diff --git a/local/docs/SYSTEM-STABILITY-AND-UPSTREAM-SYNC-PLAN.md b/local/docs/SYSTEM-STABILITY-AND-UPSTREAM-SYNC-PLAN.md
index 9054132da7..3c59ed4eb7 100644
--- a/local/docs/SYSTEM-STABILITY-AND-UPSTREAM-SYNC-PLAN.md
+++ b/local/docs/SYSTEM-STABILITY-AND-UPSTREAM-SYNC-PLAN.md
@@ -1,7 +1,7 @@
 # Red Bear OS — System Stability & Upstream Sync Improvement Plan
 
 **Date:** 2026-07-08
-**Branch:** 0.3.0
+**Branch:** 0.3.1
 **Source of truth:** Linux kernel 7.1 (`local/reference/linux-7.1/`)
 **Status:** Authoritative — Phase 1 COMPLETE (2026-07-08 verification), Phase 2 partially done
 
@@ -164,9 +164,9 @@ This appears already applied. If confirmed, mark as ✅.
 **Estimated time:** 1–2 hours
 **Dependencies:** None.
 
-### 1.4 Sync All Cat 2 Fork Versions to `+rb0.3.0`
+### 1.4 Sync All Cat 2 Fork Versions to `+rb0.3.1`
 
-**Context:** Branch 0.3.0 was cut but not all forks have been version-bumped. Version drift between `Cargo.toml` fields causes Cargo resolver errors and subtle type mismatches.
+**Context:** Branch 0.3.1 was cut but not all forks have been version-bumped. Version drift between `Cargo.toml` fields causes Cargo resolver errors and subtle type mismatches.
 
 **Files involved:**
 - `local/sources/base/Cargo.toml`
@@ -182,13 +182,13 @@ This appears already applied. If confirmed, mark as ✅.
 
 **Action:**
 ```bash
-./local/scripts/sync-versions.sh           # Sync Cat 1 + Cat 2 versions to 0.3.0
+./local/scripts/sync-versions.sh           # Sync Cat 1 + Cat 2 versions to 0.3.1
 ./local/scripts/sync-versions.sh --check   # Verify compliance
 ```
 
 **Verification:**
-- Every Cat 2 fork's `Cargo.toml` must have `version = "<upstream>+rb0.3.0"`
-- Every Cat 1 crate's `Cargo.toml` must have `version = "0.3.0"`
+- Every Cat 2 fork's `Cargo.toml` must have `version = "<upstream>+rb0.3.1"`
+- Every Cat 1 crate's `Cargo.toml` must have `version = "0.3.1"`
 - `cargo build` from the workspace root passes with no version mismatch warnings
 
 **Estimated time:** 15 minutes (automated)
@@ -585,7 +585,7 @@ baseline established.
 
 ### 5.1 AMD Ryzen Bare Metal Boot Validation
 
-**Context:** Red Bear OS was previously verified on Ryzen Threadripper (128-thread). This validation updates to the current 0.3.0 state and tests all subsystems.
+**Context:** Red Bear OS was previously verified on Ryzen Threadripper (128-thread). This validation updates to the current 0.3.1 state and tests all subsystems.
 
 **Hardware requirements:**
 - AMD Ryzen system (any Zen 2/3/4 generation)