diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a12e8f37dd7..94310e648120 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,8 +7,22 @@ This document contains a historical list of changes between releases. Only
 changes that impact end-user behavior are listed; changes to documentation or
 internal API changes are not present.
 
-Main (unreleased)
------------------
+v0.30.2 (2023-01-11)
+--------------------
+
+### Bugfixes
+
+- Flow: `prometheus.relabel` will no longer modify the labels of the original
+  metrics, which could lead to the incorrect application of relabel rules on
+  subsequent relabels. (@rfratto)
+
+- Flow: `loki.source.file` will no longer deadlock other components if log
+  lines cannot be sent to Loki. `loki.source.file` will wait for 5 seconds per
+  file to finish flushing read logs to the client, after which it will drop
+  them, resulting in lost logs. (@rfratto)
+
+- Operator: Fix the handling of the enableHttp2 field as a boolean in
+  `pod_monitor` and `service_monitor` templates. (@tpaschalis)
 
 v0.30.1 (2022-12-23)
 --------------------
diff --git a/component/common/loki/types.go b/component/common/loki/types.go
index 5b287756a133..f78333e1eab2 100644
--- a/component/common/loki/types.go
+++ b/component/common/loki/types.go
@@ -5,7 +5,9 @@ package loki
 // to relabeling, stages and finally batched in a client to be written to Loki.
 
 import (
+	"context"
 	"sync"
+	"time"
 
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/common/model"
@@ -13,6 +15,14 @@ import (
 	"github.com/grafana/loki/pkg/logproto"
 )
 
+// finalEntryTimeout is how long NewEntryMutatorHandler will wait before giving
+// up on sending the final log entry. If this timeout is reached, the final log
+// entry is permanently lost.
+//
+// This timeout can only be reached if the loki.write client is backlogged due
+// to an outage or erroring (such as limits being hit).
+const finalEntryTimeout = 5 * time.Second
+
 // LogsReceiver is an alias for chan Entry which will be used for component
 // communication
 type LogsReceiver chan Entry
@@ -77,17 +87,53 @@ func NewEntryHandler(entries chan<- Entry, stop func()) EntryHandler {
 
 // NewEntryMutatorHandler creates a EntryHandler that mutates incoming entries from another EntryHandler.
 func NewEntryMutatorHandler(next EntryHandler, f EntryMutatorFunc) EntryHandler {
-	in, wg, once := make(chan Entry), sync.WaitGroup{}, sync.Once{}
-	nextChan := next.Chan()
+	var (
+		ctx, cancel = context.WithCancel(context.Background())
+
+		in       = make(chan Entry)
+		nextChan = next.Chan()
+	)
+
+	var wg sync.WaitGroup
 	wg.Add(1)
+
 	go func() {
 		defer wg.Done()
+		defer cancel()
+
 		for e := range in {
-			nextChan <- f(e)
+			select {
+			case <-ctx.Done():
+				// This is a hard stop to the reading goroutine. Anything not forwarded
+				// to nextChan at this point will probably be permanently lost, since
+				// the positions file has likely already updated to a byte offset past
+				// the read entry.
+				//
+				// TODO(rfratto): revisit whether this logic is necessary after we have
+				// a WAL for logs.
+				return
+			case nextChan <- f(e):
+				// no-op; log entry has been queued for sending.
+			}
 		}
 	}()
+
+	var closeOnce sync.Once
 	return NewEntryHandler(in, func() {
-		once.Do(func() { close(in) })
+		closeOnce.Do(func() {
+			close(in)
+
+			select {
+			case <-ctx.Done():
+				// The goroutine above exited on its own so we don't have to wait for
+				// the timeout.
+			case <-time.After(finalEntryTimeout):
+				// We reached the timeout for sending the final entry to nextChan;
+				// request a hard stop from the reading goroutine.
+				cancel()
+			}
+		})
+
 		wg.Wait()
 	})
 }
diff --git a/component/prometheus/relabel/relabel.go b/component/prometheus/relabel/relabel.go
index 0ead7ee15bc0..2ea87c6bebd6 100644
--- a/component/prometheus/relabel/relabel.go
+++ b/component/prometheus/relabel/relabel.go
@@ -173,7 +173,9 @@ func (c *Component) relabel(val float64, lbls labels.Labels) labels.Labels {
 			relabelled = newLbls.labels
 		}
 	} else {
-		relabelled = relabel.Process(lbls, c.mrc...)
+		// Relabel against a copy of the labels to prevent modifying the original
+		// slice.
+		relabelled = relabel.Process(lbls.Copy(), c.mrc...)
 		c.cacheMisses.Inc()
 		c.cacheSize.Inc()
 		c.addToCache(globalRef, relabelled)
diff --git a/docs/sources/configuration/integrations/node-exporter-config.md b/docs/sources/configuration/integrations/node-exporter-config.md
index da340241cb1c..5edcecf73ae5 100644
--- a/docs/sources/configuration/integrations/node-exporter-config.md
+++ b/docs/sources/configuration/integrations/node-exporter-config.md
@@ -28,7 +28,7 @@ docker run \
   -v "/proc:/host/proc:ro,rslave" \
   -v /tmp/agent:/etc/agent \
   -v /path/to/config.yaml:/etc/agent-config/agent.yaml \
-  grafana/agent:v0.30.1 \
+  grafana/agent:v0.30.2 \
   --config.file=/etc/agent-config/agent.yaml
 ```
 
@@ -67,7 +67,7 @@ metadata:
   name: agent
 spec:
   containers:
-  - image: grafana/agent:v0.30.0
+  - image: grafana/agent:v0.30.2
     name: agent
     args:
     - --config.file=/etc/agent-config/agent.yaml
diff --git a/docs/sources/configuration/integrations/process-exporter-config.md b/docs/sources/configuration/integrations/process-exporter-config.md
index 4b8e358cf304..386b25f937d2 100644
--- a/docs/sources/configuration/integrations/process-exporter-config.md
+++ b/docs/sources/configuration/integrations/process-exporter-config.md
@@ -20,7 +20,7 @@ docker run \
   -v "/proc:/proc:ro" \
   -v /tmp/agent:/etc/agent \
   -v /path/to/config.yaml:/etc/agent-config/agent.yaml \
-  grafana/agent:v0.30.1 \
+  grafana/agent:v0.30.2 \
   --config.file=/etc/agent-config/agent.yaml
 ```
 
