diff --git a/src/OpenTelemetry.Api.ProviderBuilderExtensions/.publicApi/Stable/PublicAPI.Shipped.txt b/src/OpenTelemetry.Api.ProviderBuilderExtensions/.publicApi/Stable/PublicAPI.Shipped.txt
index ca48e185f6d..3ce0282a796 100644
--- a/src/OpenTelemetry.Api.ProviderBuilderExtensions/.publicApi/Stable/PublicAPI.Shipped.txt
+++ b/src/OpenTelemetry.Api.ProviderBuilderExtensions/.publicApi/Stable/PublicAPI.Shipped.txt
@@ -5,17 +5,17 @@ OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMeterProviderBuilderExtens
 OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMetricsServiceCollectionExtensions
 OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracerProviderBuilderExtensions
 OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracingServiceCollectionExtensions
-static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMeterProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMeterProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Func<System.IServiceProvider!, OpenTelemetry.Metrics.MeterProvider!, T!>! instrumentationFactory) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMeterProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Func<System.IServiceProvider!, T!>! instrumentationFactory) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMeterProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, T! instrumentation) -> OpenTelemetry.Metrics.MeterProviderBuilder!
+static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMeterProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMeterProviderBuilderExtensions.ConfigureServices(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Action<Microsoft.Extensions.DependencyInjection.IServiceCollection!>! configure) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMetricsServiceCollectionExtensions.ConfigureOpenTelemetryMeterProvider(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services, System.Action<OpenTelemetry.Metrics.MeterProviderBuilder!>! configure) -> Microsoft.Extensions.DependencyInjection.IServiceCollection!
 static OpenTelemetry.Metrics.OpenTelemetryDependencyInjectionMetricsServiceCollectionExtensions.ConfigureOpenTelemetryMeterProvider(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services, System.Action<System.IServiceProvider!, OpenTelemetry.Metrics.MeterProviderBuilder!>! configure) -> Microsoft.Extensions.DependencyInjection.IServiceCollection!
-static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracerProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Trace.TracerProviderBuilder! tracerProviderBuilder) -> OpenTelemetry.Trace.TracerProviderBuilder!
 static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracerProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Trace.TracerProviderBuilder! tracerProviderBuilder, System.Func<System.IServiceProvider!, OpenTelemetry.Trace.TracerProvider!, T!>! instrumentationFactory) -> OpenTelemetry.Trace.TracerProviderBuilder!
 static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracerProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Trace.TracerProviderBuilder! tracerProviderBuilder, System.Func<System.IServiceProvider!, T!>! instrumentationFactory) -> OpenTelemetry.Trace.TracerProviderBuilder!
 static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracerProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Trace.TracerProviderBuilder! tracerProviderBuilder, T! instrumentation) -> OpenTelemetry.Trace.TracerProviderBuilder!
+static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracerProviderBuilderExtensions.AddInstrumentation<T>(this OpenTelemetry.Trace.TracerProviderBuilder! tracerProviderBuilder) -> OpenTelemetry.Trace.TracerProviderBuilder!
 static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracerProviderBuilderExtensions.ConfigureServices(this OpenTelemetry.Trace.TracerProviderBuilder! tracerProviderBuilder, System.Action<Microsoft.Extensions.DependencyInjection.IServiceCollection!>! configure) -> OpenTelemetry.Trace.TracerProviderBuilder!
 static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracingServiceCollectionExtensions.ConfigureOpenTelemetryTracerProvider(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services, System.Action<OpenTelemetry.Trace.TracerProviderBuilder!>! configure) -> Microsoft.Extensions.DependencyInjection.IServiceCollection!
 static OpenTelemetry.Trace.OpenTelemetryDependencyInjectionTracingServiceCollectionExtensions.ConfigureOpenTelemetryTracerProvider(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services, System.Action<System.IServiceProvider!, OpenTelemetry.Trace.TracerProviderBuilder!>! configure) -> Microsoft.Extensions.DependencyInjection.IServiceCollection!
