiq.topologySpreadConstraints) .topologySpreadConstraints) }}
+      topologySpreadConstraints:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       volumes:
+      {{- if (not $context.Values.mastodon.s3.enabled) }}
         - name: assets
           persistentVolumeClaim:
             claimName: {{ template "mastodon.fullname" $context }}-assets
@@ -63,11 +70,20 @@ spec:
           persistentVolumeClaim:
             claimName: {{ template "mastodon.fullname" $context }}-system
       {{- end }}
+      {{- include "mastodon.statsdExporterVolume" $ | indent 8 }}
+      {{- if dig "customDatabaseConfigYml" "configMapRef" "name" false . }}
+        - name: config-database-yml
+          configMap:
+            name: {{ .customDatabaseConfigYml.configMapRef.name }}
+      {{- end }}
+      {{- with $context.Values.volumes }}
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ $context.Chart.Name }}
           securityContext:
             {{- toYaml $context.Values.mastodon.sidekiq.securityContext | nindent 12 }}
-          image: "{{ $context.Values.image.repository }}:{{ $context.Values.image.tag | default $context.Chart.AppVersion }}"
+          image: "{{ coalesce (dig "image" "repository" false .) $context.Values.image.repository }}:{{ coalesce (dig "image" "tag" false .) $context.Values.image.tag $context.Chart.AppVersion }}"
           imagePullPolicy: {{ $context.Values.image.pullPolicy }}
           command:
             - bundle
@@ -94,11 +110,25 @@ spec:
                 secretKeyRef:
                   name: {{ template "mastodon.postgresql.secretName" $context }}
                   key: password
+            {{- if $context.Values.postgresql.readReplica.auth.existingSecret }}
+            - name: "REPLICA_DB_PASS"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ $context.Values.postgresql.readReplica.auth.existingSecret }}
+                  key: password
+            {{- end }}
             - name: "REDIS_PASSWORD"
               valueFrom:
                 secretKeyRef:
                   name: {{ template "mastodon.redis.secretName" $context }}
                   key: redis-password
+            {{- if and $context.Values.elasticsearch.existingSecret (or $context.Values.elasticsearch.enabled $context.Values.elasticsearch.hostname) }}
+            - name: "ES_PASS"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ $context.Values.elasticsearch.existingSecret }}
+                  key: password
+            {{- end }}
             - name: "SMTP_LOGIN"
               valueFrom:
                 secretKeyRef:
@@ -122,15 +152,38 @@ spec:
                   name: {{ $context.Values.mastodon.s3.existingSecret }}
                   key: AWS_ACCESS_KEY_ID
             {{- end }}
-          {{- if (not $context.Values.mastodon.s3.enabled) }}
+            {{- if and $context.Values.mastodon.deepl.enabled }}
+            - name: "DEEPL_API_KEY"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ $context.Values.mastodon.deepl.apiKeySecretRef.name }}
+                  key: {{ $context.Values.mastodon.deepl.apiKeySecretRef.key }}
+            {{- end }}
+            {{- if and $context.Values.mastodon.cacheBuster.enabled $context.Values.mastodon.cacheBuster.authToken.existingSecret }}
+            - name: CACHE_BUSTER_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: {{ $context.Values.mastodon.cacheBuster.authToken.existingSecret }}
+                  key: password
+            {{- end }}
           volumeMounts:
+          {{- if (not $context.Values.mastodon.s3.enabled) }}
             - name: assets
               mountPath: /opt/mastodon/public/assets
             - name: system
               mountPath: /opt/mastodon/public/system
           {{- end }}
+          {{- if dig "customDatabaseConfigYml" "configMapRef" "name" false . }}
+            - name: config-database-yml
+              mountPath: /opt/mastodon/config/database.yml
+              subPath: {{ .customDatabaseConfigYml.configMapRef.key }}
+          {{- end }}
+          {{- with $context.Values.volumeMounts }}
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
