diff --git a/CHANGELOG.md b/CHANGELOG.md
index c267bb48da..01f54cf339 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,8 @@ Increment the:
 
 * [BUILD] Remove WITH_REMOVE_METER_PREVIEW, use WITH_ABI_VERSION_2 instead
   [#2370](https://github.com/open-telemetry/opentelemetry-cpp/pull/2370)
+* [BUILD] Make WITH_OTLP_HTTP_SSL_PREVIEW mainstream
+  [#2378](https://github.com/open-telemetry/opentelemetry-cpp/pull/2378)
 * [API] Add InstrumentationScope attributes in TracerProvider::GetTracer()
   [#2371](https://github.com/open-telemetry/opentelemetry-cpp/pull/2371)
 
@@ -30,6 +32,15 @@ Important changes:
   * When building with `CMake` option `WITH_ABI_VERSION_1=ON` (by default)
     the `ABI` is unchanged, and the fix is not available.
 
+* [BUILD] Make WITH_OTLP_HTTP_SSL_PREVIEW mainstream
+  [#2378](https://github.com/open-telemetry/opentelemetry-cpp/pull/2378)
+  * The experimental `CMake` option `WITH_OTLP_HTTP_SSL_PREVIEW`
+    is now promoted to stable. The default is changed to `ON`.
+  * The experimental `CMake` option `WITH_OTLP_HTTP_SSL_TLS_PREVIEW`
+    is now promoted to stable. The default is changed to `ON`.
+  * These build options are scheduled to be removed by the next release,
+    building without SSL/TLS will no longer be possible.
+
 Breaking changes:
 
 * [BUILD] Remove WITH_REMOVE_METER_PREVIEW, use WITH_ABI_VERSION_2 instead
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4af81bf0e9..b72e58a963 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -275,12 +275,12 @@ endif()
 
 option(WITH_ASYNC_EXPORT_PREVIEW "Whether to enable async export" OFF)
 
-# EXPERIMENTAL
-option(WITH_OTLP_HTTP_SSL_PREVIEW "Whether to enable otlp http ssl export" OFF)
+# STABLE
+option(WITH_OTLP_HTTP_SSL_PREVIEW "Whether to enable otlp http ssl export" ON)
 
-# EXPERIMENTAL
+# STABLE
 option(WITH_OTLP_HTTP_SSL_TLS_PREVIEW
-       "Whether to enable otlp http ssl tls min/max/cipher options" OFF)
+       "Whether to enable otlp http ssl tls min/max/cipher options" ON)
 
 # Exemplar specs status is experimental, so behind feature flag by default
 option(WITH_METRICS_EXEMPLAR_PREVIEW
diff --git a/sdk/include/opentelemetry/sdk/metrics/aggregation/default_aggregation.h b/sdk/include/opentelemetry/sdk/metrics/aggregation/default_aggregation.h
index 6ae111fd85..4f3346707f 100644
--- a/sdk/include/opentelemetry/sdk/metrics/aggregation/default_aggregation.h
+++ b/sdk/include/opentelemetry/sdk/metrics/aggregation/default_aggregation.h
@@ -35,7 +35,8 @@ class DefaultAggregation
       case AggregationType::kSum:
         return (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
                    ? std::move(std::unique_ptr<Aggregation>(new LongSumAggregation(is_monotonic)))
-                   : std::move(std::unique_ptr<Aggregation>(new DoubleSumAggregation(true)));
+                   : std::move(
+                         std::unique_ptr<Aggregation>(new DoubleSumAggregation(is_monotonic)));
         break;
       case AggregationType::kHistogram: {
         if (instrument_descriptor.value_type_ == InstrumentValueType::kLong)
diff --git a/sdk/test/metrics/sum_aggregation_test.cc b/sdk/test/metrics/sum_aggregation_test.cc
index b355f134ed..403bf34b22 100644
--- a/sdk/test/metrics/sum_aggregation_test.cc
+++ b/sdk/test/metrics/sum_aggregation_test.cc
@@ -121,8 +121,12 @@ TEST(CounterToSum, Double)
   ASSERT_EQ(1000275.0, opentelemetry::nostd::get<double>(actual.value_));
 }
 
-TEST(UpDownCounterToSum, Double)
+class UpDownCounterToSumFixture : public ::testing::TestWithParam<bool>
+{};
+
+TEST_P(UpDownCounterToSumFixture, Double)
 {
+  bool is_matching_view = GetParam();
   MeterProvider mp;
   auto m                      = mp.GetMeter("meter1", "version1", "schema1");
   std::string instrument_name = "updowncounter1";
@@ -133,13 +137,16 @@ TEST(UpDownCounterToSum, Double)
   std::shared_ptr<MetricReader> reader{new MockMetricReader(std::move(exporter))};
   mp.AddMetricReader(reader);
 
-  std::unique_ptr<View> view{
-      new View("view1", "view1_description", instrument_unit, AggregationType::kSum)};
-  std::unique_ptr<InstrumentSelector> instrument_selector{
-      new InstrumentSelector(InstrumentType::kUpDownCounter, instrument_name, instrument_unit)};
-  std::unique_ptr<MeterSelector> meter_selector{new MeterSelector("meter1", "version1", "schema1")};
-  mp.AddView(std::move(instrument_selector), std::move(meter_selector), std::move(view));
-
+  if (is_matching_view)
+  {
+    std::unique_ptr<View> view{
+        new View("view1", "view1_description", instrument_unit, AggregationType::kSum)};
+    std::unique_ptr<InstrumentSelector> instrument_selector{
+        new InstrumentSelector(InstrumentType::kUpDownCounter, instrument_name, instrument_unit)};
+    std::unique_ptr<MeterSelector> meter_selector{
+        new MeterSelector("meter1", "version1", "schema1")};
+    mp.AddView(std::move(instrument_selector), std::move(meter_selector), std::move(view));
+  }
   auto h = m->CreateDoubleUpDownCounter(instrument_name, instrument_desc, instrument_unit);
 
   h->Add(5, {});
@@ -168,4 +175,7 @@ TEST(UpDownCounterToSum, Double)
   const auto &actual = actuals.at(0);
   ASSERT_EQ(15.0, opentelemetry::nostd::get<double>(actual.value_));
 }
+INSTANTIATE_TEST_SUITE_P(UpDownCounterToSum,
+                         UpDownCounterToSumFixture,
+                         ::testing::Values(true, false));
 #endif