merged from upstream

Author: malkia

CHANGELOG.md

@@ -24,6 +24,9 @@ Increment the:
   * To enable with CMake: `-DWITH_OTLP_GRPC_CREDENTIAL_PREVIEW=ON`
   * To enable with Bazel: `--@io_opentelemetry_cpp//exporters/otlp:with_otlp_grpc_credential_preview=true`
 
+* [BUILD] Upgrade opentelemetry-proto to 1.7.0
+  [#3443](https://github.com/open-telemetry/opentelemetry-cpp/pull/3443)
+
 ## [1.21 2025-05-28]
 
 * [BUILD] Remove WITH_ABSEIL

cmake/opentelemetry-proto.cmake

@@ -49,7 +49,7 @@ else()
          "opentelemetry-proto=[ \\t]*([A-Za-z0-9_\\.\\-]+)")
         set(opentelemetry-proto "${CMAKE_MATCH_1}")
       else()
-        set(opentelemetry-proto "v1.6.0")
+        set(opentelemetry-proto "v1.7.0")
       endif()
       unset(OTELCPP_THIRD_PARTY_RELEASE_CONTENT)
     endif()