           resources:
             {{- toYaml (default (default $context.Values.resources $context.Values.mastodon.sidekiq.resources) .resources) | nindent 12 }}
+      {{- include "mastodon.statsdExporterContainer" $ | indent 8 }}
       {{- with $context.Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
diff --git a/templates/deployment-streaming.yaml b/templates/deployment-streaming.yaml
index 704ebe1..b3c26bd 100644
--- a/templates/deployment-streaming.yaml
+++ b/templates/deployment-streaming.yaml
@@ -10,6 +10,7 @@ metadata:
     {{- end }}
 spec:
   replicas: {{ .Values.mastodon.streaming.replicas }}
+  revisionHistoryLimit: 2
   selector:
     matchLabels:
       {{- include "mastodon.selectorLabels" . | nindent 6 }}
@@ -23,6 +24,7 @@ spec:
         # roll the pods to pick up any db migrations or other changes
         {{- include "mastodon.rollingPodAnnotations" . | nindent 8 }}
       labels:
+        {{- include "mastodon.globalLabels" . | nindent 8 }}
         {{- include "mastodon.selectorLabels" . | nindent 8 }}
         app.kubernetes.io/component: streaming
     spec:
@@ -41,7 +43,7 @@ spec:
           securityContext:
             {{- toYaml . | nindent 12 }}
           {{- end }}
-          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          image: "{{ coalesce .Values.mastodon.streaming.image.repository .Values.image.repository }}:{{ coalesce .Values.mastodon.streaming.image.tag .Values.image.tag .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           command:
             - node
@@ -59,6 +61,13 @@ spec:
                 secretKeyRef:
                   name: {{ template "mastodon.postgresql.secretName" . }}
                   key: password
+            {{- if .Values.postgresql.readReplica.auth.existingSecret }}
+            - name: "REPLICA_DB_PASS"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.postgresql.readReplica.auth.existingSecret }}
+                  key: password
+            {{- end }}
             - name: "REDIS_PASSWORD"
               valueFrom:
                 secretKeyRef:
@@ -90,6 +99,10 @@ spec:
       affinity:
         {{- toYaml . | nindent 8 }}
       {{- end }}
+      {{- with (default .Values.topologySpreadConstraints .Values.mastodon.streaming.topologySpreadConstraints) }}
+      topologySpreadConstraints:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       {{- with .Values.tolerations }}
       tolerations:
         {{- toYaml . | nindent 8 }}
diff --git a/templates/deployment-web.yaml b/templates/deployment-web.yaml
index 5e4dcfe..28490a7 100644
--- a/templates/deployment-web.yaml
+++ b/templates/deployment-web.yaml
@@ -10,6 +10,7 @@ metadata:
     {{- end }}
 spec:
   replicas: {{ .Values.mastodon.web.replicas }}
+  revisionHistoryLimit: 2
   selector:
     matchLabels:
       {{- include "mastodon.selectorLabels" . | nindent 6 }}
@@ -24,7 +25,9 @@ spec:
         # roll the pods to pick up any db migrations or other changes
         {{- include "mastodon.rollingPodAnnotations" . | nindent 8 }}
       labels:
+        {{- include "mastodon.globalLabels" . | nindent 8 }}
         {{- include "mastodon.selectorLabels" . | nindent 8 }}
+        {{- include "mastodon.statsdExporterLabels" . | nindent 8 }}
         app.kubernetes.io/component: web
         app.kubernetes.io/part-of: rails
     spec:
@@ -37,8 +40,8 @@ spec:
       securityContext:
         {{- toYaml . | nindent 8 }}
       {{- end }}
-      {{- if (not .Values.mastodon.s3.enabled) }}
       volumes:
+      {{- if (not .Values.mastodon.s3.enabled) }}
         - name: assets
           persistentVolumeClaim:
             claimName: {{ template "mastodon.fullname" . }}-assets
@@ -46,13 +49,22 @@ spec:
           persistentVolumeClaim:
             claimName: {{ template "mastodon.fullname" . }}-system
       {{- end }}
+      {{- include "mastodon.statsdExporterVolume" $ | indent 8 }}
+      {{- if .Values.mastodon.web.customDatabaseConfigYml.configMapRef.name }}
+        - name: config-database-yml
+          configMap:
+            name: {{ .Values.mastodon.web.customDatabaseConfigYml.configMapRef.name }}
