Document Java memory section and add Copilot Memory links across SDK READMEs

dotnet/README.md

@@ -419,6 +419,7 @@ When enabled, sessions emit compaction events:
 ## Memory
 
 Sessions can opt into persistent memory, allowing the agent to read and write memory across turns. Memory is configured per session and applies to both `CreateSessionAsync` and `ResumeSessionAsync`.
+For more background, see [About GitHub Copilot Memory](https://docs.github.com/en/copilot/concepts/agents/copilot-memory).
 
 ```csharp
 var session = await client.CreateSessionAsync(new SessionConfig

go/README.md

@@ -511,6 +511,7 @@ information across turns. Provide a `MemoryConfiguration` on session create or r
 when omitted, the runtime default applies. In the default `ModeCopilotCli` client mode the
 SDK leaves `Memory` unset so the runtime applies its own default, while `ModeEmpty`
 defaults `Memory` to disabled unless you set it explicitly.
+For more background, see [About GitHub Copilot Memory](https://docs.github.com/en/copilot/concepts/agents/copilot-memory).
 
 ```go
 // Enable memory for a session

java/README.md

@@ -132,6 +132,40 @@ Or run it directly from the repository:
 jbang https://github.com/github/copilot-sdk/blob/main/java/jbang-example.java
 ```
 
+## Memory
+
+Sessions can opt into persistent memory, allowing the agent to read and write memory across turns. Memory is configured per session and applies to both `createSession` and `resumeSession`.
+For more background, see [About GitHub Copilot Memory](https://docs.github.com/en/copilot/concepts/agents/copilot-memory).
+
+```java
+import com.github.copilot.rpc.MemoryConfiguration;
+import com.github.copilot.rpc.PermissionHandler;
+import com.github.copilot.rpc.ResumeSessionConfig;
+import com.github.copilot.rpc.SessionConfig;
+
+// Enable memory for a new session
+var session = client.createSession(new SessionConfig()
+    .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)
+    .setModel("gpt-5")
+    .setMemory(new MemoryConfiguration().setEnabled(true))
+).get();
+
+// Disable memory for a new session
+var sessionNoMemory = client.createSession(new SessionConfig()
+    .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)
+    .setModel("gpt-5")
+    .setMemory(new MemoryConfiguration().setEnabled(false))
+).get();
+
+// Configure memory while resuming
+var resumed = client.resumeSession(sessionId, new ResumeSessionConfig()
+    .setOnPermissionRequest(PermissionHandler.APPROVE_ALL)
+    .setMemory(new MemoryConfiguration().setEnabled(true))
+).get();
+```
+
+When `memory` is left unset, no memory configuration is sent and the runtime default applies. In the default `CopilotClientMode.COPILOT_CLI` the SDK leaves `memory` unset so the runtime applies its own default, while `CopilotClientMode.EMPTY` defaults `memory` to disabled unless you set it explicitly.
+
 ## Using experimental APIs
 
 Some SDK APIs are marked as experimental with `@CopilotExperimental`. These APIs may change or be removed in future versions without notice.
@@ -274,4 +308,3 @@ mvn jacoco:prepare-agent@wire-up-coverage-instrumentation antrun:run@print-test-
 ## License
 
 MIT — see [LICENSE](LICENSE) for details.
-

nodejs/README.md

@@ -684,6 +684,7 @@ information across turns. Provide a `memory` configuration on session create or
 when omitted, the runtime default applies. In the default `"copilot-cli"` client mode the
 SDK leaves `memory` unset so the runtime applies its own default, while `"empty"` mode
 defaults `memory` to disabled unless you set it explicitly.
+For more background, see [About GitHub Copilot Memory](https://docs.github.com/en/copilot/concepts/agents/copilot-memory).
 
 ```typescript
 // Enable memory for a session

python/README.md

@@ -505,6 +505,7 @@ When enabled, sessions emit compaction events:
 ## Memory
 
 Sessions can opt into persistent memory, allowing the agent to read and write memory across turns. Memory is configured per session and applies to both `create_session` and `resume_session`.
+For more background, see [About GitHub Copilot Memory](https://docs.github.com/en/copilot/concepts/agents/copilot-memory).
 
 ```python
 async with await client.create_session(

rust/README.md

@@ -574,6 +574,7 @@ The CLI emits `session.compaction_start` / `session.compaction_complete` events
 ### Memory
 
 Configure the runtime memory feature for a session:
+For more background, see [About GitHub Copilot Memory](https://docs.github.com/en/copilot/concepts/agents/copilot-memory).
 
 ```rust,ignore
 use github_copilot_sdk::types::{MemoryConfiguration, SessionConfig};