@@ -37,7 +37,7 @@ metadata:
   name: agent
 spec:
   containers:
-  - image: grafana/agent:v0.30.1
+  - image: grafana/agent:v0.30.2
     name: agent
     args:
     - --config.file=/etc/agent-config/agent.yaml
diff --git a/docs/sources/operator/custom-resource-quickstart.md b/docs/sources/operator/custom-resource-quickstart.md
index 559d3869d32c..4c09526e3115 100644
--- a/docs/sources/operator/custom-resource-quickstart.md
+++ b/docs/sources/operator/custom-resource-quickstart.md
@@ -45,7 +45,7 @@ metadata:
   labels:
     app: grafana-agent
 spec:
-  image: grafana/agent:v0.30.1
+  image: grafana/agent:v0.30.2
   logLevel: info
   serviceAccountName: grafana-agent
   metrics:
diff --git a/docs/sources/operator/getting-started.md b/docs/sources/operator/getting-started.md
index 8ed2c4d53f4d..0969e4880beb 100644
--- a/docs/sources/operator/getting-started.md
+++ b/docs/sources/operator/getting-started.md
@@ -74,7 +74,7 @@ spec:
       serviceAccountName: grafana-agent-operator
       containers:
       - name: operator
-        image: grafana/agent-operator:v0.30.1
+        image: grafana/agent-operator:v0.30.2
         args:
         - --kubelet-service=default/kubelet
 ---
diff --git a/docs/sources/set-up/install-agent-docker.md b/docs/sources/set-up/install-agent-docker.md
index c9af58b7d2a5..fe8f9153c5f5 100644
--- a/docs/sources/set-up/install-agent-docker.md
+++ b/docs/sources/set-up/install-agent-docker.md
@@ -21,7 +21,7 @@ Install Grafana Agent and get it up and running on Docker.
 docker run \
   -v /tmp/agent:/etc/agent/data \
   -v /path/to/config.yaml:/etc/agent/agent.yaml \
-  grafana/agent:v0.30.1
+  grafana/agent:v0.30.2
 ```
 
 2.  Replace `/tmp/agent` with the folder you want to store WAL data in.
diff --git a/pkg/operator/config/templates/component/metrics/pod_monitor.libsonnet b/pkg/operator/config/templates/component/metrics/pod_monitor.libsonnet
index 58cca2e7df3a..dbf3b30c859c 100644
--- a/pkg/operator/config/templates/component/metrics/pod_monitor.libsonnet
+++ b/pkg/operator/config/templates/component/metrics/pod_monitor.libsonnet
@@ -63,7 +63,7 @@ function(
   proxy_url: optionals.string(endpoint.ProxyURL),
   params: optionals.object(endpoint.Params),
   scheme: optionals.string(endpoint.Scheme),
-  enable_http2: optionals.string(endpoint.EnableHttp2),
+  enable_http2: optionals.bool(endpoint.EnableHttp2),
 
   // NOTE(rfratto): unlike ServiceMonitor, pod monitors explicitly use
   // SafeTLSConfig.
diff --git a/pkg/operator/config/templates/component/metrics/service_monitor.libsonnet b/pkg/operator/config/templates/component/metrics/service_monitor.libsonnet
index 98ed9e53e2f6..99ccedff3fed 100644
--- a/pkg/operator/config/templates/component/metrics/service_monitor.libsonnet
+++ b/pkg/operator/config/templates/component/metrics/service_monitor.libsonnet
@@ -63,7 +63,7 @@ function(
   proxy_url: optionals.string(endpoint.ProxyURL),
   params: optionals.object(endpoint.Params),
   scheme: optionals.string(endpoint.Scheme),
-  enable_http2: optionals.string(endpoint.EnableHttp2),
+  enable_http2: optionals.bool(endpoint.EnableHttp2),
 
   tls_config:
     if endpoint.TLSConfig != null then new_tls_config(meta.Namespace, endpoint.TLSConfig),