+      {{- end }}
+      {{- with .Values.volumes }}
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ .Chart.Name }}-web
           {{- with (default .Values.securityContext .Values.mastodon.web.securityContext) }}
           securityContext:
             {{- toYaml . | nindent 12 }}
           {{- end }}
-          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          image: "{{ coalesce .Values.mastodon.web.image.repository .Values.image.repository }}:{{ coalesce .Values.mastodon.web.image.tag .Values.image.tag .Chart.AppVersion }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           command:
             - bundle
@@ -75,11 +87,25 @@ spec:
                 secretKeyRef:
                   name: {{ template "mastodon.postgresql.secretName" . }}
                   key: password
+            {{- if .Values.postgresql.readReplica.auth.existingSecret }}
+            - name: "REPLICA_DB_PASS"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.postgresql.readReplica.auth.existingSecret}}
+                  key: password
+            {{- end }}
             - name: "REDIS_PASSWORD"
               valueFrom:
                 secretKeyRef:
                   name: {{ template "mastodon.redis.secretName" . }}
                   key: redis-password
+            {{- if and .Values.elasticsearch.existingSecret (or .Values.elasticsearch.enabled .Values.elasticsearch.hostname) }}
+            - name: "ES_PASS"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.elasticsearch.existingSecret }}
+                  key: password
+            {{- end }}
             - name: "PORT"
               value: {{ .Values.mastodon.web.port | quote }}
             {{- if .Values.mastodon.web.minThreads }}
@@ -110,13 +136,42 @@ spec:
                   name: {{ .Values.mastodon.s3.existingSecret }}
                   key: AWS_ACCESS_KEY_ID
             {{- end }}
-          {{- if (not .Values.mastodon.s3.enabled) }}
+            {{- if .Values.mastodon.deepl.enabled }}
+            - name: "DEEPL_API_KEY"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.mastodon.deepl.apiKeySecretRef.name }}
+                  key: {{ .Values.mastodon.deepl.apiKeySecretRef.key }}
+            {{- end }}
+            {{- if .Values.mastodon.hcaptcha.enabled }}
+            - name: "HCAPTCHA_SECRET_KEY"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.mastodon.hcaptcha.secretKeySecretRef.name }}
+                  key: {{ .Values.mastodon.hcaptcha.secretKeySecretRef.key }}
+            {{- end }}
+            {{- if and .Values.mastodon.cacheBuster.enabled .Values.mastodon.cacheBuster.authToken.existingSecret }}
+            - name: CACHE_BUSTER_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.mastodon.cacheBuster.authToken.existingSecret }}
+                  key: password
+            {{- end }}
           volumeMounts:
+          {{- if (not .Values.mastodon.s3.enabled) }}
             - name: assets
               mountPath: /opt/mastodon/public/assets
             - name: system
               mountPath: /opt/mastodon/public/system
           {{- end }}
+          {{- if .Values.mastodon.web.customDatabaseConfigYml.configMapRef.name }}
+            - name: config-database-yml
+              mountPath: /opt/mastodon/config/database.yml
+              subPath: {{ .Values.mastodon.web.customDatabaseConfigYml.configMapRef.key }}
+          {{- end }}
+          {{- with .Values.volumeMounts }}
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
           ports:
             - name: http
               containerPort: {{ .Values.mastodon.web.port }}
@@ -138,6 +193,7 @@ spec:
           resources:
             {{- toYaml . | nindent 12 }}
           {{- end }}
+        {{- include "mastodon.statsdExporterContainer" $ | indent 8 }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
@@ -146,7 +202,11 @@ spec:
       affinity:
         {{- toYaml . | nindent 8 }}
       {{- end }}
-      {{- with .Values.tolerations }}
+      {{- with (default .Values.topologySpreadConstraints .Values.mastodon.web.topologySpreadConstraints) }}
