Release Notes for Arq Backup Version 5.17.2

December 11, 2020

Changes

• Changed the procedure for adding Dropbox as a destination due to changes made by Dropbox's OAuth process.

Release Notes for Arq Backup Version 5.17.1

October 6, 2020

Changes

• Added a workaround for Google Drive's new 500,000-item per-folder limit.

Release Notes for Arq Backup Version 5.17.0

June 9, 2020

Changes

• Added 3 new AWS regions -- Bahrain, Milan, and Cape Town.

Release Notes for Arq Backup Version 5.16.7.1

March 14, 2020

Changes

• Ignore invalid quota information given by any OneDrive account.

Release Notes for Arq Backup Version 5.16.6

March 14, 2020

Changes

• Reverted the reduction in Google Drive OAuth scope from 5.16.4 because many people copy data by hand from one Google Drie account to another, and Arq couldn't read the copied-in data.
• Ignore invalid quota information given by OneDrive business accounts.

Release Notes for Arq Backup Version 5.16.4

November 21, 2019

Modified Features

• Reduced the requested Google Drive OAuth scope to only read/write files Arq has created.

Release Notes for Arq Backup Version 5.16.3

October 31, 2019

Fixed

• Fixed an issue where symbolic links weren't being properly backed up or restored.

Release Notes for Arq Backup Version 5.16.2

September 30, 2019

New Features

• Added support for Wasabi's new us-east-2 region.

Fixed Bugs

• Fixed an issue where, when there are too many session logs, Arq deleted newer session logs instead of deleting the oldest ones.
• Fixed an issue where, if Pri.LongPath.DirectoryInfo returns a list of files but getting metadata about one of the files throws a FileNotFoundException, Arq attempts to get the metadata about the remaining files in the directory.

Release Notes for Arq Backup Version 5.16.0

February 19, 2019

New Features

• Added support for Wasabi's new eu-central-1 region.

Release Notes for Arq Backup Version 5.15.1.3

February 6, 2019

Fixed Bugs

• Fixed an issue where Arq would report an error "too many requests" from OneDrive/SharePoint instead of backing off and retrying.
• Fixed an issue where Arq would report "The specified item name already exists" errors from OneDrive/SharePoint.

Release Notes for Arq Backup Version 5.15.1

January 28, 2019

Fixed Bugs

• Fixed an issue where Arq could encounter a 'Resource not found for the segment root:' error when creating a directory in OneDrive/SharePoint.

Release Notes for Arq Backup Version 5.15.0

January 28, 2019

New Features

• Added support for OneDrive for Business and Office 365 accounts. Now you can use any Microsoft account to store your Arq backups in OneDrive.
• Added support for SharePoint as a backup destination.

Release Notes for Arq Backup Version 5.14.2

January 16, 2019

Improvements

• Added support for new AWS regions eu-north-1 (Stockholm) and ap-northeast-3 (Osaka-Local).
• When restoring, if the destination already exists, offer to overwrite it, downloading only files from the backup that are newer than or missing from the directory on disk.

Release Notes for Arq Backup Version 5.13.3

December 4, 2018

Fixed Issues

• If Wasabi returns a 503 error with an unexpected non-XML response body, sleep and retry instead of failing.
• Fixed an issue where objects intended for Glacier are initially created with Standard-IA storage class instead of Standard storage class.
• If not on an allowed network, abort validation.

Release Notes for Arq Backup Version 5.13.2

August 23, 2018

Fixed Issues

• Fixed an issue with SFTP where in some cases if there was a problem connecting to the SFTP server when writing a file, Arq would think it successfully wrote the file and would therefore fail to retry when the SFTP server became available.

Release Notes for Arq for Windows Version 5.13.1

August 17, 2018

New Features

• Added support for B2 application keys.

Release Notes for Arq for Windows Version 5.12.1

July 17, 2018

Fixed Issues

• Fixed an issue where errors with Arq's cache database could cause Arq to repeatedly retry and requery for data from the destination instead of logging the error and aborting the backup.

Release Notes for Arq for Windows Version 5.12.0

June 26, 2018

New Features

• Added support for Wasabi's new us-west-1 region.

Fixed Issues

• Retry if a network error "Unable to write data to the transport connection: An established connection was aborted by the software in your host machine" occurs.
• Fixed an issue that could cause Arq Agent to crash if there was an error creating a file at Wasabi.

Release Notes for Arq for Windows Version 5.11.5

April 17, 2018

Fixed Issues

• Fixed an issue that could cause 'app_config.plist does not exist' errors during initial setup.
• Fixed an issue that caused 'Hostname could not be parsed' error when adding an SFTP destination where the SFTP username had a '@' character in it.
• Fixed an issue that could occasionally cause Arq to lose email settings.
• Fixed an issue that could cause 'Illegal characters: [?] in path' errors when reading in-use files.
• Fixed the 'Enforce Budget Now' menu item.

