CHANGELOG

Author: marcalff

CHANGELOG.md

@@ -24,6 +24,17 @@ Increment the:
 * [SDK] Update default exemplar reservoir size for exponential histograms
   [#3551](https://github.com/open-telemetry/opentelemetry-cpp/pull/3551)
 
+* [SDK] View should not have a unit
+  [#3552](https://github.com/open-telemetry/opentelemetry-cpp/pull/3552)
+
+Breaking changes:
+
+* [SDK] View should not have a unit
+  [#3552](https://github.com/open-telemetry/opentelemetry-cpp/pull/3552)
+  * The `unit` parameter has been removed from the `View` constructor
+    and `ViewFactory::Create` methods.
+  * Please adjust SDK configuration code accordingly.
+
 ## [1.22 2025-07-11]
 
 * [DOC] Udpate link to membership document

examples/prometheus/main.cc

@@ -66,7 +66,7 @@ void InitMetrics(const std::string &name, const std::string &addr)
 
   auto meter_selector = metrics_sdk::MeterSelectorFactory::Create(name, version, schema);
 
-  auto sum_view = metrics_sdk::ViewFactory::Create(counter_name, "description", counter_unit,
+  auto sum_view = metrics_sdk::ViewFactory::Create(counter_name, "description",
                                                    metrics_sdk::AggregationType::kSum);
 
   p->AddView(std::move(instrument_selector), std::move(meter_selector), std::move(sum_view));
@@ -80,8 +80,8 @@ void InitMetrics(const std::string &name, const std::string &addr)
 
   auto histogram_meter_selector = metrics_sdk::MeterSelectorFactory::Create(name, version, schema);
 
-  auto histogram_view = metrics_sdk::ViewFactory::Create(
-      histogram_name, "description", histogram_unit, metrics_sdk::AggregationType::kHistogram);
+  auto histogram_view = metrics_sdk::ViewFactory::Create(histogram_name, "description",
+                                                         metrics_sdk::AggregationType::kHistogram);
 
   p->AddView(std::move(histogram_instrument_selector), std::move(histogram_meter_selector),
              std::move(histogram_view));