Drop support for Go 1.24

.github/workflows/ci.yml

@@ -167,7 +167,7 @@ jobs:
   compatibility-test:
     strategy:
       matrix:
-        go-version: ["1.26.0", "1.25.0", "1.24.0"]
+        go-version: ["1.26.0", "1.25.0"]
         platform:
           - os: ubuntu-latest
             arch: "386"

CHANGELOG.md

@@ -8,6 +8,10 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
+### Removed
+
+- Drop support for [Go 1.24]. (#7984)
+
 <!-- Released section -->
 <!-- Don't change this section unless doing release -->
 

README.md

@@ -55,25 +55,18 @@ Currently, this project supports the following environments.
 |----------|------------|--------------|
 | Ubuntu   | 1.26       | amd64        |
 | Ubuntu   | 1.25       | amd64        |
-| Ubuntu   | 1.24       | amd64        |
 | Ubuntu   | 1.26       | 386          |
 | Ubuntu   | 1.25       | 386          |
-| Ubuntu   | 1.24       | 386          |
 | Ubuntu   | 1.26       | arm64        |
 | Ubuntu   | 1.25       | arm64        |
-| Ubuntu   | 1.24       | arm64        |
 | macOS    | 1.26       | amd64        |
 | macOS    | 1.25       | amd64        |
-| macOS    | 1.24       | amd64        |
 | macOS    | 1.26       | arm64        |
 | macOS    | 1.25       | arm64        |
-| macOS    | 1.24       | arm64        |
 | Windows  | 1.26       | amd64        |
 | Windows  | 1.25       | amd64        |
-| Windows  | 1.24       | amd64        |
 | Windows  | 1.26       | 386          |
 | Windows  | 1.25       | 386          |
-| Windows  | 1.24       | 386          |
 
 While this project should work for other systems, no compatibility guarantees
 are made for those systems currently.

bridge/opencensus/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/bridge/opencensus
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/stretchr/testify v1.11.1

bridge/opencensus/test/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/bridge/opencensus/test
 
-go 1.24.0
+go 1.25.0
 
 require (
 	go.opencensus.io v0.24.0

bridge/opentracing/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/bridge/opentracing
 
-go 1.24.0
+go 1.25.0
 
 replace go.opentelemetry.io/otel => ../..
 

exporters/otlp/otlplog/otlploggrpc/exporter_test.go

@@ -126,10 +126,7 @@ func TestExporterConcurrentSafe(t *testing.T) {
 	ctx, cancel := context.WithCancel(t.Context())
 	runs := new(uint64)
 	for range goroutines {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-
+		wg.Go(func() {
 			r := make([]sdklog.Record, 1)
 			for {
 				select {
@@ -141,7 +138,7 @@ func TestExporterConcurrentSafe(t *testing.T) {
 					atomic.AddUint64(runs, 1)
 				}
 			}
-		}()
+		})
 	}
 
 	for atomic.LoadUint64(runs) == 0 {

exporters/otlp/otlplog/otlploggrpc/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc
 
-go 1.24.0
+go 1.25.0
 
 // Contains broken dependency on go.opentelemetry.io/otel/sdk/log/logtest.
 retract v0.12.0

exporters/otlp/otlplog/otlploghttp/exporter_test.go

@@ -94,10 +94,7 @@ func TestExporterConcurrentSafe(t *testing.T) {
 	ctx, cancel := context.WithCancel(t.Context())
 	runs := new(uint64)
 	for range goroutines {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-
+		wg.Go(func() {
 			r := make([]log.Record, 1)
 			for {
 				select {
@@ -109,7 +106,7 @@ func TestExporterConcurrentSafe(t *testing.T) {
 					atomic.AddUint64(runs, 1)
 				}
 			}
-		}()
+		})
 	}
 
 	for atomic.LoadUint64(runs) == 0 {

exporters/otlp/otlplog/otlploghttp/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploghttp
 
-go 1.24.0
+go 1.25.0
 
 // Contains broken dependency on go.opentelemetry.io/otel/sdk/log/logtest.
 retract v0.12.0

exporters/otlp/otlpmetric/otlpmetricgrpc/exporter_test.go

@@ -84,14 +84,12 @@ func TestExporterDoesNotBlockTemporalityAndAggregation(t *testing.T) {
 	require.NoError(t, err)
 
 	var wg sync.WaitGroup
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	wg.Go(func() {
 		rm := new(metricdata.ResourceMetrics)
 		t.Log("starting export")
 		require.NoError(t, exp.Export(ctx, rm))
 		t.Log("export complete")
-	}()
+	})
 
 	assert.Eventually(t, func() bool {
 		const inst = metric.InstrumentKindCounter

exporters/otlp/otlpmetric/otlpmetricgrpc/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc
 
-go 1.24.0
+go 1.25.0
 
 retract v0.32.2 // Contains unresolvable dependencies.
 

