Full revision history on every instruction.
Every change is logged with the date, the user, and what was changed. Roll back to a previous version if needed. The audit trail shows exactly what the instruction said at any point in time – not just the current version.
PDF history trail.
Every approved version is stored as a PDF record. For audits and compliance reviews, you can produce the exact version that was live at any given date. The paper trail is automatic – not something you have to build separately.