There's another issue: when using the fixed version of the exporter with OTel 1.15, I consistently get the following warning: ...\site-packages\werkzeug\serving.py:716: ResourceWarning: unclosed self.socket = socket.fromfd(fd, address_family, socket.SOCK_STREAM) ResourceWarning: Enable tracemalloc to get the object allocation traceback

I've determined that no commit in exporter 1.0.0b11 has caused this. It's too early to know. But it seems to be an issue with how opentelemetry-instrumentation-flask==0.36b0 or opentelemetry-instrumentation-wsgi==0.36b0 use Werkzeug. I've confirmed the fixed version of the exporter does still send telemetry correctly. However, since the new version needs to be pinned to 1.15, we'll be encouraging people to use 1.15 seems to have some issue that needs to be addressed.

I am not able to release the exporter as is because of the memory issue with OTel 1.15. Instead, we can pin the exporter to 1.12