+      topologySpreadConstraints:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with (default .Values.tolerations .Values.mastodon.web.tolerations) }}
       tolerations:
         {{- toYaml . | nindent 8 }}
       {{- end }}
diff --git a/templates/ingress-streaming.yml b/templates/ingress-streaming.yml
new file mode 100644
index 0000000..4e3ad72
--- /dev/null
+++ b/templates/ingress-streaming.yml
@@ -0,0 +1,57 @@
+{{- if .Values.ingress.streaming.enabled -}}
+{{- $fullName := include "mastodon.fullname" . -}}
+{{- $webPort := .Values.mastodon.web.port -}}
+{{- $streamingPort := .Values.mastodon.streaming.port -}}
+{{- if or (.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress") (not (.Capabilities.APIVersions.Has "networking.k8s.io/v1beta1/Ingress")) -}}
+apiVersion: networking.k8s.io/v1
+{{- else if semverCompare ">=1.14-0" .Capabilities.KubeVersion.GitVersion -}}
+apiVersion: networking.k8s.io/v1beta1
+{{- else -}}
+apiVersion: extensions/v1beta1
+{{- end }}
+kind: Ingress
+metadata:
+  name: {{ $fullName }}-streaming
+  labels:
+    {{- include "mastodon.labels" . | nindent 4 }}
+  {{- with .Values.ingress.streaming.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if .Values.ingress.streaming.ingressClassName }}
+  ingressClassName: {{ .Values.ingress.streaming.ingressClassName }}
+  {{- end }}
+  {{- if .Values.ingress.streaming.tls }}
+  tls:
+    {{- range .Values.ingress.streaming.tls }}
+    - hosts:
+        {{- range .hosts }}
+        - {{ . | quote }}
+        {{- end }}
+      secretName: {{ .secretName }}
+    {{- end }}
+  {{- end }}
+  rules:
+    {{- range .Values.ingress.streaming.hosts }}
+    - host: {{ .host | quote }}
+      http:
+        paths:
+          {{- range .paths }}
+          - path: {{ .path }}api/v1/streaming
+            backend:
+              {{- if or ($.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress") (not ($.Capabilities.APIVersions.Has "networking.k8s.io/v1beta1/Ingress")) }}
+              service:
+                name: {{ $fullName }}-streaming
+                port:
+                  number: {{ $streamingPort }}
+              {{- else }}
+              serviceName: {{ $fullName }}-streaming
+              servicePort: {{ $streamingPort }}
+              {{- end }}
+            {{- if or ($.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress") (not ($.Capabilities.APIVersions.Has "networking.k8s.io/v1beta1/Ingress")) }}
+            pathType: Prefix
+            {{- end }}
+          {{- end }}
+    {{- end }}
+{{- end }}
diff --git a/templates/ingress.yaml b/templates/ingress.yaml
index 5a3409a..3da46ab 100644
--- a/templates/ingress.yaml
+++ b/templates/ingress.yaml
@@ -52,6 +52,7 @@ spec:
             {{- if or ($.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress") (not ($.Capabilities.APIVersions.Has "networking.k8s.io/v1beta1/Ingress")) }}
             pathType: Prefix
             {{- end }}
+          {{- if not $.Values.ingress.streaming.enabled }}
           - path: {{ .path }}api/v1/streaming
             backend:
               {{- if or ($.Capabilities.APIVersions.Has "networking.k8s.io/v1/Ingress") (not ($.Capabilities.APIVersions.Has "networking.k8s.io/v1beta1/Ingress")) }}
@@ -67,5 +68,6 @@ spec:
             pathType: Prefix
             {{- end }}
           {{- end }}
+          {{- end }}
     {{- end }}
 {{- end }}
diff --git a/templates/job-assets-precompile.yaml b/templates/job-assets-precompile.yaml
index bc5ff7b..3458fea 100644
--- a/templates/job-assets-precompile.yaml
+++ b/templates/job-assets-precompile.yaml
@@ -1,3 +1,4 @@
+{{- if .Values.mastodon.hooks.assetsPrecompile.enabled -}}
 apiVersion: batch/v1
 kind: Job
 metadata:
@@ -75,3 +76,4 @@ spec:
             - name: system
               mountPath: /opt/mastodon/public/system
           {{- end }}
+{{- end -}}
diff --git a/templates/job-chewy-upgrade.yaml b/templates/job-chewy-upgrade.yaml
index f86a4e3..33e9bf9 100644
--- a/templates/job-chewy-upgrade.yaml
+++ b/templates/job-chewy-upgrade.yaml
@@ -67,6 +67,13 @@ spec:
                 secretKeyRef:
                   name: {{ template "mastodon.redis.secretName" . }}