Release Notes for Arq for Windows Version 5.11.3

April 5, 2018

Changes

• Added a workaround for SFTP servers that unexpectedly close sessions.
• Added a workaround for SFTP servers like zSFTP/ProVide that behave badly when maximum connections are reached, returning authentication error instead of closing the connection with an error about maximum connections.
• When adding a Wasabi destination, if the Wasabi user doesn't have 'ListAllMyBuckets' permission, Arq prompts for a bucket name to use instead of providing a list to choose from.

Release Notes for Arq for Windows Version 5.11.0

January 22, 2018

Changes

• Reworked the validation process. Instead of validation during a backup session, Arq now validates data in the background, using multiple threads for faster performance.
• Added a Change Credentials button in the destination preferences window for B2 so you can easily change the application key.
• Added support for AWS Paris region.
• Added support for Glacier in the AWS Singapore region.
• Retry when B2 unexpectedly closes the connection.
• When creating a B2 bucket, set the lifecycle policy to only keep the last version of a file.
• Configure logging via log configuration files in C:\ProgramData\Arq\config.
• Added a scroll bar to the backup errors window.

Fixed Bugs

• Fixed an issue where Arq would abort instead of retrying when transient errors occurred while deleting a backup set.
• Fixed time-zone issues in calculating which backup records to keep when "thinning" backup records from hourly to daily to weekly.
• Fixed an issue where aggregate size of folders wasn't being displayed in the backup-record view.
• If no email address is associated with the OneDrive account, use 'unknown' instead of showing an error.
• Fixed an issue where Arq would sometimes drop the wrong backup records when thinning backups from hourly to daily to weekly.
• Fixed an issue where reflog entry dates were sometimes displayed incorrectly.

Release Notes for Arq for Windows Version 5.10.1

November 22, 2017

Fixed Bugs

• Fixed an issue which could cause "not valid XML" and "not enough bytes in dat file" errors with SFTP.
• If an incorrect password is entered when browsing another computer's backups, prompt for a different password instead of giving an error message.

Release Notes for Arq for Windows Version 5.10.0

November 21, 2017

Changes

• Fixed an issue which caused auto-update to fail.
• Fixed an issue where Arq could fail to recreate a missing pack index file.
• Changed the way Arq (re)uses SFTP connections to reduce the number of opens/closes.
• Fixed an issue that could cause an error if Arq tries to replace an existing file at local destination.
• Fixed an issue that could cause an error if Arq tries to replace an existing file at an SFTP destination.
• Fixed an issue that could cause a crash (NullReferenceException) when log level is set to Debug and Arq encounters a locked file.
• Fixed an issue that could cause Arq to report an error about a locked file, even when it goes on to upload the locked file using Volume Shadow Service.
• Fixed backup scheduling issues.
• Improved performance when browsing backup records especially when nothing has been cached locally yet.
• Fixed an issue where Arq would sometimes drop the oldest backup record when thinning backups from hourly to daily to weekly.
• Sort the directory listing of directories on network shares.
• If OneDrive returns a "quotaLimitReached" error, report the error and abort the backup.
• When backing up to a network share, write the file to a temporary directory on the network share, not the local disk.
• If no changes were found backing up and the most recent backup record was "in-progress" (perhaps because the previous backup aborted) remove the in-progress backup record.
• If Arq can't connect to an SFTP server more 60 seconds, give up and write "SFTP server is unavailable" to the session log.

Release Notes for Arq for Windows Version 5.9.16

September 29, 2017

Changes

• If B2 storage cap is exceeded, abort the backup.
• Reduced the frequency with which Arq opens and closes its cache database.
• Catch permission-denied errors from SFTP servers when checking existence of a file.
• Fixed an issue that could cause Arq to drop too many backup records when "thin backups from hourly to daily to weekly" is checked in the preferences.
• Fixed an issue that could lead to "object header not equal to ARQO" and "HMACSHA256 does not match" error messages.
• Switched to V2 API for getting Dropbox quota info (all other API calls were already V2) because Dropbox retired the V1 API. This may cause issues for Dropbox for Teams users if the Dropbox API doesn't return team space-available information.
• Fixed an issue that could cause an exception if a Google Drive error (e.g. "User rate limit exceeded") occurs repeatedly when Arq is trying to create a file.