diff --git a/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md b/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md
index 50d43f6ddf4..556f04ae743 100644
--- a/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md
+++ b/src/OpenTelemetry.Api.ProviderBuilderExtensions/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 ## 1.8.1
 
 Released 2024-Apr-17
diff --git a/src/OpenTelemetry.Api/.publicApi/Stable/PublicAPI.Shipped.txt b/src/OpenTelemetry.Api/.publicApi/Stable/PublicAPI.Shipped.txt
index a87bb701214..0d24692b8bb 100644
--- a/src/OpenTelemetry.Api/.publicApi/Stable/PublicAPI.Shipped.txt
+++ b/src/OpenTelemetry.Api/.publicApi/Stable/PublicAPI.Shipped.txt
@@ -104,8 +104,8 @@ OpenTelemetry.Trace.Link.Attributes.get -> System.Collections.Generic.IEnumerabl
 OpenTelemetry.Trace.Link.Context.get -> OpenTelemetry.Trace.SpanContext
 OpenTelemetry.Trace.Link.Equals(OpenTelemetry.Trace.Link other) -> bool
 OpenTelemetry.Trace.Link.Link() -> void
-OpenTelemetry.Trace.Link.Link(in OpenTelemetry.Trace.SpanContext spanContext) -> void
 OpenTelemetry.Trace.Link.Link(in OpenTelemetry.Trace.SpanContext spanContext, OpenTelemetry.Trace.SpanAttributes? attributes) -> void
+OpenTelemetry.Trace.Link.Link(in OpenTelemetry.Trace.SpanContext spanContext) -> void
 OpenTelemetry.Trace.SpanAttributes
 OpenTelemetry.Trace.SpanAttributes.Add(string! key, bool value) -> void
 OpenTelemetry.Trace.SpanAttributes.Add(string! key, bool[]? values) -> void
@@ -145,10 +145,10 @@ OpenTelemetry.Trace.StatusCode.Error = 2 -> OpenTelemetry.Trace.StatusCode
 OpenTelemetry.Trace.StatusCode.Ok = 1 -> OpenTelemetry.Trace.StatusCode
 OpenTelemetry.Trace.StatusCode.Unset = 0 -> OpenTelemetry.Trace.StatusCode
 OpenTelemetry.Trace.TelemetrySpan
-OpenTelemetry.Trace.TelemetrySpan.AddEvent(string! name) -> OpenTelemetry.Trace.TelemetrySpan!
 OpenTelemetry.Trace.TelemetrySpan.AddEvent(string! name, OpenTelemetry.Trace.SpanAttributes? attributes) -> OpenTelemetry.Trace.TelemetrySpan!
-OpenTelemetry.Trace.TelemetrySpan.AddEvent(string! name, System.DateTimeOffset timestamp) -> OpenTelemetry.Trace.TelemetrySpan!
 OpenTelemetry.Trace.TelemetrySpan.AddEvent(string! name, System.DateTimeOffset timestamp, OpenTelemetry.Trace.SpanAttributes? attributes) -> OpenTelemetry.Trace.TelemetrySpan!
+OpenTelemetry.Trace.TelemetrySpan.AddEvent(string! name, System.DateTimeOffset timestamp) -> OpenTelemetry.Trace.TelemetrySpan!
+OpenTelemetry.Trace.TelemetrySpan.AddEvent(string! name) -> OpenTelemetry.Trace.TelemetrySpan!
