TOS 7.0.1225 (x86) Official Release Update
Posted: 22 Sep 2026, 11:17
Target Users:
Users currently running TOS 7.0.0746 or later versions.
Note:
If your TOS version is TOS 6, please refer to the TOS 7 update instructions first.
Important: This update is only applicable to TOS 7.0.0746 and newer. Users with older versions must first upgrade to 7.0.0746 before applying this update.
Here, we sincerely thank @Alak, @rfbjr, @ambul, @Crashoveride, @Gremlin, @Flyingbike, @crisisacting, @Pe6yc, @mnewland, @apvm, @DmMc, @sianderson, @Asdrubal, @Nitrokalel and others for your sharing and feedback. Your support helped us quickly identify and fix multiple issues.
Release Notes:
This update adopts a phased gray release strategy to ensure stability across different device models and network environments.
Phase 1 (Starting Today): The manual update package is now available for download on our forum. It will be rolled out in batches based on system version, device model, and region.
Phase 2 (In One Week): The full online push will officially begin. At that time, all users will receive an update notification and can complete the update by following the on-screen prompts.
Update Notes
Bug Fixes:
1. Fixed the issue where the system might display the "Deleting" status for a long time when restarting after deleting the cache.
2. Fixed the issue where multiple message notifications might be triggered when a hot spare disk automatically takes over during storage pool degradation.
3. Fixed the issue where the disk page might display "Failed to retrieve data" after a disk was removed.
4. Fixed the issue where the storage pool might display an incorrect number of member disks after a disk was removed from the pool and a hot spare disk took over.
5. Fixed the issue where the page automatically scrolled up when customizing the SMB configuration.
6. Fixed the issue where OTP verification was still required at the next login after a trusted device had been selected.
7. Fixed the issue where the task progress might go backwards when copying files.
Important Information:
1.Updating the system theoretically will not affect the data on your hard drives, but for safety, please make sure to back up your data in advance.
2.Before updating, ensure that your primary volume (usually volume1) has at least 3GB of available space. Insufficient storage space may cause the update to fail.
3.After the update, the IP address of your TNAS may change. Please use the TNAS PC desktop client to search for and reconnect to the device.
Update Procedure:
1.Download TOS 7.0.1225 update package (Due to the need to optimize the temperature alarm strategy for certain device models, the update package will be re-released after optimization is completed.);
2.Go to TOS > Control Panel > General Settings > System > Update;
3.Select "Manual Update" and upload the downloaded update package file;
4.Follow the prompts to complete the update;
5.After the system update is complete, please refresh your browser;
6.The TNAS IP address may change after the update. If you cannot connect to your TNAS using the previous IP address, use the TNAS PC client to search for the new IP address;
Client Downloads:
1. Download TNAS PC 5.2.548 for Windows OS.
- MD5: 72701B52336AF9FD8B97A6BE9D5D5A7C
2. Download TNAS PC 5.2.548 for macOS (x86 architecture).
- MD5: BAA63A179C43F73965EA9C31EEB9D61E
3. Download TNAS PC 5.2.548 for macOS (ARM architecture).
- MD5: BB933DA867058884C4ADFE44EAD24AFC
4. Download TNAS PC 5.2.548 for Linux.
- MD5: 06FE93F9FFE47147854A34F28D57FCC2
5. TNAS mobile for Android: Please search for "TNAS mobile" in the app store to install.
6. TNAS Mobile for iOS: Please search for "TNAS mobile" in the App Store to install.
Users currently running TOS 7.0.0746 or later versions.
Note:
If your TOS version is TOS 6, please refer to the TOS 7 update instructions first.
Important: This update is only applicable to TOS 7.0.0746 and newer. Users with older versions must first upgrade to 7.0.0746 before applying this update.
Here, we sincerely thank @Alak, @rfbjr, @ambul, @Crashoveride, @Gremlin, @Flyingbike, @crisisacting, @Pe6yc, @mnewland, @apvm, @DmMc, @sianderson, @Asdrubal, @Nitrokalel and others for your sharing and feedback. Your support helped us quickly identify and fix multiple issues.
Release Notes:
This update adopts a phased gray release strategy to ensure stability across different device models and network environments.
Phase 1 (Starting Today): The manual update package is now available for download on our forum. It will be rolled out in batches based on system version, device model, and region.
Phase 2 (In One Week): The full online push will officially begin. At that time, all users will receive an update notification and can complete the update by following the on-screen prompts.
Update Notes
Bug Fixes:
1. Fixed the issue where the system might display the "Deleting" status for a long time when restarting after deleting the cache.
2. Fixed the issue where multiple message notifications might be triggered when a hot spare disk automatically takes over during storage pool degradation.
3. Fixed the issue where the disk page might display "Failed to retrieve data" after a disk was removed.
4. Fixed the issue where the storage pool might display an incorrect number of member disks after a disk was removed from the pool and a hot spare disk took over.
5. Fixed the issue where the page automatically scrolled up when customizing the SMB configuration.
6. Fixed the issue where OTP verification was still required at the next login after a trusted device had been selected.
7. Fixed the issue where the task progress might go backwards when copying files.
Important Information:
1.Updating the system theoretically will not affect the data on your hard drives, but for safety, please make sure to back up your data in advance.
2.Before updating, ensure that your primary volume (usually volume1) has at least 3GB of available space. Insufficient storage space may cause the update to fail.
3.After the update, the IP address of your TNAS may change. Please use the TNAS PC desktop client to search for and reconnect to the device.
Update Procedure:
1.Download TOS 7.0.1225 update package (Due to the need to optimize the temperature alarm strategy for certain device models, the update package will be re-released after optimization is completed.);
2.Go to TOS > Control Panel > General Settings > System > Update;
3.Select "Manual Update" and upload the downloaded update package file;
4.Follow the prompts to complete the update;
5.After the system update is complete, please refresh your browser;
6.The TNAS IP address may change after the update. If you cannot connect to your TNAS using the previous IP address, use the TNAS PC client to search for the new IP address;
Client Downloads:
1. Download TNAS PC 5.2.548 for Windows OS.
- MD5: 72701B52336AF9FD8B97A6BE9D5D5A7C
2. Download TNAS PC 5.2.548 for macOS (x86 architecture).
- MD5: BAA63A179C43F73965EA9C31EEB9D61E
3. Download TNAS PC 5.2.548 for macOS (ARM architecture).
- MD5: BB933DA867058884C4ADFE44EAD24AFC
4. Download TNAS PC 5.2.548 for Linux.
- MD5: 06FE93F9FFE47147854A34F28D57FCC2
5. TNAS mobile for Android: Please search for "TNAS mobile" in the app store to install.
6. TNAS Mobile for iOS: Please search for "TNAS mobile" in the App Store to install.

