ReadyNAS OS V6.6.0 Release Notes:
RN102, RN104 & RN2120 systems running firmware older than 6.2.1 should first update to 6.2.4. Then update from 6.2.4 to 6.5.2. Finally, update from 6.5.2 to 6.6.0.
All other systems can update directly to 6.6.0.
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 / RN516 / RN716x / RN526X / RN626X / RN3130 / RN3138 / RN3220 / RN4220/ RR3312 / RR4312X)

New Features:

- ReadyDR - A new disaster recovery service that does block-level replication of share snapshots. (x86 systems only - not available on RN10x/20x/21x/2120)
- VLAN virtual network adapter support.

Improvements:

- Amazon Cloud Drive backup share is now optional.
- Snapshot pruning on full volumes should now retain at least the two most recent snapshots on all shares and LUNs.
- Added support for configurable SNMP location and contact.
- App uninstall process improved to remove unused dependencies.
- Updated OS core base (from Debian 7 to 8).

Bug Fixes:

1. Added a couple of security updates. (cURL, Linux kernel).
2. Fixed network tab unnecessarily requiring an IPv6 gateway address.
3. Fixed a rare issue where a network bond many be missing one member after a reboot.
4. Fixed Wake-on-LAN support. (RN312/RN314/RN316).
5. Fixed an issue where snapshots could be skipped during DST adjustments.
6. Fixed an issue where continuous snapshots would still be taken after the snapshot pruning threshold had been exceeded.
7. Fixed issue where user home folder snapshot settings would get reset after upgrade.
8. Fixed an issue where ADS groups would show a GID instead of the group name in the GUI on new shares.
9. Adjusted the ADS realm name restrictions to allow number based labels.
10. Fixed an issue where changing share ownership would silently fail.
11. Fixed a WSD memory leak when responding to network devices that issued invalid requests.
12. Fixed disks always spinning up immediately with disk spindown enabled.
13. Fixed some cases where formatting a USB drive would fail.
14. Fixed a system management crash when encountering bad rsync configuration.
15. Fixed a potential crash during shutdown if one of the network interfaces failed to initialize. (RN202/RN204/RN212/RN214).
16. Updated the drive monitoring tools to work with the modern drive standards.

Warnings:

- Devices updated with 6.6.0 firmware should not be downgraded to earlier firmware versions.

Known Issues:

- NETGEAR apps not supported on upgrade: NETGEAR app compatibility with ReadyNASOS 6.6.0
- Community apps not supported on upgrade: Community app compatibility with ReadyNASOS 6.6.0