Merge pull request #424 from signalfx/deprecation

Add deprecation notice to top README

README.md

@@ -12,36 +12,35 @@
 
 # SignalFx client libraries
 
-This repository contains legacy libraries for instrumenting Java applications and
-reporting metrics to Splunk Observability Cloud (formerly SignalFx).
+# :warning: This repository and its published libraries are deprecated
+
+This repository contains legacy libraries for reporting metrics to Splunk 
+Observability Cloud (formerly SignalFx). The only commits that will be made 
+to this repo are organizational or security related patches. No additional 
+features will be added, and the repository will be archived and the final 
+versions published on or prior to February 1, 2025.
+
+* :warning: `signalfx-codahale` will be deleted in July 2024.
+* :warning: `signalfx-yammer` will be deleted in July 2024.
+* :warning: Everything else will be archived February 1st 2025.
 
 Splunk has adopted OpenTelemetry. Use the 
 [OpenTelemetry Java SDK](https://github.com/open-telemetry/opentelemetry-java) or
 the [Splunk Distribution of OpenTelemetry Java Instrumentation](https://github.com/signalfx/splunk-otel-java)
 agent to send telemetry data to Splunk. Do not integrate `signalfx-java` 
 into new services.
 
+## Do not use this library in your project
+
+You should not use this library in new services. 
+Use [OpenTelemetry](https://github.com/open-telemetry/opentelemetry-java) to send data to Splunk instead.
+
 To send data to Splunk, you need a Splunk Observability Cloud account and organization
 API token. For more information on Observability Cloud and to create an
 account, go to [Splunk Observability](https://www.splunk.com/en_us/products/observability.html).
 
-## Language compatibility
-
-* Java 8 and higher
-
-## Using this library in your project
-
-You are discouraged from integrating this library into new services. 
-Use [OpenTelemetry](https://github.com/open-telemetry/opentelemetry-java) to send data 
-to Splunk instead.
-
 Legacy documentation is still here for posterity: [legacy-usage.md](legacy-usage.md). 
 
-## Deprecations
-
-* :warning: `signalfx-codahale` will be deleted in July 2024.
-* :warning: `signalfx-yammer` will be deleted in July 2024. 
-
 # Executing SignalFlow computations
 
 [Learn more about using SignalFlow here](signalflow.md).