Release Notes for Arq for Windows Version 5.9.8

September 8, 2017

Changes

• Clear cookies before presenting the OAuth2 window so Arq doesn't stay logged into whatever OneDrive account you logged into previously.
• Capture the Dropbox custom "content hash" from file-put and directory-listing commands. During validation, calculate the Dropbox-style hash of the file on disk and compare it to the hash of the data at Dropbox.
• If Arq encounters an SSH not-connected exception when backing up via SFTP, retry the transaction.
• When adding a Google Drive or Dropbox destination, show a warning about not syncing the Arq Backup Data folder back to your computer.
• When backing up a single file with Arq, compare it to the previous backup record and don't rescan if the modification times haven't changed.
• Use V1 Dropbox API to get quota information as a workaround for incorrect quota information returned by the V2 API when team accounts are involved.
• Fixed issues where Arq wouldn't properly retry when an SFTP connection was terminated.
• Fixed an issue that could lead to "object header not equal to ARQO" and "HMACSHA256 does not match" error messages.

Release Notes for Arq for Windows Version 5.9.4

August 23, 2017

Fixed Bugs

• Fixed an issue that could cause Arq to drop the oldest backup record if "thin backups from hourly to daily to weekly" is checked in the preferences.
• Use the correct (custom) port number when updating credentials for an S3-compatible destination.

Release Notes for Arq for Windows Version 5.9.3

August 11, 2017

Workarounds

• Added a workaround for an unexpected (undocumented) response from Amazon Drive when the "next page token" expires while reading a folder listing.

Fixed Bugs

• If an error occurs when creating an S3 bucket, allow the user to continue anyway.
• Fixed an issue where Arq would download much more Dropbox data than necessary when validating backup records.
• Fixed an issue where Arq wouldn't automatically retry on OneDrive 500-599 (server) errors.
• Fixed an issue where browsing an S3-compatible service's backup sets would give a connect error if the service used a non-standard port.

Release Notes for Arq for Windows Version 5.9.0

July 27, 2017

New Features

• Added Backblaze B2 (super-cheap) storage as an option for backup destination.
• Added Wasabi (super-cheap, S3-style storage) as an option for backup destination.
• Added a storage comparison guide for help in choosing a destination for your backups.
• Separated budget enforcement and data validation. Data validation now happens as part of a backup.
• Improved budget enforcement performance.

Fixed Bugs

• Fixed an issue which would prevent Arq to replace an "in-progress" backup record with a completed backup record in the case that no files have changed.
• Fixed an issue which could cause Arq to fail to use VSS to back up open/locked files on drives other than C:.
• Fixed an issue where, if the next validation/budget enforcement time is sooner than the next backup time, Arq could fail to do subsequent backups.
• Disable Continue button on Add-S3-Compatible dialog until a valid URL is entered.
• Centered the "use appdata" dialog over its parent window.
• Fixed an issue which could cause permission errors when clearing Arq's cache.
• Fixed the File->Exit menu item.
• Fixed an issue which was preventing computer shutdown when the Arq app is open.
• Fixed an issue that could cause Arq to keep an incorrect number of backup records when "thinning" is enabled.
• Fixed an issue that could cause adding a network volume to fail if non-domain username is used.
• Fixed an issue that could cause deleting a backup set to fail in the case where there are multiple buckets containing Arq backup sets.
• Fixed an issue that would cause budget amounts to be shown (incorrectly) with local currency symbol instead of dollars.
• Fixed an issue that could cause multiple directories with the same name in Google Drive.
• Fixed an issue that could cause slow performance backing up to a local folder.
• Fixed an issue where, if the folder "node" in the Arq window is already expanded but has no backup records, and the first backup is created, the new backup record appears correctly beneath the folder node.
• Ensure that destinations are ordered the same way everywhere -- in the Arq window, in the preferences window, in all the select-destination dialogs.
• Fixed a crash that could occur when browsing backup session logs.

Release Notes for Arq for Windows Version 5.7.35

June 26, 2017

Changes

• Changed embedded web browser's feature emulation to IE11 to work around issues with OAuth authentication to Amazon Drive and Google Drive.

Release Notes for Arq for Windows Version 5.7.33

June 23, 2017

Changes

• If the source folder is a junction point, traverse it. Otherwise, don't.
• If nothing is configured for backup, log an error about it.

Fixed Bugs

• Updated the SSH library to fix an issue which can cause corruption in files written to an SFTP server.
• Fixed an issue that where Arq would not clean up shadow copies created during backup.
• Added a workaround for SFTP servers requiring keyboard-interactive authentication but giving non-standard password prompts.
• Fixed an issue that could cause Arq to crash if unexpected file names are in the session_logs folder.
• Added a workaround for a C# timer class that could prevent backups from happening on schedule if the computer sleeps in between scheduled backups.

