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INSTRUCTIONS.md

@@ -1,5 +1,10 @@
 # Development Instructions
 
+## Documentation maintenance
+
+- Keep [CHANGELOG.md](D:/CODING/mrp-codex/CHANGELOG.md) updated whenever shipped functionality, architecture expectations, deployment behavior, or user-facing workflows materially change.
+- If a change invalidates [README.md](D:/CODING/mrp-codex/README.md), [STRUCTURE.md](D:/CODING/mrp-codex/STRUCTURE.md), [ROADMAP.md](D:/CODING/mrp-codex/ROADMAP.md), or [UNRAID.md](D:/CODING/mrp-codex/UNRAID.md), update those files in the same change set.
+
 ## Current milestone
 
 This repository implements the platform foundation milestone:
@@ -14,6 +19,7 @@ This repository implements the platform foundation milestone:
 - purchase orders with quick actions and searchable vendor/SKU entry
 - purchase orders restricted to inventory items flagged as purchasable
 - purchase receiving foundation with inventory posting and receipt history
+- branded sales and purchasing PDFs through the shared Puppeteer document pipeline
 - shipping shipments linked to sales orders and packing-slip PDFs
 - Dockerized single-container deployment
 - Puppeteer PDF pipeline foundation
@@ -50,10 +56,10 @@ This repository implements the platform foundation milestone:
 
 ## Next roadmap candidates
 
-- sales and purchasing document templates
 - shipping labels, bills of lading, and logistics attachments
 - projects and program management
 - manufacturing execution
 - vendor invoice/supporting-document attachments and broader vendor-side operational depth
+- sales approvals and document revision history
 - planning and gantt scheduling with live project/manufacturing data
 - broader audit and operations maturity