diff --git a/docs/EXTRACTION-ISOLATION.md b/docs/EXTRACTION-ISOLATION.md
index 8808000..530d28a 100644
--- a/docs/EXTRACTION-ISOLATION.md
+++ b/docs/EXTRACTION-ISOLATION.md
@@ -192,3 +192,13 @@ Unix resource setup executed; adversarial exhaustion was not tested. The initial
 WSL nested-virtualization warning did not prevent the terminal passing Cargo run.
 The updated public Linux archive passed relocated PDF/DOCX indexing and genuine
 Google CPU search; see [package evidence](LINUX-HEADLESS.md).
+
+## Shared workspace regression after publication
+
+At source `c692593`, `cargo test --workspace --locked -- --test-threads=1`
+completed successfully on Windows with `SEARCHI_FORCE_CPU=1` and the built
+release extraction helper configured. 159 tests passed; 26 explicit model,
+benchmark and decoder tests were ignored. The previously intermittent parent
+fixture passed in this serial run without changing product deadlines. This
+does not replace separately executed genuine Google package checks or close
+platform/GPU/visual gates.