Welcome to RHR's Knowledge Base
Current Supported Version of SmartSDR: 4.1.5
RHR Knowledge Base
Account and Billing
Last updated on 23 Oct, 2025
How pricing works, with examples
License Requirements
π Technician-class licensees are now accepted!
Membership tiers and pricing
Upgrading to PremiumDX
Resetting your password
RHR Youth Program
Contacting support
Update Credit Card Information
How to update/remove credit card information