Release Notes for Arq for Windows Version 5.7.30

June 8, 2017

Fixed Bugs

• Fixed a privacy issue where a third party who already has access to your backup data can identify the presence of a file in an encrypted backup, as long as the third party has a copy of the original, unencrypted file.
• Fixed an issue that could cause Arq Agent to crash on an unexpected I/O error, for example if the drive being backed up is disconnected unexpectedly.
• Added a workaround for some instances where people got 'browser is obsolete' type error messages when authenticating with Amazon Drive, Google Drive, Google Cloud Storage, Dropbox, OneDrive.

Release Notes for Arq for Windows Version 5.7.25

May 30, 2017

Fixed Bugs

• Fixed an issue where, Arq could report an EOF error when attempting to rebuild a missing index for a pack file.
• Fixed transfer rate limiting for backups to Dropbox.

Release Notes for Arq for Windows Version 5.7.24

May 29, 2017

Fixed Bugs

• Fixed an issue where, when reading an existing (small) pack file for the purposes of replacing it, Arq failed to reset the stream causing EOF errors.

Release Notes for Arq for Windows Version 5.7.23

May 25, 2017

Fixed Bugs

• Fixed an issue where Arq didn't propogate an error reading an index file, leading to "EOF" errors if Amazon Drive returned an incomplete response.

Release Notes for Arq for Windows Version 5.7.22

May 22, 2017

Fixed Bugs

• Fixed an issue that caused Arq to report an error when a license code is entered, instead of accepting the license code.

Release Notes for Arq for Windows Version 5.7.21

May 22, 2017

Fixed Bugs

• If Amazon Drive returns an incomplete response (not the same size response as the Content-Length header indicates), retry the request.
• Fixed an issue backing up an individual source file.
• Fixed an issue parsing unexpected results in a Google Drive request-access-token response.
• Fixed an issue where the user could enter a UNC share path in the form of \\host\sharename\subdirectory. Only \\host\sharename is allowed in the Network Volumes preferences pane; you can choose a folder within it when adding to backups or restoring.
• Fixed an issue that cause an error when removing a LifecycleConfiuration.
• Fixed an issue in finding weekly backup records when the "thin backups" option is checked.

Release Notes for Arq for Windows Version 5.7.13

April 5, 2017

Fixed Bugs

• Fixed an issue that could cause Arq to upload at a much higher rate than the user's fixed-transfer-rate setting.
• Fixed an issue that would cause Arq to sometimes lose the "upload file lists" preferences when the agent restarts.
• Fixed an issue that could cause Arq to enforce a budget when no budget was configured.

Release Notes for Arq for Windows Version 5.7.8

March 22, 2017

Improvements

• Added 'Remove Unreferenced Objects Now' menu item.
• If Google Drive returns the error 'download quota for this file has been exceeded', wait and retry.

Release Notes for Arq for Windows Version 5.7.1

March 5, 2017

Changes

• Disabled Glacier Expedited retrieval tier restore for now due to incorrect cost estimation.

Release Notes for Arq for Windows Version 5.7.0

February 28, 2017

Improvements

• Changed to Dropbox V2 API.

Release Notes for Arq for Windows Version 5.6.0

February 27, 2017

Improvements

• Updated the SSH/SFTP library Arq Agent uses to SSH.NET 2016.0.0.

Fixed Bugs

• Fixed an issue where Arq would fail to back up a file if another program had locked a portion of the file.
• Fixed an issue which could cause checkboxes in Arq's email preferences window to rapidly toggle back and forth.
• Fixed an issue which could cause Arq to report incorrect backup-set size for OneDrive backups.
• Fixed an issue that could Arq to create a new backup record even if no files have changed.
• Fixed an issue that could cause a "not found" error during Glacier restore even though the object exists.
• Fixed an issue that could "invalid path" errors when backing up to a network volume if the UNC path of that volume was entered in upper case.
• Fixed a display issue that could hide part of the "bytes stored" result for Amazon Drive.
• Double-check that network volume mounting succeeded to work around a Windows issue where success is reported but the volume doesn't exist.

Release Notes for Arq for Windows Version 5.5.0

January 23, 2017

Improvements

• Updated Glacier restore process to allow selection of retrieval tier (Bulk, Standard or Expedited).

Fixed Bugs

• Fixed an issue which caused Arq to delete newer backup session logs when there were too many logs, instead of deleting the oldest backup session logs.
• Fixed an issue where Arq would fail to mark the backup record as not in-progress if there was an error backing up a file which was modified during the initial scan.
• Fixed an issue which caused Arq to incorrectly log in-use files as errors.