 OpenTelemetry.Trace.TelemetrySpan.Context.get -> OpenTelemetry.Trace.SpanContext
 OpenTelemetry.Trace.TelemetrySpan.Dispose() -> void
 OpenTelemetry.Trace.TelemetrySpan.End() -> void
@@ -202,8 +202,8 @@ static OpenTelemetry.Baggage.operator ==(OpenTelemetry.Baggage left, OpenTelemet
 static OpenTelemetry.Context.Propagation.PropagationContext.operator !=(OpenTelemetry.Context.Propagation.PropagationContext left, OpenTelemetry.Context.Propagation.PropagationContext right) -> bool
 static OpenTelemetry.Context.Propagation.PropagationContext.operator ==(OpenTelemetry.Context.Propagation.PropagationContext left, OpenTelemetry.Context.Propagation.PropagationContext right) -> bool
 static OpenTelemetry.Trace.ActivityExtensions.GetStatus(this System.Diagnostics.Activity! activity) -> OpenTelemetry.Trace.Status
-static OpenTelemetry.Trace.ActivityExtensions.RecordException(this System.Diagnostics.Activity! activity, System.Exception? ex) -> void
 static OpenTelemetry.Trace.ActivityExtensions.RecordException(this System.Diagnostics.Activity! activity, System.Exception? ex, in System.Diagnostics.TagList tags) -> void
+static OpenTelemetry.Trace.ActivityExtensions.RecordException(this System.Diagnostics.Activity! activity, System.Exception? ex) -> void
 static OpenTelemetry.Trace.ActivityExtensions.SetStatus(this System.Diagnostics.Activity! activity, OpenTelemetry.Trace.Status status) -> void
 static OpenTelemetry.Trace.Link.operator !=(OpenTelemetry.Trace.Link link1, OpenTelemetry.Trace.Link link2) -> bool
 static OpenTelemetry.Trace.Link.operator ==(OpenTelemetry.Trace.Link link1, OpenTelemetry.Trace.Link link2) -> bool
diff --git a/src/OpenTelemetry.Api/CHANGELOG.md b/src/OpenTelemetry.Api/CHANGELOG.md
index 877dab6b9d1..efb501d928b 100644
--- a/src/OpenTelemetry.Api/CHANGELOG.md
+++ b/src/OpenTelemetry.Api/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 * **Breaking change:** Fix space character encoding from `+` to `%20`
   for baggage item values when propagating baggage as defined in
   [W3C Baggage propagation format specification](https://www.w3.org/TR/baggage/).
diff --git a/src/OpenTelemetry.Exporter.Console/.publicApi/Stable/PublicAPI.Shipped.txt b/src/OpenTelemetry.Exporter.Console/.publicApi/Stable/PublicAPI.Shipped.txt
index 6f900a1f6f6..e36dba3629c 100644
--- a/src/OpenTelemetry.Exporter.Console/.publicApi/Stable/PublicAPI.Shipped.txt
+++ b/src/OpenTelemetry.Exporter.Console/.publicApi/Stable/PublicAPI.Shipped.txt
@@ -21,13 +21,13 @@ override OpenTelemetry.Exporter.ConsoleActivityExporter.Export(in OpenTelemetry.
 override OpenTelemetry.Exporter.ConsoleLogRecordExporter.Dispose(bool disposing) -> void
 override OpenTelemetry.Exporter.ConsoleLogRecordExporter.Export(in OpenTelemetry.Batch<OpenTelemetry.Logs.LogRecord> batch) -> OpenTelemetry.ExportResult
 override OpenTelemetry.Exporter.ConsoleMetricExporter.Export(in OpenTelemetry.Batch<OpenTelemetry.Metrics.Metric> batch) -> OpenTelemetry.ExportResult
-static OpenTelemetry.Logs.ConsoleExporterLoggingExtensions.AddConsoleExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions loggerOptions) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions
 static OpenTelemetry.Logs.ConsoleExporterLoggingExtensions.AddConsoleExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions loggerOptions, System.Action<OpenTelemetry.Exporter.ConsoleExporterOptions> configure) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions
-static OpenTelemetry.Metrics.ConsoleExporterMetricsExtensions.AddConsoleExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder) -> OpenTelemetry.Metrics.MeterProviderBuilder
+static OpenTelemetry.Logs.ConsoleExporterLoggingExtensions.AddConsoleExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions loggerOptions) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions
 static OpenTelemetry.Metrics.ConsoleExporterMetricsExtensions.AddConsoleExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, string name, System.Action<OpenTelemetry.Exporter.ConsoleExporterOptions, OpenTelemetry.Metrics.MetricReaderOptions> configureExporterAndMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Metrics.ConsoleExporterMetricsExtensions.AddConsoleExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, string name, System.Action<OpenTelemetry.Exporter.ConsoleExporterOptions> configureExporter) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Metrics.ConsoleExporterMetricsExtensions.AddConsoleExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Action<OpenTelemetry.Exporter.ConsoleExporterOptions, OpenTelemetry.Metrics.MetricReaderOptions> configureExporterAndMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Metrics.ConsoleExporterMetricsExtensions.AddConsoleExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Action<OpenTelemetry.Exporter.ConsoleExporterOptions> configureExporter) -> OpenTelemetry.Metrics.MeterProviderBuilder
