We will drop support for our oldest supported C++ standard when one of the following happens:
All supported compilers* default to a newer version
When 10 years pass since the standard's release date
Example: In 2023, if all supported compilers use C++17 as their default, then we can drop support for C++14. Otherwise, we'll need to wait until 2024, which would be 10 years after C++14 was released.
When abseil no longer supports C++14 and requires C++17, so will gtest, gmock, grpc, overall forcing opentelemetry-cpp to drop C++14 as well.
According to the Abseil doc:
support for C++14 will be revisited on 2024-12-15:
Per policies:
C++ 14 will be dropped for C++17:
When abseil no longer supports C++14 and requires C++17, so will gtest, gmock, grpc, overall forcing opentelemetry-cpp to drop C++14 as well.
We need to plan for this