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v8.5.2.33 Release Notes (26-May-2021)

1. We have recently confirmed a critical issue that affecting v8.3.6.118 to v8.5.0.127. Refer to our latest Upgrade Advisory: for more information.
2. You are recommended to upgrade to this version if the enhancements or the bug fixes listed below are beneficial to you. Otherwise, you may stay with your current version. All users are recommended to first test running this release on a testing server before actually upgrading the production servers.

Limitation / Known Issue of This Version

Deployment / Upgrade

  • For multi-domain SSL certificates added to CBS before v7.17.0.30, users are required to re-add the SSL certificates to CBS v7.17.0.30 or above, before the certificates can be used on sub-admins accounts.


  • 1. Besides the availability of re-branding option, the license key must have valid maintenance in order to build any v8 branded AhsayCBS/OBM/ACB installer.
  • 2. If you've customized cbs.css in the previous version, please manually redo the CSS customization upon upgraded to this latest version.

This release contains the major features listed below:



Operating systems

  • Support CBS on Debian 9 (ref: T-21702)
  • Support CBS on Debian 10 (ref: T-30504)


  • Run Backupset Data Migration (v6) in Separate Process (ref: T-30106)

System maintenance

  • Centralize PNS related files and cleanup unnecessary deployment file (ref: T-29795)
  • Backupset Data Migration (v6) - Refine Data Validation (Stage 4) changed to run in between Server Data Migration (Stage 2) and Client Data Migration (Stage 3) (ref: T-26803)

User Experiences

  • Redesign - CBS Installer Download Page (ref: T-30557)

AhsayOBM / AhsayACB / AhsayMobile


  • Allow users to update Mobile Backup Destination path (ref: T-29717)
  • Update default destination folder path in macOS and Linux (ref: T-29718)
  • Device backup destination matching (ref: T-30646)

Operating Systems

  • Support OBM on Debian 9 (ref: T-30772)
  • Support OBM on Debian 10 (ref: FAF-678-13620, FKX-690-55595, MYI-432-49451, NUL-817-58386, QFV-874-57139, T-26508)
  • Support OBC on macOS Big Sur (ref: CIB-650-41734, DBV-601-54275, FIL-562-78700, KFT-708-32442, LTA-997-59914, PJC-261-95934, QDX-779-80946, REF-549-59466, SIZ-516-96829, SLV-628-82853, WJH-291-44518, XUZ-830-16747, T-29145)


  • Enhanced File Listing Logic to list all Files Attributes in a go during Backup (ref: T-29553)
  • Enhanced Index Files Handling Logic to reduce Download/Reupload to Backup Destination (ref: T-30452)

Bug Fix


  • CBS - “” JSON API gets error “Can not construct instance of …” error for classes other than “CloudSource”(ref: T-19203)

Backup Destination

  • OBM - Backup with multiple Destination hit “Failed to initialize RemoteBDB.Cloud. Error=Database Index ”…/index.db“ in use (ref: T-27741)
  • OBM - Run on Server Cloud File Backupsets from OneDrive for Business encounters “The server encountered an error processing the request” error on random files” ref: TGP-932-71179, T-30633)
  • OBM - File Backupset to Google Drive gets error “Failed to check the integrity of the target ”%Destination_ID%.“ (ref: ZQW-983-41316, T-30790)

General / Miscellaneous

  • CBS - French CBS, Policy Group > Default Value & Preempted Value > Others cannot modify or create new settings (ref: TUK-950-95083, WXM-967-23229, T-30314)

Application specific backup - Hyper-V

  • OBM - Hyper-V 2016/2019 Incremental backup, restoring the delta backup job only resulted in content of the full backup job (ref: WYS-677-56556, T-30181, Upgrade Advisory)

Application specific backup - MS Exchange Mail

  • OBM - Exchange 2016 Mail Level backup gets “Read timed out” error when exporting items or logging in to EWS (ref: KCR-307-78428, ZLN-160-48429, T-30460)

Application specific backup - MSSQL

  • OBM - With backup scheduled at 23:30 missed, scheduler log shows null error and cannot determine next job's start time (ref: MFC-965-36684, T-30374)