diff --git a/pkg/operator/defaults.go b/pkg/operator/defaults.go
index 639df5c73b0f..9bd66bbf1eb1 100644
--- a/pkg/operator/defaults.go
+++ b/pkg/operator/defaults.go
@@ -35,6 +35,7 @@ var (
 		"v0.29.0",
 		"v0.30.0",
 		"v0.30.1",
+		"v0.30.2",
 		// NOTE(rfratto): when performing an upgrade, add the newest version above instead of changing the existing reference.
 	}
 
diff --git a/production/grafanacloud-install.sh b/production/grafanacloud-install.sh
index a5e0f04a4833..951893cf12db 100755
--- a/production/grafanacloud-install.sh
+++ b/production/grafanacloud-install.sh
@@ -50,7 +50,7 @@ PACKAGE_SYSTEM=${PACKAGE_SYSTEM:=}
 #
 # Global constants.
 #
-RELEASE_VERSION="v0.30.1"
+RELEASE_VERSION="v0.30.2"
 
 # The DEB and RPM urls don't include the `v` version prefix in the file names,
 # so we trim it out using ${RELEASE_VERSION#v} below.
diff --git a/production/kubernetes/agent-bare.yaml b/production/kubernetes/agent-bare.yaml
index fc382932cb11..d9c900033e98 100644
--- a/production/kubernetes/agent-bare.yaml
+++ b/production/kubernetes/agent-bare.yaml
@@ -84,7 +84,7 @@ spec:
           valueFrom:
             fieldRef:
               fieldPath: spec.nodeName
-        image: grafana/agent:v0.30.1
+        image: grafana/agent:v0.30.2
         imagePullPolicy: IfNotPresent
         name: grafana-agent
         ports:
diff --git a/production/kubernetes/agent-loki.yaml b/production/kubernetes/agent-loki.yaml
index e0b59852ef27..584c817657f3 100644
--- a/production/kubernetes/agent-loki.yaml
+++ b/production/kubernetes/agent-loki.yaml
@@ -66,7 +66,7 @@ spec:
           valueFrom:
             fieldRef:
               fieldPath: spec.nodeName
-        image: grafana/agent:v0.30.1
+        image: grafana/agent:v0.30.2
         imagePullPolicy: IfNotPresent
         name: grafana-agent-logs
         ports:
diff --git a/production/kubernetes/agent-traces.yaml b/production/kubernetes/agent-traces.yaml
index 556b4c3ad6e2..71c6f4e7a0ac 100644
--- a/production/kubernetes/agent-traces.yaml
+++ b/production/kubernetes/agent-traces.yaml
@@ -115,7 +115,7 @@ spec:
           valueFrom:
             fieldRef:
               fieldPath: spec.nodeName
-        image: grafana/agent:v0.30.1
+        image: grafana/agent:v0.30.2
         imagePullPolicy: IfNotPresent
         name: grafana-agent-traces
         ports:
diff --git a/production/kubernetes/build/lib/version.libsonnet b/production/kubernetes/build/lib/version.libsonnet
index 00a5b8eea4b2..0e9bb7c0d238 100644
--- a/production/kubernetes/build/lib/version.libsonnet
+++ b/production/kubernetes/build/lib/version.libsonnet
@@ -1 +1 @@
-'grafana/agent:v0.30.1'
+'grafana/agent:v0.30.2'
diff --git a/production/kubernetes/build/templates/operator/main.jsonnet b/production/kubernetes/build/templates/operator/main.jsonnet
index 71789d097794..820b175b8a06 100644
--- a/production/kubernetes/build/templates/operator/main.jsonnet
+++ b/production/kubernetes/build/templates/operator/main.jsonnet
@@ -23,8 +23,8 @@ local ksm = import 'kube-state-metrics/kube-state-metrics.libsonnet';
   local this = self,
 
   _images:: {
-    agent: 'grafana/agent:v0.30.1',
-    agent_operator: 'grafana/agent-operator:v0.30.1',
+    agent: 'grafana/agent:v0.30.2',