                   key: redis-password
+            {{- if and .Values.elasticsearch.existingSecret (or .Values.elasticsearch.enabled .Values.elasticsearch.hostname) }}
+            - name: "ES_PASS"
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.elasticsearch.existingSecret }}
+                  key: password
+            {{- end }}
             - name: "PORT"
               value: {{ .Values.mastodon.web.port | quote }}
           {{- if (not .Values.mastodon.s3.enabled) }}
diff --git a/templates/job-db-migrate.yaml b/templates/job-db-migrate.yaml
index 41324fb..e9a40a7 100644
--- a/templates/job-db-migrate.yaml
+++ b/templates/job-db-migrate.yaml
@@ -1,3 +1,4 @@
+{{- if .Values.mastodon.hooks.dbMigrate.enabled -}}
 apiVersion: batch/v1
 kind: Job
 metadata:
@@ -75,3 +76,4 @@ spec:
             - name: system
               mountPath: /opt/mastodon/public/system
           {{- end }}
+{{- end -}}
diff --git a/templates/pvc-assets.yaml b/templates/pvc-assets.yaml
index 36d5558..46c90ca 100644
--- a/templates/pvc-assets.yaml
+++ b/templates/pvc-assets.yaml
@@ -7,7 +7,7 @@ metadata:
     {{- include "mastodon.labels" . | nindent 4 }}
 spec:
   accessModes:
-    - {{ .Values.mastodon.persistence.system.accessMode }}
+    - {{ .Values.mastodon.persistence.assets.accessMode }}
   {{- with .Values.mastodon.persistence.assets.resources }}
   resources:
     {{- toYaml . | nindent 4 }}
diff --git a/templates/statsd-exporter-mappings.yaml b/templates/statsd-exporter-mappings.yaml
new file mode 100644
index 0000000..813af1d
--- /dev/null
+++ b/templates/statsd-exporter-mappings.yaml
@@ -0,0 +1,107 @@
+{{- if and .Values.mastodon.metrics.statsd.exporter.enabled (not .Values.mastodon.metrics.statsd.address) }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "mastodon.fullname" . }}-statsd-mappings
+  labels:
+    {{- include "mastodon.labels" . | nindent 4 }}
+data:
+  mastodon-statsd-mappings.yml: |-
+    ## From https://ipng.ch/assets/mastodon/statsd-mapping.yaml
+    ## Prometheus Statsd Exporter mapping for Mastodon 4.0+
+    ##
+    ## Version 1.0, November 2022
+    ##
+    ## Documentation: https://ipng.ch/s/articles/2022/11/27/mastodon-3.html
+
+    mappings:
+      ## Web collector
+      - match: Mastodon\.production\.web\.(.+)\.(.+)\.(.+)\.status\.(.+)
+        match_type: regex
+        name: "mastodon_controller_status"
+        labels:
+          controller: $1
+          action: $2
+          format: $3
+          status: $4
+          mastodon: "web"
+      - match: Mastodon\.production\.web\.(.+)\.(.+)\.(.+)\.db_time
+        match_type: regex
+        name: "mastodon_controller_db_time"
+        labels:
+          controller: $1
+          action: $2
+          format: $3
+          mastodon: "web"
+      - match: Mastodon\.production\.web\.(.+)\.(.+)\.(.+)\.view_time
+        match_type: regex
+        name: "mastodon_controller_view_time"
+        labels:
+          controller: $1
+          action: $2
+          format: $3
+          mastodon: "web"
+      - match: Mastodon\.production\.web\.(.+)\.(.+)\.(.+)\.total_duration
+        match_type: regex
+        name: "mastodon_controller_duration"
+        labels:
+          controller: $1
+          action: $2
+          format: $3
+          mastodon: "web"
+
+      ## Database collector
+      - match: Mastodon\.production\.db\.tables\.(.+)\.queries\.(.+)\.duration
+        match_type: regex
+        name: "mastodon_db_operation"
+        labels:
+          table: "$1"
+          operation: "$2"
+          mastodon: "db"
+
+      ## Cache collector
+      - match: Mastodon\.production\.cache\.(.+)\.duration
+        match_type: regex
+        name: "mastodon_cache_duration"
+        labels:
+          operation: "$1"
+          mastodon: "cache"
+
+      ## Sidekiq collector
+      - match: Mastodon\.production\.sidekiq\.(.+)\.processing_time
+        match_type: regex
+        name: "mastodon_sidekiq_worker_processing_time"
+        labels:
+          worker: "$1"
+          mastodon: "sidekiq"
+      - match: Mastodon\.production\.sidekiq\.(.+)\.success
+        match_type: regex