Application specific backup - Office365

  • CBS - Office365 Run on Server Backup gets error “Reason=java.sql.SQLException: path to '%Temporary folder%/CloudManagersqlite.tmp': '%Temp folder%' does not exist” (ref: QYA-384-14664, T-30285)
  • CBS - Office365 Backup gets “java.lang.NumberFormatException”error when language setting is Simplified Chinese and encounters connection issue (ref: T-29398)
  • CBS, OBC - Office365 Backup Source/Restore Explorer unable to list files from directory if its name contains apostrophe (') (ref: CEK-792-33172, T-30393)
  • CBS, OBC - Office365 Backup gets “Failed to load sPath=''. Reason='ListAllSitesStatus=ALLOW but fail to list sites'” error (ref: FMW-221-88043, FZC-788-51600, TNB-364-62759, XYW-173-82612, T-30220)
  • CBS, OBC - Office365 Backup keep retrying with ”[EwsService.getItems] Retry after “XX” seconds“ and “Read timed out” (ref: RBV-103-68044, T-30230)
  • CBS, OBC - Office365 Backup gets “400 Bad Request” error (ref: AWX-791-46258, BID-321-59013, ENQ-144-90911, IQB-953-25593, JLW-976-29077, LWS-755-41778, NBV-398-48458, NVX-572-66088, TCI-991-16404, VLB-132-12326, WCN-959-66990, XYI-844-70018, YVH-542-48623, T-30560)
  • CBS, OBC - Office365 SharePoint Backup gets “Connection reset” error (ref: WCN-959-66990, T-30645)
  • CBS, OBC - Office365 Backup gets “Fail to process … Reason=Unknown item … found” (ref: NES-216-95232, UJY-706-37875, T-29942)
  • CBS, OBC - Office365 Backup encounters ”[New File] File=\ %File_Path%“ Error=“com.independentsoft.share.bk: Connection reset” (ref: WMI-206-84572, T-30575)
  • CBS, OBC - Office365 Backup keeps getting the “Unable to generate Delta File … Target is not a file …” warnings (ref: LTG-903-42433, T-30720)

Application specific backup - Windows System / System State

  • OBM - Scheduled Windows System Backup start in every minute. (ref: YUP-511-72841, T-29526)
  • OBM - Windows Backup gets ”…size incorrect (Expected=XXX Retrieved=YYY)“ error with slightly different sizes (ref: T-20201)

Application specific backup - VMWare

  • OBM - VMware vCenter 6.7 Restore gets error “Failed to obtain symlink target for bfSymLink='[BackupFile][Version=10130][ClientPath=01..” (ref: T-30323)

File backup

  • OBM - Backup halted after running multiple “Quota Exceeded” backup jobs in a row (ref: NXX-227-44753, T-30521)
  • OBM - Backup to Wasabi has connection retries & some bak files sized 0 discovered during File Validation (ref: FRC-931-65345, YCO-978-20471, T-30360)
  • OBM - Application crashed ”# Problematic frame: # V [jvm.dll+0x139142]“ when backing up locked files on Network Location (ref: DLS-205-60084, RCO-225-37279, YAN-706-29323, T-30447)
  • OBC - Backup generated empty folder with “Local@XXX” file name in temp directory for every file backup job with CBS OR Local destination (ref: T-29818)

Auto Update

  • OBM - OBM AUA does not go through Proxy when connecting to CBS, cannot fetch auto update index.xml (ref: NZS-556-95238, T-30631)


  • CBS - Replication does not replicate the Configuration and System Files (ref: HKO-958-84976, T-30309)

Reporting / Email report

  • CBS - After upgrade from CBS to v8.5.0.63 backup set statistics reset to zero (ref: T-30403)

Synology / QNAP OBM

  • OBM - When view log entries on QNAP QTS 4.5 gets error “DataTables warning: table id =reportLogViewerTable - Unable to load …” (ref: T-30491)

System maintenance

  • CBS - Cannot access System Settings - Advanced, Backup server stopped due to proxy cannot be configured to allow connections to Ahsay License Server (ref: LQJ-613-62088, T-30329)
  • CBS - Encounters NullPointerException when removing user, user & user home folder not being deleted (ref: DNO-871-62687, T-30349)
  • CBS - CBS modifies cbssvc.ini incorrectly when upgrading CBS from v7 on Ubuntu 18.04 (ref: TXL-321-42980, T-30705)
  • CBS - CBS server gets 100% CPU usage after upgrading to v8.5.0.127 (ref: MOA-829-55283, T-30596)

Product Abbrieviation:

  • AhsayACB - ACB
  • AhsayOBM - OBM
  • AhsayCBS - CBS
  • AhsayACB & AhsayOBM - OBC
  • (AhsayMobile) Mobile Backup Server - MBS
public/resources/release_notes_v85233.txt · Last modified: 2021/06/11 16:49 by clarence.lee

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