-static OpenTelemetry.Trace.ConsoleExporterHelperExtensions.AddConsoleExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Metrics.ConsoleExporterMetricsExtensions.AddConsoleExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Trace.ConsoleExporterHelperExtensions.AddConsoleExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, string name, System.Action<OpenTelemetry.Exporter.ConsoleExporterOptions> configure) -> OpenTelemetry.Trace.TracerProviderBuilder
 static OpenTelemetry.Trace.ConsoleExporterHelperExtensions.AddConsoleExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Exporter.ConsoleExporterOptions> configure) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.ConsoleExporterHelperExtensions.AddConsoleExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder) -> OpenTelemetry.Trace.TracerProviderBuilder
diff --git a/src/OpenTelemetry.Exporter.Console/CHANGELOG.md b/src/OpenTelemetry.Exporter.Console/CHANGELOG.md
index 2c0a56df8a1..747960a8f2c 100644
--- a/src/OpenTelemetry.Exporter.Console/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Console/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 ## 1.8.1
 
 Released 2024-Apr-17
diff --git a/src/OpenTelemetry.Exporter.InMemory/.publicApi/Stable/PublicAPI.Shipped.txt b/src/OpenTelemetry.Exporter.InMemory/.publicApi/Stable/PublicAPI.Shipped.txt
index 499065e2d09..ccbf13e8dcd 100644
--- a/src/OpenTelemetry.Exporter.InMemory/.publicApi/Stable/PublicAPI.Shipped.txt
+++ b/src/OpenTelemetry.Exporter.InMemory/.publicApi/Stable/PublicAPI.Shipped.txt
@@ -17,8 +17,8 @@ override OpenTelemetry.Exporter.InMemoryExporter<T>.Export(in OpenTelemetry.Batc
 static OpenTelemetry.Logs.InMemoryExporterLoggingExtensions.AddInMemoryExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions loggerOptions, System.Collections.Generic.ICollection<OpenTelemetry.Logs.LogRecord> exportedItems) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions
 static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, string name, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.Metric> exportedItems, System.Action<OpenTelemetry.Metrics.MetricReaderOptions> configureMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, string name, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.MetricSnapshot> exportedItems, System.Action<OpenTelemetry.Metrics.MetricReaderOptions> configureMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder
-static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.Metric> exportedItems) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.Metric> exportedItems, System.Action<OpenTelemetry.Metrics.MetricReaderOptions> configureMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder
-static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.MetricSnapshot> exportedItems) -> OpenTelemetry.Metrics.MeterProviderBuilder
+static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.Metric> exportedItems) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.MetricSnapshot> exportedItems, System.Action<OpenTelemetry.Metrics.MetricReaderOptions> configureMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder
+static OpenTelemetry.Metrics.InMemoryExporterMetricsExtensions.AddInMemoryExporter(this OpenTelemetry.Metrics.MeterProviderBuilder builder, System.Collections.Generic.ICollection<OpenTelemetry.Metrics.MetricSnapshot> exportedItems) -> OpenTelemetry.Metrics.MeterProviderBuilder
 static OpenTelemetry.Trace.InMemoryExporterHelperExtensions.AddInMemoryExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Collections.Generic.ICollection<System.Diagnostics.Activity> exportedItems) -> OpenTelemetry.Trace.TracerProviderBuilder
diff --git a/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md b/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md
index a5d6e499957..4c0c6f28788 100644
--- a/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.InMemory/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 ## 1.8.1
 
 Released 2024-Apr-17
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/Stable/PublicAPI.Shipped.txt b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/Stable/PublicAPI.Shipped.txt
index 2fd5a429424..65cbfefb5f3 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/Stable/PublicAPI.Shipped.txt
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/.publicApi/Stable/PublicAPI.Shipped.txt
@@ -33,18 +33,18 @@ OpenTelemetry.Trace.OtlpTraceExporterHelperExtensions
 override OpenTelemetry.Exporter.OtlpLogExporter.Export(in OpenTelemetry.Batch<OpenTelemetry.Logs.LogRecord!> logRecordBatch) -> OpenTelemetry.ExportResult
 override OpenTelemetry.Exporter.OtlpMetricExporter.OnShutdown(int timeoutMilliseconds) -> bool
 override OpenTelemetry.Exporter.OtlpTraceExporter.OnShutdown(int timeoutMilliseconds) -> bool
-static OpenTelemetry.Logs.OtlpLogExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions! loggerOptions) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions!