+        name: "mastodon_sidekiq_worker_success_total"
+        labels:
+          worker: "$1"
+          mastodon: "sidekiq"
+      - match: Mastodon\.production\.sidekiq\.(.+)\.failure
+        match_type: regex
+        name: "mastodon_sidekiq_worker_failure_total"
+        labels:
+          worker: "$1"
+          mastodon: "sidekiq"
+      - match: Mastodon\.production\.sidekiq\.queues\.(.+)\.enqueued
+        match_type: regex
+        name: "mastodon_sidekiq_queue_enqueued"
+        labels:
+          queue: "$1"
+          mastodon: "sidekiq"
+      - match: Mastodon\.production\.sidekiq\.queues\.(.+)\.latency
+        match_type: regex
+        name: "mastodon_sidekiq_queue_latency"
+        labels:
+          queue: "$1"
+          mastodon: "sidekiq"
+      - match: Mastodon\.production\.sidekiq\.(.+)
+        match_type: regex
+        name: "mastodon_sidekiq_$1"
+        labels:
+          mastodon: "sidekiq"
+
+{{- end }}
diff --git a/values.yaml b/values.yaml
index fa53bab..8378928 100644
--- a/values.yaml
+++ b/values.yaml
@@ -6,11 +6,14 @@ image:
   # built from the most recent commit
   #
   # tag: latest
-  tag: ""
+  tag: "v4.2.5"
   # use `Always` when using `latest` tag
   pullPolicy: IfNotPresent
 
 mastodon:
+  # Labels added to every Mastodon-related object
+  labels: {}
+
   # -- create an initial administrator user; the password is autogenerated and will
   # have to be reset
   createAdmin:
@@ -20,6 +23,13 @@ mastodon:
     username: not_gargron
     # @ignored
     email: not@example.com
+  hooks:
+    dbMigrate:
+      enabled: true
+    assetsPrecompile:
+      enabled: true
+  # Custom labels to add to kubernetes resources
+  #labels:
   cron:
     # -- run `tootctl media remove` every week
     removeMedia:
@@ -38,7 +48,7 @@ mastodon:
   singleUserMode: false
   # -- Enables "Secure Mode" for more details see: https://docs.joinmastodon.org/admin/config/#authorized_fetch
   authorizedFetch: false
-  # -- Enables "Limited Federation Mode" for more detauls see: https://docs.joinmastodon.org/admin/config/#limited_federation_mode
+  # -- Enables "Limited Federation Mode" for more details see: https://docs.joinmastodon.org/admin/config/#limited_federation_mode
   limitedFederationMode: false
   persistence:
     assets:
@@ -68,6 +78,18 @@ mastodon:
     permission: ""
     # -- If you have a caching proxy, enter its base URL here.
     alias_host: ""
+  deepl:
+    enabled: false
+    plan:
+    apiKeySecretRef:
+      name:
+      key:
+  hcaptcha:
+    enabled: false
+    siteId:
+    secretKeySecretRef:
+      name:
+      key:
   # these must be set manually; autogenerated keys are rotated on each upgrade
   secrets:
     secret_key_base: ""
@@ -88,6 +110,8 @@ mastodon:
     resources: {}
     # -- Affinity for all Sidekiq Deployments unless overwritten, overwrites .Values.affinity
     affinity: {}
+    # -- Topology spread constraints for Sidekiq Pods, overwrites .Values.topologySpreadConstraints
+    topologySpreadConstraints: {}
     # limits:
     #   cpu: "1"
     #   memory: 768Mi
@@ -95,24 +119,35 @@ mastodon:
     #   cpu: 250m
     #   memory: 512Mi
     workers:
-    - name: all-queues
-      # -- Number of threads / parallel sidekiq jobs that are executed per Pod
-      concurrency: 25
-      # -- Number of Pod replicas deployed by the Deployment
-      replicas: 1
-      # -- Resources for this specific deployment to allow optimised scaling, overwrites .Values.mastodon.sidekiq.resources
-      resources: {}
-      # -- Affinity for this specific deployment, overwrites .Values.affinity and .Values.mastodon.sidekiq.affinity
-      affinity: {}
-      # -- Sidekiq queues for Mastodon that are handled by this worker. See https://docs.joinmastodon.org/admin/scaling/#concurrency
-      # See https://github.com/mperham/sidekiq/wiki/Advanced-Options#queues for how to weight queues as argument
-      queues:
-        - default,8
-        - push,6
-        - ingress,4
-        - mailers,2
-        - pull
-        - scheduler # Make sure the scheduler queue only exists once and with a worker that has 1 replica.
