diff --git a/docs/mcpgodebug.md b/docs/mcpgodebug.md
index 714abfe8..f4283563 100644
--- a/docs/mcpgodebug.md
+++ b/docs/mcpgodebug.md
@@ -18,6 +18,15 @@
 
 ## `MCPGODEBUG` history
 
+### 1.6.0
+
+Options listed below will be removed in the 1.8.0 version of the SDK.
+
+- `seterroroverwrite` added. If set to `1`, `SetError` will always overwrite
+  `Content` with the error text, restoring the previous behavior. The default
+  behavior was changed to preserve existing `Content` if it has already been
+  populated.
+
 ### 1.4.1
 
 Options listed below will be removed in the 1.6.0 version of the SDK.
diff --git a/internal/docs/mcpgodebug.src.md b/internal/docs/mcpgodebug.src.md
index e13500b5..009dc14c 100644
--- a/internal/docs/mcpgodebug.src.md
+++ b/internal/docs/mcpgodebug.src.md
@@ -17,6 +17,15 @@
 
 ## `MCPGODEBUG` history
 
+### 1.6.0
+
+Options listed below will be removed in the 1.8.0 version of the SDK.
+
+- `seterroroverwrite` added. If set to `1`, `SetError` will always overwrite
+  `Content` with the error text, restoring the previous behavior. The default
+  behavior was changed to preserve existing `Content` if it has already been
+  populated.
+
 ### 1.4.1
 
 Options listed below will be removed in the 1.6.0 version of the SDK.