 static OpenTelemetry.Logs.OtlpLogExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions! loggerOptions, string? name, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!, OpenTelemetry.Logs.LogRecordExportProcessorOptions!>? configureExporterAndProcessor) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions!
 static OpenTelemetry.Logs.OtlpLogExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions! loggerOptions, string? name, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!>? configure) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions!
 static OpenTelemetry.Logs.OtlpLogExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions! loggerOptions, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!, OpenTelemetry.Logs.LogRecordExportProcessorOptions!>! configureExporterAndProcessor) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions!
 static OpenTelemetry.Logs.OtlpLogExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions! loggerOptions, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!>! configure) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions!
-static OpenTelemetry.Metrics.OtlpMetricExporterExtensions.AddOtlpExporter(this OpenTelemetry.Metrics.MeterProviderBuilder! builder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
+static OpenTelemetry.Logs.OtlpLogExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Logs.OpenTelemetryLoggerOptions! loggerOptions) -> OpenTelemetry.Logs.OpenTelemetryLoggerOptions!
 static OpenTelemetry.Metrics.OtlpMetricExporterExtensions.AddOtlpExporter(this OpenTelemetry.Metrics.MeterProviderBuilder! builder, string? name, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!, OpenTelemetry.Metrics.MetricReaderOptions!>? configureExporterAndMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OtlpMetricExporterExtensions.AddOtlpExporter(this OpenTelemetry.Metrics.MeterProviderBuilder! builder, string? name, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!>? configure) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OtlpMetricExporterExtensions.AddOtlpExporter(this OpenTelemetry.Metrics.MeterProviderBuilder! builder, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!, OpenTelemetry.Metrics.MetricReaderOptions!>! configureExporterAndMetricReader) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.OtlpMetricExporterExtensions.AddOtlpExporter(this OpenTelemetry.Metrics.MeterProviderBuilder! builder, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!>! configure) -> OpenTelemetry.Metrics.MeterProviderBuilder!
-static OpenTelemetry.OpenTelemetryBuilderOtlpExporterExtensions.UseOtlpExporter(this OpenTelemetry.IOpenTelemetryBuilder! builder) -> OpenTelemetry.IOpenTelemetryBuilder!
+static OpenTelemetry.Metrics.OtlpMetricExporterExtensions.AddOtlpExporter(this OpenTelemetry.Metrics.MeterProviderBuilder! builder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.OpenTelemetryBuilderOtlpExporterExtensions.UseOtlpExporter(this OpenTelemetry.IOpenTelemetryBuilder! builder, OpenTelemetry.Exporter.OtlpExportProtocol protocol, System.Uri! baseUrl) -> OpenTelemetry.IOpenTelemetryBuilder!
-static OpenTelemetry.Trace.OtlpTraceExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Trace.TracerProviderBuilder! builder) -> OpenTelemetry.Trace.TracerProviderBuilder!
+static OpenTelemetry.OpenTelemetryBuilderOtlpExporterExtensions.UseOtlpExporter(this OpenTelemetry.IOpenTelemetryBuilder! builder) -> OpenTelemetry.IOpenTelemetryBuilder!
 static OpenTelemetry.Trace.OtlpTraceExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Trace.TracerProviderBuilder! builder, string? name, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!>? configure) -> OpenTelemetry.Trace.TracerProviderBuilder!
 static OpenTelemetry.Trace.OtlpTraceExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Trace.TracerProviderBuilder! builder, System.Action<OpenTelemetry.Exporter.OtlpExporterOptions!>! configure) -> OpenTelemetry.Trace.TracerProviderBuilder!