+      - name: all-queues
+        # -- Number of threads / parallel sidekiq jobs that are executed per Pod
+        concurrency: 25
+        # -- Number of Pod replicas deployed by the Deployment
+        replicas: 1
+        # -- Resources for this specific deployment to allow optimised scaling, overwrites .Values.mastodon.sidekiq.resources
+        resources: {}
+        # -- Affinity for this specific deployment, overwrites .Values.affinity and .Values.mastodon.sidekiq.affinity
+        affinity: {}
+        # -- Topology spread constraints for this specific deployment, overwrites .Values.topologySpreadConstraints and .Values.mastodon.sidekiq.topologySpreadConstraints
+        topologySpreadConstraints: {}
+        # -- Sidekiq queues for Mastodon that are handled by this worker. See https://docs.joinmastodon.org/admin/scaling/#concurrency
+        # See https://github.com/mperham/sidekiq/wiki/Advanced-Options#queues for how to weight queues as argument
+        queues:
+          - default,8
+          - push,6
+          - ingress,4
+          - mailers,2
+          - pull
+          - scheduler # Make sure the scheduler queue only exists once and with a worker that has 1 replica.
+        image:
+          repository:
+          tag:
+        # allows you to mount a custom database.yml from a configmap
+        # please note that we do not advise using a read-only replica for sidekiq workers
+        customDatabaseConfigYml:
+          configMapRef:
+            name:
+            key:
     #- name: push-pull
     #  concurrency: 50
     #  resources: {}
@@ -135,7 +170,7 @@ mastodon:
     ca_file: /etc/ssl/certs/ca-certificates.crt
     delivery_method: smtp
     domain:
-    enable_starttls: 'auto'
+    enable_starttls: "auto"
     from_address: notifications@example.com
     return_path:
     openssl_verify_mode: peer
@@ -149,6 +184,9 @@ mastodon:
     # password must be located in keys named `login` and `password` respectively.
     existingSecret:
   streaming:
+    image:
+      repository:
+      tag:
     port: 4000
     # -- this should be set manually since os.cpus() returns the number of CPUs on
     # the node running the pod, which is unrelated to the resources allocated to
@@ -161,6 +199,8 @@ mastodon:
     replicas: 1
     # -- Affinity for Streaming Pods, overwrites .Values.affinity
     affinity: {}
+    # -- Topology spread constraints for Streaming Pods, overwrites .Values.topologySpreadConstraints
+    topologySpreadConstraints: {}
     # -- Pod Security Context for Streaming Pods, overwrites .Values.podSecurityContext
     podSecurityContext: {}
     # -- (Streaming Container) Security Context for Streaming Pods, overwrites .Values.securityContext
@@ -179,6 +219,8 @@ mastodon:
     replicas: 1
     # -- Affinity for Web Pods, overwrites .Values.affinity
     affinity: {}
+    # -- Topology spread constraints for Web Pods, overwrites .Values.topologySpreadConstraints
+    topologySpreadConstraints: {}
     # -- Pod Security Context for Web Pods, overwrites .Values.podSecurityContext
     podSecurityContext: {}
     # -- (Web Container) Security Context for Web Pods, overwrites .Values.securityContext
@@ -197,20 +239,51 @@ mastodon:
     maxThreads: "5"
     workers: "2"
     persistentTimeout: "20"
+    image:
+      repository:
+      tag:
+    # allows you to mount a custom database.yml from a configmap
+    # for example if you want to use a read-only replica
+    customDatabaseConfigYml:
+      configMapRef:
+        name:
+        key:
+
+  # HTTP cache buster configuration.
+  # See the documentation for more information about this feature:
+  # https://docs.joinmastodon.org/admin/config/#http-cache-buster
+  cacheBuster:
+    enabled: false
+    httpMethod: "GET"
+    # If the cache service requires authentication, specify the header name and
+    # secret/token here.
