ReadyNAS OS V6.7.1 Release Notes.

RN102 & RN104 systems running firmware older than 6.2.1 should first update to 6.2.5, then update from 6.2.5 to 6.7.1. 
RN2120 systems running firmware older than 6.2.1 should first update to 6.2.4, then update from 6.2.4 to 6.7.1. 
All other systems can update directly to 6.7.1.

For instructions on updating your firmware, see the ReadyNAS OS 6: Updating Firmware article.

Download Link:

arm (RN102 / RN104 / RN202 / RN204 / RN212 / RN214 / RN2120)
x86_64 (RN312 / RN314 / RN316 / RN422 / RN424 / RN516 / RN524X / RN526X / RN528X /  RN626X / RN628X / RN716X /RN3130 / RN3138 / RN3220 / RN4220/ RR3312 / RR4312X / RR4360)

The following are some items to look forward to in 6.7.1:

New Features:

• Expanded FlexRAID configurable options.
• Support for single disk expansion.
• Support for RAID 50 and 60.
• Support for Global Host Spare.
• SAS Expansion support for the RR3312 and RR4312.
• Google Dirve Support.
• Amazon AWS Support.

Improvements:

• Visual Volume Configuration.
• Updated to the latest Dropbox.
• iSCSI Thin LUN capacity monitoring.
• ReadyNAS Apps expand support to thrid-party repos within the app.
• ReadyNAS Apps now shows more info in the installation progress.
• Updated Linux Kernel from 4.1 to 4.4.
• Support for newer hardware.

Bug Fixes:

• Updated AV config to prevent reporting false postitives.
• ADS Envrionment performance.
• ReadyDR support for longer snapshot names.
• Security fix for Command Injection during the setup of Backup Jobs || Various Security fixes to Backup Jobs.
• Some Amazon Cloud Drive sync fixes.
• Middleware NML call Security fix.
• ReadyCLOUD VPN statbility fix.
• Hourly snaoshots are taken when disk spin down is enabled.
• Various MTP Backup fixes.
• Removed the c_, m_, b_, and r_ username and share name limitations.
• Prevent portocol port conflicts.
• Switching network from DHCP to Static will retain DNS.

Warnings:

• Devices updated with 6.7.1 firmware should not be downgraded to earlier firmware versions.

Known Issues:

• No Dropbox configuration getting migrated to the new version and will need to be reconfigured.