+static OpenTelemetry.Trace.OtlpTraceExporterHelperExtensions.AddOtlpExporter(this OpenTelemetry.Trace.TracerProviderBuilder! builder) -> OpenTelemetry.Trace.TracerProviderBuilder!
diff --git a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
index d8200afd2b1..841646f3e38 100644
--- a/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.OpenTelemetryProtocol/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 * `User-Agent` header format changed from
   `OTel-OTLP-Exporter-Dotnet/{NuGet Package Version}+{Commit Hash}`
   to `OTel-OTLP-Exporter-Dotnet/{NuGet Package Version}`.
diff --git a/src/OpenTelemetry.Exporter.Zipkin/.publicApi/PublicAPI.Shipped.txt b/src/OpenTelemetry.Exporter.Zipkin/.publicApi/PublicAPI.Shipped.txt
index 9e2e613e196..5d94b912d2d 100644
--- a/src/OpenTelemetry.Exporter.Zipkin/.publicApi/PublicAPI.Shipped.txt
+++ b/src/OpenTelemetry.Exporter.Zipkin/.publicApi/PublicAPI.Shipped.txt
@@ -16,6 +16,6 @@ OpenTelemetry.Exporter.ZipkinExporterOptions.UseShortTraceIds.set -> void
 OpenTelemetry.Exporter.ZipkinExporterOptions.ZipkinExporterOptions() -> void
 OpenTelemetry.Trace.ZipkinExporterHelperExtensions
 override OpenTelemetry.Exporter.ZipkinExporter.Export(in OpenTelemetry.Batch<System.Diagnostics.Activity> batch) -> OpenTelemetry.ExportResult
-static OpenTelemetry.Trace.ZipkinExporterHelperExtensions.AddZipkinExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder) -> OpenTelemetry.Trace.TracerProviderBuilder
 static OpenTelemetry.Trace.ZipkinExporterHelperExtensions.AddZipkinExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, string name, System.Action<OpenTelemetry.Exporter.ZipkinExporterOptions> configure) -> OpenTelemetry.Trace.TracerProviderBuilder
 static OpenTelemetry.Trace.ZipkinExporterHelperExtensions.AddZipkinExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder, System.Action<OpenTelemetry.Exporter.ZipkinExporterOptions> configure) -> OpenTelemetry.Trace.TracerProviderBuilder
+static OpenTelemetry.Trace.ZipkinExporterHelperExtensions.AddZipkinExporter(this OpenTelemetry.Trace.TracerProviderBuilder builder) -> OpenTelemetry.Trace.TracerProviderBuilder
diff --git a/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md b/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md
index cf72bf0c33f..e19cada5bdd 100644
--- a/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md
+++ b/src/OpenTelemetry.Exporter.Zipkin/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 ## 1.8.1
 
 Released 2024-Apr-17
diff --git a/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md b/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md
index d0f6f22868b..29b6d4ebf51 100644
--- a/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md
+++ b/src/OpenTelemetry.Extensions.Hosting/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 * Reverted obsoletion of `OpenTelemetryBuilder`.