exporters/otlp/otlpmetric/otlpmetrichttp/exporter_test.go

@@ -84,14 +84,12 @@ func TestExporterDoesNotBlockTemporalityAndAggregation(t *testing.T) {
 	require.NoError(t, err)
 
 	var wg sync.WaitGroup
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	wg.Go(func() {
 		rm := new(metricdata.ResourceMetrics)
 		t.Log("starting export")
 		require.NoError(t, exp.Export(ctx, rm))
 		t.Log("export complete")
-	}()
+	})
 
 	assert.Eventually(t, func() bool {
 		const inst = metric.InstrumentKindCounter

exporters/otlp/otlpmetric/otlpmetrichttp/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp
 
-go 1.24.0
+go 1.25.0
 
 retract v0.32.2 // Contains unresolvable dependencies.
 

exporters/otlp/otlptrace/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/otlp/otlptrace
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/google/go-cmp v0.7.0

exporters/otlp/otlptrace/otlptracegrpc/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/cenkalti/backoff/v5 v5.0.3

exporters/otlp/otlptrace/otlptracehttp/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/cenkalti/backoff/v5 v5.0.3

exporters/prometheus/exporter_test.go

@@ -1162,12 +1162,10 @@ func TestCollectorConcurrentSafe(t *testing.T) {
 	var wg sync.WaitGroup
 	concurrencyLevel := 10
 	for range concurrencyLevel {
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
+		wg.Go(func() {
 			_, err := registry.Gather() // this calls collector.Collect
 			assert.NoError(t, err)
-		}()
+		})
 	}
 
 	wg.Wait()

exporters/prometheus/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/prometheus
 
-go 1.24.0
+go 1.25.0
 
 // v0.59.0 produces incorrect metric names when bracketed units are used.
 // https://github.com/open-telemetry/opentelemetry-go/issues/7039

exporters/stdout/stdoutlog/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/stdout/stdoutlog
 
-go 1.24.0
+go 1.25.0
 
 // Contains broken dependency on go.opentelemetry.io/otel/sdk/log/logtest.
 retract v0.12.0

exporters/stdout/stdoutmetric/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/stdout/stdoutmetric
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/stretchr/testify v1.11.1

exporters/stdout/stdouttrace/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/exporters/stdout/stdouttrace
 
-go 1.24.0
+go 1.25.0
 
 replace (
 	go.opentelemetry.io/otel => ../../..

exporters/zipkin/go.mod

@@ -2,7 +2,7 @@
 // See the blog post "Deprecating Zipkin Exporter": https://opentelemetry.io/blog/2025/deprecating-zipkin-exporters/
 module go.opentelemetry.io/otel/exporters/zipkin
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/go-logr/logr v1.4.3

go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/cespare/xxhash/v2 v2.3.0

internal/global/internal_logging_test.go

@@ -19,16 +19,12 @@ import (
 
 func TestLoggerConcurrentSafe(t *testing.T) {
 	var wg sync.WaitGroup
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	wg.Go(func() {
 		SetLogger(stdr.New(log.New(io.Discard, "", 0)))
-	}()
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	})
+	wg.Go(func() {
 		Info("")
-	}()
+	})
 
 	wg.Wait()
 	ResetForTest(t)

internal/tools/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/internal/tools
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/Masterminds/semver v1.5.0

log/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/log
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/go-logr/logr v1.4.3

log/logtest/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/log/logtest
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/google/go-cmp v0.7.0

metric/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/metric
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/stretchr/testify v1.11.1

metric/instrument_test.go

@@ -98,44 +98,32 @@ func TestWithAttributesConcurrentSafe(*testing.T) {
 	}
 
 	var wg sync.WaitGroup
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	wg.Go(func() {
 		opt := []AddOption{WithAttributes(attrs...)}
 		_ = NewAddConfig(opt)
-	}()
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	})
+	wg.Go(func() {
 		opt := []AddOption{WithAttributes(attrs...)}
 		_ = NewAddConfig(opt)
-	}()
+	})
 
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	wg.Go(func() {
 		opt := []RecordOption{WithAttributes(attrs...)}
 		_ = NewRecordConfig(opt)
-	}()
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	})
+	wg.Go(func() {
 		opt := []RecordOption{WithAttributes(attrs...)}
 		_ = NewRecordConfig(opt)
-	}()
+	})
 
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	wg.Go(func() {
 		opt := []ObserveOption{WithAttributes(attrs...)}
 		_ = NewObserveConfig(opt)
-	}()
-	wg.Add(1)
-	go func() {
-		defer wg.Done()
+	})
+	wg.Go(func() {
 		opt := []ObserveOption{WithAttributes(attrs...)}
 		_ = NewObserveConfig(opt)
-	}()
+	})
 
 	wg.Wait()
 }

schema/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/schema
 
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/Masterminds/semver/v3 v3.4.0

sdk/go.mod

@@ -1,6 +1,6 @@
 module go.opentelemetry.io/otel/sdk
 
-go 1.24.0
+go 1.25.0
 
 replace go.opentelemetry.io/otel => ../