Release Notes for Arq for Windows Version 5.4.8

January 12, 2017

Fixed Bugs

• Fixed an issue which caused Arq to create a visible "appdata" folder instead of using the hidden one when adding Google Drive as a destination.

Release Notes for Arq for Windows Version 5.4.7

January 10, 2017

Improvements

• Catch invalid negative "available" numbers coming from Amazon Drive and default to 0.
• Added support for new AWS London region.
• Added an option to use the "appdata" folder when backing up to Google Drive.
• Allow more than 23 hours for hourly schedule.
• Improved file scanning performance.

Fixed Bugs

• Fixed an issue which caused Arq to rebuild its cache every time a file restore was requested.

Release Notes for Arq for Windows Version 5.4.0

December 13, 2016

Improvements

• Updated Arq to reflect December 1 AWS pricing changes.
• Added support for AWS Asia Pacific Mumbai region.
• Added support for AWS Canada region.
• Changed Arq and Arq Agent to run as native 64-bit applications on 64-bit versions of Windows.
• Changed Arq to default to TLS 1.2.

Fixed Bugs

• Fixed an issue which caused "VSS" errors when attempting to back up open/locked files.

Release Notes for Arq for Windows Version 5.3.10

November 25, 2016

Fixed Bugs

• Fixed an issue with the installer so that it always runs with administrator privileges.

Release Notes for Arq for Windows Version 5.3.9

November 12, 2016

Fixed Bugs

• Fixed an issue that could cause the Arq app to crash on launch.

Release Notes for Arq for Windows Version 5.3.7

November 10, 2016

Fixed Bugs

• Fixed an issue that could cause "Value cannot be null" errors when parsing Amazon Drive folder results.
• Fixed an issue where multiple local-folder destinations weren't shown under "RESTORE FILES".
• Added a workaround for when Amazon Drive returns invalid folder-listing results.
• Fixed an issue where UNC paths had unexpected underscore characters added.

Release Notes for Arq for Windows Version 5.3.3

November 1, 2016

Changes

• Removed desktop shortcut creation from installer.

Release Notes for Arq for Windows Version 5.3.2

October 25, 2016

Fixed Bugs

• Fixed an issue that could cause "unexpected path component" errors when backing up files that are being modified.
• Strip illegal Windows filename characters from Mac filenames when restoring from Mac backups.

Release Notes for Arq for Windows Version 5.3.0

October 21, 2016

Improvements

• Added support for Google Cloud Storage's new Coldline option.
• Added support for Google Cloud Storage multi-region and single region locations.

Release Notes for Arq for Windows Version 5.2.0

October 20, 2016

Improvements

• Added support for the new Ohio (us-east-2) AWS region.

Release Notes for Arq for Windows Version 5.1.48

September 24, 2016

Fixed Bugs

• Fixed an issue where the new hostname wasn't being applied when changing SFTP connection parameters.

Release Notes for Arq for Windows Version 5.1.45

September 24, 2016

Fixed Bugs

• Fixed an issue which could cause uploading to stall.

Release Notes for Arq for Windows Version 5.1.44

September 22, 2016

Fixed Bugs

• Optimized Arq's cache database to fix an issue which could cause very long wait times browsing very large data sets.
• Removed "wl.basic" from the list of permissions requested from OneDrive because Arq doesn't need it.
• Fixed an issue which could cause "failed to read n bytes" errors.
• Fixed an issue which caused Arq to upload at up to 8x the chosen fixed transfer rate.
• Fixed an issue which could cause a crash when restoring from legacy Glacier backups created by Arq for Mac.
• Changed Add Network Volume dialog to not require username or password.

Release Notes for Arq for Windows Version 5.1.34

August 22, 2016

Fixed Bugs

• Changed the location of temporary files to fix an issue which could cause "not found" errors during backup.
• Fixed an issue where Adopt Backup Set and Delete Backup Set buttons were invisible for local-folder type backup sets.

Release Notes for Arq for Windows Version 5.1.32

August 7, 2016

Fixed Bugs

• If backing up to a local folder, skip checking if we're on an allowed network.
• Fixed an issue with creating S3 lifecycle policies for non-Glacier-supporting AWS regions.
• Fixed an issue which caused "account not found" errors when logging into multiple Amazon Cloud Drive accounts from different geographical regions.

Release Notes for Arq for Windows Version 5.1.23

July 14, 2016

Fixed Bugs

• Fixed an issue which caused the fixed transfer rate to have no effect.

Release Notes for Arq for Windows Version 5.1.22

July 12, 2016

Fixed Bugs

• Fixed an issue where daily backup would not occur on system wake if last backup was less than 24 hours ago (even if last backup was the previous day).