   ([#5571](https://github.com/open-telemetry/opentelemetry-dotnet/pull/5571))
 
diff --git a/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md b/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md
index 97b2f8c0da5..5452741c46b 100644
--- a/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md
+++ b/src/OpenTelemetry.Extensions.Propagators/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 ## 1.8.1
 
 Released 2024-Apr-17
diff --git a/src/OpenTelemetry/.publicApi/Stable/PublicAPI.Shipped.txt b/src/OpenTelemetry/.publicApi/Stable/PublicAPI.Shipped.txt
index 8ce68138218..12c42cdb121 100644
--- a/src/OpenTelemetry/.publicApi/Stable/PublicAPI.Shipped.txt
+++ b/src/OpenTelemetry/.publicApi/Stable/PublicAPI.Shipped.txt
@@ -289,8 +289,8 @@ OpenTelemetry.Trace.AlwaysOnSampler.AlwaysOnSampler() -> void
 OpenTelemetry.Trace.BatchExportActivityProcessorOptions
 OpenTelemetry.Trace.BatchExportActivityProcessorOptions.BatchExportActivityProcessorOptions() -> void
 OpenTelemetry.Trace.ParentBasedSampler
-OpenTelemetry.Trace.ParentBasedSampler.ParentBasedSampler(OpenTelemetry.Trace.Sampler! rootSampler) -> void
 OpenTelemetry.Trace.ParentBasedSampler.ParentBasedSampler(OpenTelemetry.Trace.Sampler! rootSampler, OpenTelemetry.Trace.Sampler? remoteParentSampled = null, OpenTelemetry.Trace.Sampler? remoteParentNotSampled = null, OpenTelemetry.Trace.Sampler? localParentSampled = null, OpenTelemetry.Trace.Sampler? localParentNotSampled = null) -> void
+OpenTelemetry.Trace.ParentBasedSampler.ParentBasedSampler(OpenTelemetry.Trace.Sampler! rootSampler) -> void
 OpenTelemetry.Trace.Sampler
 OpenTelemetry.Trace.Sampler.Description.get -> string!
 OpenTelemetry.Trace.Sampler.Description.set -> void
@@ -314,10 +314,10 @@ OpenTelemetry.Trace.SamplingResult.Decision.get -> OpenTelemetry.Trace.SamplingD
 OpenTelemetry.Trace.SamplingResult.Equals(OpenTelemetry.Trace.SamplingResult other) -> bool
 OpenTelemetry.Trace.SamplingResult.SamplingResult() -> void
 OpenTelemetry.Trace.SamplingResult.SamplingResult(bool isSampled) -> void
-OpenTelemetry.Trace.SamplingResult.SamplingResult(OpenTelemetry.Trace.SamplingDecision decision) -> void
 OpenTelemetry.Trace.SamplingResult.SamplingResult(OpenTelemetry.Trace.SamplingDecision decision, string! traceStateString) -> void
 OpenTelemetry.Trace.SamplingResult.SamplingResult(OpenTelemetry.Trace.SamplingDecision decision, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<string!, object!>>! attributes) -> void
 OpenTelemetry.Trace.SamplingResult.SamplingResult(OpenTelemetry.Trace.SamplingDecision decision, System.Collections.Generic.IEnumerable<System.Collections.Generic.KeyValuePair<string!, object!>>? attributes, string? traceStateString) -> void
+OpenTelemetry.Trace.SamplingResult.SamplingResult(OpenTelemetry.Trace.SamplingDecision decision) -> void
 OpenTelemetry.Trace.SamplingResult.TraceStateString.get -> string?
 OpenTelemetry.Trace.TraceIdRatioBasedSampler
 OpenTelemetry.Trace.TraceIdRatioBasedSampler.TraceIdRatioBasedSampler(double probability) -> void
@@ -366,8 +366,8 @@ override OpenTelemetry.Trace.TracerProviderBuilderBase.AddSource(params string![
 override sealed OpenTelemetry.BaseExportProcessor<T>.OnStart(T! data) -> void
 readonly OpenTelemetry.BaseExportProcessor<T>.exporter -> OpenTelemetry.BaseExporter<T!>!
 readonly OpenTelemetry.Metrics.BaseExportingMetricReader.exporter -> OpenTelemetry.BaseExporter<OpenTelemetry.Metrics.Metric!>!
-static Microsoft.Extensions.Logging.OpenTelemetryLoggingExtensions.AddOpenTelemetry(this Microsoft.Extensions.Logging.ILoggingBuilder! builder) -> Microsoft.Extensions.Logging.ILoggingBuilder!
 static Microsoft.Extensions.Logging.OpenTelemetryLoggingExtensions.AddOpenTelemetry(this Microsoft.Extensions.Logging.ILoggingBuilder! builder, System.Action<OpenTelemetry.Logs.OpenTelemetryLoggerOptions!>? configure) -> Microsoft.Extensions.Logging.ILoggingBuilder!