+    agent_operator: 'grafana/agent-operator:v0.30.2',
     ksm: 'registry.k8s.io/kube-state-metrics/kube-state-metrics:v2.5.0',
   },
 
diff --git a/production/kubernetes/install-bare.sh b/production/kubernetes/install-bare.sh
index 283634202de1..a28cd7d97044 100644
--- a/production/kubernetes/install-bare.sh
+++ b/production/kubernetes/install-bare.sh
@@ -25,7 +25,7 @@ check_installed() {
 check_installed curl
 check_installed envsubst
 
-MANIFEST_BRANCH=v0.30.1
+MANIFEST_BRANCH=v0.30.2
 MANIFEST_URL=${MANIFEST_URL:-https://raw.githubusercontent.com/grafana/agent/${MANIFEST_BRANCH}/production/kubernetes/agent-bare.yaml}
 NAMESPACE=${NAMESPACE:-default}
 
diff --git a/production/operator/templates/agent-operator.yaml b/production/operator/templates/agent-operator.yaml
index 21cf2f671ba2..5ef5de2e9ffd 100644
--- a/production/operator/templates/agent-operator.yaml
+++ b/production/operator/templates/agent-operator.yaml
@@ -372,7 +372,7 @@ spec:
       containers:
       - args:
         - --kubelet-service=default/kubelet
-        image: grafana/agent-operator:v0.30.1
+        image: grafana/agent-operator:v0.30.2
         imagePullPolicy: IfNotPresent
         name: grafana-agent-operator
       serviceAccount: grafana-agent-operator
@@ -436,7 +436,7 @@ metadata:
   name: grafana-agent
   namespace: ${NAMESPACE}
 spec:
-  image: grafana/agent:v0.30.1
+  image: grafana/agent:v0.30.2
   integrations:
     selector:
       matchLabels:
diff --git a/production/tanka/grafana-agent/v1/main.libsonnet b/production/tanka/grafana-agent/v1/main.libsonnet
index 6bb31c3b533f..daab6d300bbe 100644
--- a/production/tanka/grafana-agent/v1/main.libsonnet
+++ b/production/tanka/grafana-agent/v1/main.libsonnet
@@ -15,8 +15,8 @@ local service = k.core.v1.service;
 (import './lib/traces.libsonnet') +
 {
   _images:: {
-    agent: 'grafana/agent:v0.30.1',
-    agentctl: 'grafana/agentctl:v0.30.1',
+    agent: 'grafana/agent:v0.30.2',
+    agentctl: 'grafana/agentctl:v0.30.2',
   },
 
   // new creates a new DaemonSet deployment of the grafana-agent. By default,
diff --git a/production/tanka/grafana-agent/v2/internal/base.libsonnet b/production/tanka/grafana-agent/v2/internal/base.libsonnet
index bbddb2a5b67e..83906308f871 100644
--- a/production/tanka/grafana-agent/v2/internal/base.libsonnet
+++ b/production/tanka/grafana-agent/v2/internal/base.libsonnet
@@ -11,8 +11,8 @@ function(name='grafana-agent', namespace='') {
   local this = self,
 
   _images:: {
-    agent: 'grafana/agent:v0.30.1',
-    agentctl: 'grafana/agentctl:v0.30.1',
+    agent: 'grafana/agent:v0.30.2',
+    agentctl: 'grafana/agentctl:v0.30.2',
   },
   _config:: {
     name: name,
diff --git a/production/tanka/grafana-agent/v2/internal/syncer.libsonnet b/production/tanka/grafana-agent/v2/internal/syncer.libsonnet
index 324833acb98d..532e30f7b092 100644
--- a/production/tanka/grafana-agent/v2/internal/syncer.libsonnet
+++ b/production/tanka/grafana-agent/v2/internal/syncer.libsonnet
@@ -14,7 +14,7 @@ function(
 ) {
   local _config = {
     api: error 'api must be set',
-    image: 'grafana/agentctl:v0.30.1',
+    image: 'grafana/agentctl:v0.30.2',
     schedule: '*/5 * * * *',
     configs: [],
   } + config,