+    authHeader:
+    authToken:
+      existingSecret:
 
   metrics:
     statsd:
       # -- Enable statsd publishing via STATSD_ADDR environment variable
       address: ""
+      # -- Alternatively, you can use this to have a statsd_exporter sidecar container running along all Mastodon containers and exposing metrics in OpenMetric/Prometheus format on each pod
+      #   Please note the exporter will not be enabled if metrics.statsd.address is not empty
+      exporter:
+        enabled: false
+        port: 9102
 
   # Sets the PREPARED_STATEMENTS environment variable: https://docs.joinmastodon.org/admin/config/#prepared_statements
   preparedStatements: true
 
+
   # Specify extra environment variables to be added to all Mastodon pods.
   # These can be used for configuration not included in this chart (including configuration for Mastodon varietals.)
+  extraEnvVars: {}
+  
+  # Alternatively specify extra environment variables stored in a ConfigMap.
   # The specified ConfigMap should contain the additional environment variables in key-value format.
   # extraEnvFrom: <config-map-name>
 
+
 ingress:
   enabled: true
   annotations:
@@ -231,25 +304,54 @@ ingress:
   hosts:
     - host: mastodon.local
       paths:
-        - path: '/'
+        - path: "/"
   tls:
     - secretName: mastodon-tls
       hosts:
         - mastodon.local
 
+  # This allows you to have a separate ingress for streaming
+  # When enabled, the main ingress will no longer handle streaming requests.
+  # You will also need to configure mastodon.streaming.base_url accordingly
+  streaming:
+    enabled: false
+    annotations:
+    ingressClassName:
+    hosts:
+      - host: streaming.mastodon.local
+        paths:
+          - path: "/"
+    tls:
+      - secretName: mastodon-tls
+        hosts:
+          - streaming.mastodon.local
+
 # -- https://github.com/bitnami/charts/tree/master/bitnami/elasticsearch#parameters
 elasticsearch:
-  # `false` will disable full-text search
+  # Elasticsearch is powering full-text search. It is optional.
+
+  # `false` will not install Elasticsearch as part of this chart
   #
   # if you enable ES after the initial install, you will need to manually run
   # RAILS_ENV=production bundle exec rake chewy:sync
   # (https://docs.joinmastodon.org/admin/optional/elasticsearch/)
-  # @ignored
   enabled: true
   # @ignored
   image:
     tag: 7
 
+  # If you are using an external ES cluster, use `enabled: false` and set the hostname, port,
+  # and whether the cluster uses TLS.
+  # hostname:
+  # port: 9200
+  # tls: true
+  # preset: single_node_cluster
+
+  # This is optional, use it if you ES cluster requires authentication
+  # user:
+  # Name of an existing secret with a password key
+  # existingSecret:
+
 # https://github.com/bitnami/charts/tree/master/bitnami/postgresql#parameters
 postgresql:
   # -- disable if you want to use an existing db; in which case the values below
@@ -272,6 +374,20 @@ postgresql:
     # with a key of password set to the password you want
     existingSecret: ""
 
+  # Options for a read-only replica.
+  # If enabled, mastodon uses existing defaults for postgres for these values as well.
+  # NOTE: This feature is only available on Mastodon v4.2+
+  # Documentation for more information on this feature:
+  # https://docs.joinmastodon.org/admin/scaling/#read-replicas
+  readReplica:
+    hostname:
+    port:
+    auth:
+      database:
+      username:
+      password:
+      existingSecret:
+
 # https://github.com/bitnami/charts/tree/master/bitnami/redis#parameters
 redis:
   # disable if you want to use an existing redis instance; in which case the
@@ -286,6 +402,8 @@ redis:
     # you can also specify the name of an existing Secret
     # with a key of redis-password set to the password you want
     # existingSecret: ""
+  replica:
+    replicaCount: 0
 
 # @ignored
 service:
@@ -450,3 +568,15 @@ tolerations: []
 
 # -- Affinity for all pods unless overwritten
 affinity: {}
+
+# -- Topology Spread Constraints for all pods unless overwritten
+# Please note that you need to use `matchLabelKeys` (Kubernetes 1.25+) if you
+# want to spread each deployment independently, or override topologySpreadConstraints
+# for each deployment
+topologySpreadConstraints: {}
+
+# Default volume mounts for all pods
+volumeMounts: []
+
+# Default volumes for all pods
+volumes: []