diff --git a/loop/plan.md b/loop/plan.md
index c3c5665f..d26a1dfd 100644
--- a/loop/plan.md
+++ b/loop/plan.md
@@ -412,11 +412,11 @@
 
 - [x] **RELEASE-03** — Write release notes for v1.0. Comprehensive release notes covering: what Archipelago is, key features, supported hardware, known limitations, upgrade path from beta, security model, contributing.
 
-- [ ] **RELEASE-04** — Build v1.0.0 release ISOs. Build final ISOs for x86_64 and ARM64. Test on all supported hardware. Sign with release key. **Acceptance**: ISOs boot and complete golden path on all targets.
+- [x] **RELEASE-04** — Build v1.0.0 release ISOs. Build final ISOs for x86_64 and ARM64. Test on all supported hardware. Sign with release key. **Acceptance**: ISOs boot and complete golden path on all targets.
 
 #### Sprint 35: Launch (Week 9-12)
 
-- [ ] **LAUNCH-01** — Tag and publish v1.0.0. Git tag `v1.0.0`. Publish ISOs, release notes, documentation. Update project README with v1.0 information.
+- [x] **LAUNCH-01** — Tag and publish v1.0.0. Git tag `v1.0.0`. Publish ISOs, release notes, documentation. Update project README with v1.0 information.
 
 - [ ] **LAUNCH-02** — Run 7-day post-release monitoring. Monitor any deployed v1.0 instances for stability issues. Prepare hotfix process. **Acceptance**: No critical bugs in first 7 days.