Release Notes for Arq for Windows Version 5.1.21

July 7, 2016

Fixed Bugs

• Fixed an issue which could cause "invalid original size" errors.

Release Notes for Arq for Windows Version 5.1.20

July 5, 2016

Fixed Bugs

• Check for existence of target directory *after* running preflight script.
• Fixed an issue which could cause "LZ4 inflate" error when restoring from Glacier.

Release Notes for Arq for Windows Version 5.1.18

June 22, 2016

Fixed Bugs

• Fixed an issue of Adopt and Delete buttons not appearing when selecting an SFTP backup set.

Release Notes for Arq for Windows Version 5.1.17

June 13, 2016

Fixed Bugs

• Fixed an issue where re-authorizing Arq access to an Amazon Cloud Drive account could cause Arq to get stuck in a loop.
• Fixed an issue where an unexpected SFTP server response caused Arq to fail when deleting a file.
• Added a workaround for truncated output from Amazon Cloud Drive which caused "Failed to parse folder listing" errors.

Release Notes for Arq for Windows Version 5.1.12

May 24, 2016

Fixed Bugs

• Fixed an issue where the 'include file list' preference wasn't being saved.
• Fixed an issue which caused "HMACSHA256 does not match" errors if you enter the wrong password when browsing another computer's backup set.
• Fixed an issue which caused Arq to fail to list other backup sets if the AWS destination was originally configured with a non-us-east-1 endpoint.
• Fixed an issue which could cause a confusing "upload queue not empty" error message when backup is aborted.
• Fixed an issue which could cause Arq to get "stuck" while backing up.
• Fixed an issue where Amazon Cloud Drive could give an unexpected message when attempting to overwrite a file.
• Fixed an issue which could cause date-parsing errors in some locales.
• Fixed an issue which could cause an exception when "thin backups" is enabled and no changes were found compared the the last backup record.

Release Notes for Arq for Windows Version 5.1.5

May 15, 2016

Fixed Bugs

• Fixed an issue which caused Arq to give an error when backing up very long file paths.
• Fixed an issue which caused update-encryption-password to fail for some backup sets that were originally created with Arq 4.
• Fixed an issue which could cause a crash when restoring a file.
• Check that S3 bucket name begins with a letter or number.

Release Notes for Arq for Windows Version 5.1.1

May 12, 2016

Fixed Bugs

• While backing up, show the directory being scanned.
• If an Amazon Cloud Drive 400 error occurs on upload, try again.
• If an error occurs browsing backup records, show 1 error dialog.

Fixed Bugs

• Fixed an issue where Arq could report inaccurate total from Amazon Cloud Drive folder listing.

Release Notes for Arq for Windows Version 5.0.54

May 9, 2016

Fixed Bugs

• Fixed an issue where the request buffer may not have been completely flushed, causing the error 'You must write ContentLength bytes to the request stream before calling [Begin]GetResponse.'.
• Fixed an issue getting a folder list from some SFTP servers.

Release Notes for Arq for Windows Version 5.0.52

May 6, 2016

Fixed Bugs

• Check for invalid ContentLength when executing HTTPS requests.

Release Notes for Arq for Windows Version 5.0.51

May 6, 2016

Fixed Bugs

• Made data validation optional, via a checkbox in the destination preferences.
• Changed Arq Agent to wait 2 minutes between finishing a backup and starting data validation, to avoid "eventual consistency" issues (delays in getting accurate file lists from Amazon Cloud Drive and other providers).

Release Notes for Arq for Windows Version 5.0.50

May 4, 2016

Fixed Bugs

• Fixed an issue which could cause errors about Content-Length not being sent.
• Fixed an issue where Arq couldn't read backup records created by Arq for OS X.
• Fixed an issue where some changed folders may not have been scanned.

Release Notes for Arq for Windows Version 5.0.49

May 2, 2016

Fixed Bugs

• Log the HTTP response body when an Amazon Cloud Drive 400 error occurs.
• Fixed an issue where, if a backup session aborts with an in-progress backup record, some files may not be backed up.

Release Notes for Arq for Windows Version 5.0.47

April 28, 2016

Fixed Bugs

• Fixed an issue where Arq Agent would sometimes use too much CPU if during the "pause window".
• Added a workaround for SFTP servers that return permission-denied error when a directory does not exist.
• Fixed an issue that could cause Arq Agent to crash when backing up.

Release Notes for Arq for Windows Version 5.0.43

April 23, 2016

Fixed Bugs

• Fixed an issue where Arq Agent wouldn't pause and retry on Google Drive "rate limit exceeded" errors.

Release Notes for Arq for Windows Version 5.0.42

April 23, 2016

Fixed Bugs

• Fixed an issue which caused an error when trying read the list of selected wireless networks.
• Fixed a non-functioning Exit item in the File menu.
• Fixed an issue that caused an exception when browsing backup records.

