lookup tables for product versions

get-started/versioning-availability.md

@@ -6,6 +6,8 @@ mapped_pages:
 
 # Understanding versioning and availability
 
+On this page, you'll learn about our versioning systems, how to understand how we talk about versions and feature availability in our documentation, and where to find docs for your product version.
+
 ## Elastic Stack versioning
 
 {{es}} and the core components of the Elastic Stack use a semantic versioning scheme. This scheme consists of three numbers separated by periods in the form `X.Y.Z`, for example: `9.0.0`.
@@ -108,4 +110,62 @@ deployment:
 
 :::{tip}
 For contributors and those interested in the technical details, see the [Elastic docs syntax guide](https://elastic.github.io/docs-builder/syntax/applies/) for more information on how these badges are implemented.
-:::
+:::
+
+## Find docs for your product version
+
+In April 2025, we released our new documentation site. This site includes documentation for our latest product versions.
+
+You can access the previous version of a page, where available, by clicking the **View previous version** link in the sidebar. 
+
+% not sure about curator
+
+The following products versions are documented on this site:
+
+#### Core products and deployment methods
+
+| Product | Version |
+| --- | --- |
+| {{stack}}<br><br>Includes {{es}}, {{kib}}, {{ls}}, {{fleet}}, <br>{{agent}}, Beats, APM, and query languages | 9.0.0+ |
+| Security solution | 9.0.0+ |
+| Observability solution | 9.0.0+ |
+| {{serverless-full}} (all project types) | All |
+| {{ech}} | All*  |
+| {{ece}} | 4.0.0+ |
+| {{eck}} | 3.0.0+ |
+
+\* Excludes release notes before January 2025
+
+#### Schemas, libraries, and tools
+
+| Product | Version |
+| --- | --- |
+| Elastic Common Schema | 9.0.0+ |
+| ECS logging Java library | 1.x+ |
+| Other ECS logging libraries | All |
+| {{es}} API clients | 9.0.0+ |
+| {{es}} for Apache Hadoop | 9.0.0+ |
+| Curator | 8.0+ | 
+| Elastic Cloud Control (ECCTL) | 1.14+ |
+| Elastic Serverless Forwarder | All | 
+| Elastic integrations | All |
+| Elastic Search UI library | All |
+
+#### APM agents and tools
+
+| Product | Version |
+| --- | --- |
+| APM Android agent | 1.x |
+| APM .NET agent | 1.x |
+| APM Go agent | 2.x |
+| APM iOS agent | 1.x | 
+| APM Java agent | 1.x | 
+| APM Node.js agent | 4.x |
+| APM PHP agent | All |
+| APM Python agent | 6.x |
+| APM Ruby agent | 4.x | 
+| APM Real User Monitoring JavaScript agent | 5.x |
+| APM attacher for Kubernetes | All |
+
+
+