+static Microsoft.Extensions.Logging.OpenTelemetryLoggingExtensions.AddOpenTelemetry(this Microsoft.Extensions.Logging.ILoggingBuilder! builder) -> Microsoft.Extensions.Logging.ILoggingBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, OpenTelemetry.Metrics.MetricReader! reader) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder, System.Func<System.IServiceProvider!, OpenTelemetry.Metrics.MetricReader!>! implementationFactory) -> OpenTelemetry.Metrics.MeterProviderBuilder!
 static OpenTelemetry.Metrics.MeterProviderBuilderExtensions.AddReader<T>(this OpenTelemetry.Metrics.MeterProviderBuilder! meterProviderBuilder) -> OpenTelemetry.Metrics.MeterProviderBuilder!
@@ -388,10 +388,10 @@ static OpenTelemetry.Metrics.MetricTypeExtensions.IsHistogram(this OpenTelemetry
 static OpenTelemetry.Metrics.MetricTypeExtensions.IsLong(this OpenTelemetry.Metrics.MetricType self) -> bool
 static OpenTelemetry.Metrics.MetricTypeExtensions.IsSum(this OpenTelemetry.Metrics.MetricType self) -> bool
 static OpenTelemetry.OpenTelemetryBuilderSdkExtensions.ConfigureResource(this OpenTelemetry.IOpenTelemetryBuilder! builder, System.Action<OpenTelemetry.Resources.ResourceBuilder!>! configure) -> OpenTelemetry.IOpenTelemetryBuilder!
-static OpenTelemetry.OpenTelemetryBuilderSdkExtensions.WithMetrics(this OpenTelemetry.IOpenTelemetryBuilder! builder) -> OpenTelemetry.IOpenTelemetryBuilder!
 static OpenTelemetry.OpenTelemetryBuilderSdkExtensions.WithMetrics(this OpenTelemetry.IOpenTelemetryBuilder! builder, System.Action<OpenTelemetry.Metrics.MeterProviderBuilder!>! configure) -> OpenTelemetry.IOpenTelemetryBuilder!
-static OpenTelemetry.OpenTelemetryBuilderSdkExtensions.WithTracing(this OpenTelemetry.IOpenTelemetryBuilder! builder) -> OpenTelemetry.IOpenTelemetryBuilder!
+static OpenTelemetry.OpenTelemetryBuilderSdkExtensions.WithMetrics(this OpenTelemetry.IOpenTelemetryBuilder! builder) -> OpenTelemetry.IOpenTelemetryBuilder!
 static OpenTelemetry.OpenTelemetryBuilderSdkExtensions.WithTracing(this OpenTelemetry.IOpenTelemetryBuilder! builder, System.Action<OpenTelemetry.Trace.TracerProviderBuilder!>! configure) -> OpenTelemetry.IOpenTelemetryBuilder!
+static OpenTelemetry.OpenTelemetryBuilderSdkExtensions.WithTracing(this OpenTelemetry.IOpenTelemetryBuilder! builder) -> OpenTelemetry.IOpenTelemetryBuilder!
 static OpenTelemetry.ProviderExtensions.GetDefaultResource(this OpenTelemetry.BaseProvider! baseProvider) -> OpenTelemetry.Resources.Resource!
 static OpenTelemetry.ProviderExtensions.GetResource(this OpenTelemetry.BaseProvider! baseProvider) -> OpenTelemetry.Resources.Resource!
 static OpenTelemetry.Resources.Resource.Empty.get -> OpenTelemetry.Resources.Resource!
diff --git a/src/OpenTelemetry/CHANGELOG.md b/src/OpenTelemetry/CHANGELOG.md
index 17b69e13e6c..94dd4b94a6e 100644
--- a/src/OpenTelemetry/CHANGELOG.md
+++ b/src/OpenTelemetry/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+## 1.9.0
+
+Released 2024-May-14
+
 * **Experimental (pre-release builds only):** Exposed `ExemplarReservoir` as a
   public API and added support for setting an `ExemplarReservoir` factory
   function when configuring a view (applies to individual metrics).