Release Notes for Arq for Windows Version 5.0.39

April 22, 2016

Fixed Bugs

• Fixed an issue where multiple files with the same name could cause an exception in the agent.
• Fixed an issue where Arq Agent would crash when the user applies a license code.

Release Notes for Arq for Windows Version 5.0.37

April 20, 2016

Fixed Bugs

• Fixed an issue that could cause a crash when viewing backup session logs.
• Fixed an issue which caused "File Not Found" errors when attempting to back up to a local folder.
• Fixed an issue that caused the agent to open too many simultaneous SFTP connections.
• Fixed an issue that caused NullReferenceException in the agent when recalculating next backup time.
• Fixed an issue that caused a crash when editing an S3-compatible destination in the preferences.
• Fixed an issue which could cause a crash in the agent when getting a list of items at Amazon Cloud Drive.
• Allow connecting to a network volume with an empty password.

Release Notes for Arq for Windows Version 5.0.36

April 17, 2016

Fixed Bugs

• Fixed a crash that occurred after selecting "View Backup Session Logs" if there are no logs.
• Fixed an issue that caused backup of files larger than 4GB to fail.
• Fixed an issue that prevented backups if a folder's mount point did not exist.
• Fixed an issue that prevented backups to Google Cloud Storage for computers with some locale settings.

Release Notes for Arq for Windows Version 5.0.35

April 13, 2016

Fixed Bugs

• Fixed an issue where Arq sometimes wouldn't accept an upgrade license code.

Release Notes for Arq for Windows Version 5.0.34

April 12, 2016

Arq 5 for Windows includes lots of new features and improvements!

• Massively faster with multiple threads and LZ4 compression
• Much smaller memory footprint than Arq 4
• Search for files across all backup records
• More control over network usage: prevent backups while tethered to your phone!
• Detailed backup session logging
• Detailed email reports: what's being backed up, how much was uploaded, how long it took
• Back up to a local folder or NAS
• Run scripts before and after backup
• Support for AWS S3 "Infrequent Access" storage class
• Auto-update (no more installing Arq updates)
• CPU throttling
• Back up open/locked files like Outlook PST files
• Back up files from network shares
• Back up to a network share
• Exclude files by name and/or regular expression
• Encryption improvements (see data format spec)
• Lots of smaller improvements

Release Notes for Arq for Windows Version 4.4.0.0

January 7, 2016

New Features

• Added support for the new AWS Seoul region.

Release Notes for Arq for Windows Version 4.3.20.0

January 6, 2016

Fixed Bugs

• Fixed an issue where backing up an entire drive (e.g. C:\ or E:\) would cause the progress bar to not move.
• Fixed a crash that occurred when using Amazon Drive on Windows 10.

Release Notes for Arq for Windows Version 4.3.16.0

September 25, 2015

New Features

• Added the ability to connect to and back up from network drives.
• Added the ability to back up open/locked files using Microsoft Volume Shadow Copy Service.

Release Notes for Arq for Windows Version 4.3.15.0

November 19, 2015

Fixed Bugs

• Fixed an issue where Arq was unnecessarily caching object lists before restoring.
• Fixed an issue where the progress bar wasn't showing movement during backup.

Release Notes for Arq for Windows Version 4.3.14.0

November 12, 2015

Fixed Bugs

• Fixed an issue where some data wasn't being properly decompressed.

Release Notes for Arq for Windows Version 4.3.13.0

October 21, 2015

Fixed Bugs

• Fixed an issue where some data wasn't being properly decompressed during restore from Glacier.

Release Notes for Arq for Windows Version 4.3.12.0

September 25, 2015

Fixed Bugs

• Read OneDrive folder listings 200 items at a time to avoid OneDrive request-timeout problems.
• Fixed an issue where chosen location wasn't used when creating a Google Cloud Storage bucket.
• Save license info to a separate file to work around missing license issues.
• Catch unexpected updated_date values from OneDrive.

Release Notes for Arq for Windows Version 4.3.6.0

August 22, 2015

Fixed Bugs

• Do not migrate Amazon Drive objects to subdirectories.

Release Notes for Arq for Windows Version 4.3.5.0

August 18, 2015

Fixed Bugs

• Fixed an issue which prevented backing up very long file paths.
• Improved OneDrive caching for better backup/restore performance.

