README.md in opentelemetry-sdk-0.15.0 vs README.md in opentelemetry-sdk-0.16.0

@@ -54,11 +54,11 @@
 
 ## How can I get involved?
 
 The `opentelemetry-sdk` gem source is [on github][repo-github], along with related gems including `opentelemetry-api`.
 
-The OpenTelemetry Ruby gems are maintained by the OpenTelemetry-Ruby special interest group (SIG). You can get involved by joining us on our [gitter channel][ruby-gitter] or attending our weekly meeting. See the [meeting calendar][community-meetings] for dates and times. For more information on this and other language SIGs, see the OpenTelemetry [community page][ruby-sig].
+The OpenTelemetry Ruby gems are maintained by the OpenTelemetry-Ruby special interest group (SIG). You can get involved by joining us in [GitHub Discussions][discussions-url] or attending our weekly meeting. See the [meeting calendar][community-meetings] for dates and times. For more information on this and other language SIGs, see the OpenTelemetry [community page][ruby-sig].
 
 ## License
 
 The `opentelemetry-sdk` gem is distributed under the Apache 2.0 license. See [LICENSE][license-github] for more information.
 
@@ -68,6 +68,6 @@
 [repo-github]: https://github.com/open-telemetry/opentelemetry-ruby
 [license-github]: https://github.com/open-telemetry/opentelemetry-ruby/blob/main/LICENSE
 [examples-github]: https://github.com/open-telemetry/opentelemetry-ruby/tree/main/examples
 [ruby-sig]: https://github.com/open-telemetry/community#ruby-sig
 [community-meetings]: https://github.com/open-telemetry/community#community-meetings
-[ruby-gitter]: https://gitter.im/open-telemetry/opentelemetry-ruby
+[discussions-url]: https://github.com/open-telemetry/opentelemetry-ruby/discussions