From ad4f120e172bbb6b25f1c7283cc30b9c4fa4a7a6 Mon Sep 17 00:00:00 2001
From: dmathieu <42@dmathieu.com>
Date: Tue, 6 Jan 2026 16:15:48 +0100
Subject: [PATCH 1/2] remove deprecated high cardinality metrics feature gate

---
 ...e-disable-high-cardinality-metrics-fg.yaml | 25 +++++++++++++++++++
 service/service.go                            | 10 --------
 2 files changed, 25 insertions(+), 10 deletions(-)
 create mode 100644 .chloggen/remove-disable-high-cardinality-metrics-fg.yaml

diff --git a/.chloggen/remove-disable-high-cardinality-metrics-fg.yaml b/.chloggen/remove-disable-high-cardinality-metrics-fg.yaml
new file mode 100644
index 000000000000..9122a07a1d08
--- /dev/null
+++ b/.chloggen/remove-disable-high-cardinality-metrics-fg.yaml
@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: breaking
+
+# The name of the component, or a single word describing the area of concern, (e.g. receiver/otlp)
+component: pkg/service
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Remove deprecated `telemetry.disableHighCardinalityMetrics` feature gate.
+
+# One or more tracking issues or pull requests related to the change
+issues: []
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]
diff --git a/service/service.go b/service/service.go
index dd0ec2b98045..1c831b4fc299 100644
--- a/service/service.go
+++ b/service/service.go
@@ -23,7 +23,6 @@ import (
 	"go.opentelemetry.io/collector/connector"
 	"go.opentelemetry.io/collector/exporter"
 	"go.opentelemetry.io/collector/extension"
-	"go.opentelemetry.io/collector/featuregate"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/processor"
 	"go.opentelemetry.io/collector/receiver"
@@ -36,15 +35,6 @@ import (
 	"go.opentelemetry.io/collector/service/telemetry"
 )
 
-// This feature gate is deprecated and will be removed in 1.40.0. Views can now be configured.
-var _ = featuregate.GlobalRegistry().MustRegister(
-	"telemetry.disableHighCardinalityMetrics",
-	featuregate.StageDeprecated,
-	featuregate.WithRegisterToVersion("0.133.0"),
-	featuregate.WithRegisterDescription(
-		"Controls whether the collector should enable potentially high "+
-			"cardinality metrics. Deprecated, configure service::telemetry::metrics::views instead."))
-
 // ModuleInfo describes the Go module for a particular component.
 type ModuleInfo = moduleinfo.ModuleInfo
 

From ddf154c8e7d08fbd51a602ba4b3221caffbb08ce Mon Sep 17 00:00:00 2001
From: dmathieu <42@dmathieu.com>
Date: Tue, 6 Jan 2026 16:18:31 +0100
Subject: [PATCH 2/2] add pr number

---
 .chloggen/remove-disable-high-cardinality-metrics-fg.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.chloggen/remove-disable-high-cardinality-metrics-fg.yaml b/.chloggen/remove-disable-high-cardinality-metrics-fg.yaml
index 9122a07a1d08..d641c00bac4b 100644
--- a/.chloggen/remove-disable-high-cardinality-metrics-fg.yaml
+++ b/.chloggen/remove-disable-high-cardinality-metrics-fg.yaml
@@ -10,7 +10,7 @@ component: pkg/service
 note: Remove deprecated `telemetry.disableHighCardinalityMetrics` feature gate.
 
 # One or more tracking issues or pull requests related to the change
-issues: []
+issues: [14373]
 
 # (Optional) One or more lines of additional information to render under the primary note.
 # These lines will be padded with 2 spaces and then inserted directly into the document.