Sage has released Service Update 17 for version 4.30 of MAS 90 and MAS 200. This is a broad service update that affects each of the following modules:

Accounts Payable
Bar Code
Bill of Materials
Customizer
CRM
Job Cost
Library Master
Inventory Management
E-Business Manager
Material Requirements Planning
Electronic Reporting (formerly Magnetic Media)
Paperless Office
Timecard
Visual Integrator
Purchase Order
Payroll
Sales Order

The installation file is a cumulation of all service updates for version 4.30. You can read the details of the issues address in the release notes. We only recommend you consider installing these updates if you are upgrading, installing a new system or are experiencing an issue the update is intended to resolve. Be careful to consider all of the integrated applications, enhancements and customizations you system is running. Do not take a service update installation lightly.

UPDATE: Sage has posted 941 Form 2009 Updates that must be applied after installing Service Update 17.