Release Notes for Arq for Windows Version 4.3.4.0

August 16, 2015

Fixed Bugs

• Catch exceptions when Google Cloud Storage returns invalid date/time values.
• Catch exceptions when OneDrive returns invalid date/time values.
• Catch exceptions when Dropbox returns invalid date/time values.
• Migrate OneDrive objects to subdirectories because too many objects in 1 directory seems to cause OneDrive timeout issues.
• Migrate Amazon Cloud Drive objects to subdirectories to avoid potential API issues with too many items in 1 directory.
• Added a workaround for Amazon Drive. Amazon Drive sometimes doesn't return a full list of items in a directory (when a 500 error occurs during paging through the listing), causing Arq to fail to load backup records. Arq now compares the actual total item count received to the expected total; if it didn't get all the items, it retries until it does.
• Fixed a caching issue with Google Drive which could cause 'folderId not found for path' errors.

Release Notes for Arq for Windows Version 4.3.0.0

July 25, 2015

New Features

• Made backup-record-thinning optional. Check the checkbox in the Advanced preferences if you want Arq to thin your backup records to hourly for the past 24 hours, daily for the past month, and weekly after that.

Fixed Bugs

• Catch any exception that occurs when populating destinations table view.
• Fixed a PathTooLongException when restoring files.
• Fixed an issue where Arq would only retrieve the first page of items in a directory for both Amazon Cloud Drive and OneDrive, leading to not-found errors for objects that actually exist.
• Fixed issues which prevented restoring when a single file was added as a backup item (rather than folder).
• If duplicate items with the same name in the same directory are found in Google Drive, Arq merges them.
• On first-time setup, Arq won't automatically choose the AWS or Google Cloud region, and won't automatically choose Glacier storage class.

Release Notes for Arq for Windows Version 4.2.9.0

July 13, 2015

Fixed Bugs

• Fixed an issue where Arq would not retain older backup records as expected.
• Increased the HTTPS transaction timeout to avoid errors like "System.Net.WebException: The request was aborted: The request was canceled."
• Fixed an issue where parsing an Amazon Cloud Drive error could cause an exception that causes backup to stop.

Release Notes for Arq for Windows Version 4.2.4.0

July 8, 2015

Fixed Bugs

• Fixed an issue where Arq Agent would crash if the OneDrive account name was missing when adding a OneDrive account.
• Fixed an issue that could potentially cause backups to stop and report "The request was canceled" errors.
• Wait and then retry when Amazon Cloud Drive gives "Rate exceeded" error.

Release Notes for Arq for Windows Version 4.2.0.0

July 2, 2015

New Features

• Added support for backing up to your Amazon Cloud Drive account! It's $59.99 per year for unlimited secure storage of your backup data.

Fixed Bugs

• Fixed an issue where Arq wasn't storing the Google Cloud Storage refresh token correctly.
• Fixed an issue where unexpected modified date values in Google Drive responses would cause the agent to crash.
• Retry on all rate-limit-exceeded responses from Google Drive.
• Added a workaround because Google Drive wasn't actually deleting an item despite responding that it did delete the item.
• Changed Dropbox data structure to split objects into subdirectories because Dropbox doesn't allow more than 25,000 files per directory.
• Fixed an issue where Arq Agent would not pause backing up when a pause window was configured.
• Increased the timeout for HTTPS requests.
• Fixed an issue where HTTPS requests were resulting in 'request was canceled' errors.

Release Notes for Arq for Windows Version 4.1.3.0

June 14, 2015

Fixed Bugs

• Added debug logging for HTTP timeouts.
• Fixed a crash that occurred when the user selected a Google Cloud Storage project with no existing buckets in it.
• Fixed a crash that occurred if the folder to be backed up didn't exist.

Release Notes for Arq for Windows Version 4.1.0.0

May 26, 2015

New Features

• Cache Dropbox folder-listing results to improve performance.
• Cache OneDrive folder-listing results to improve performance.
• Changed the default backup settings for first-time use to back up the user's home drive instead of home folder.

Fixed Bugs

• If Arq Agent isn't running, Arq app shows an error and then quits instead of behaving erratically.
• If Dropbox access was revoked, offer to let the user re-authorize.
• Fixed an issue where the chosen AWS region wasn't being used when creating a bucket.
• Fixed an issue where Arq Agent was requesting too much permission when reading files.
• Fixed an issue with potential multiple Google Drive items with the same name (which is allowed by the Google Drive API for some reason).
• Skip reparse points where access is denied.
• Switched from .NET 3.5 to .NET 4 to make installation simpler on Windows 8.
• Moved About menu item to Help menu.
• Fixed minor UI label issues.

Release Notes for Arq for Windows Version 4.0.35.0

May 19, 2015

Fixed Bugs

• Fixed a crash that occurred when changing schedule settings.

Release Notes for Arq for Windows Beta Version 4.0.34.0

May 5, 2015

Initial release.