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CCC 7 Release Notes

  • Updated

CCC 7.1.1

April 17, 2025

  • Removed a condition that was causing CCC to re-enable Spotlight on the destination in some cases.
  • Fixed a localization issue that was causing notifications to be presented only in English.
  • Fixed an issue that could lead to the wrong notes being presented for a task if you were to select another task before dismissing the Notes popover.
  • Addressed an issue that could cause the Backup Volume Setup Assistant to be unresponsive.
  • Corrected the handling of resource forks that are larger than 4GB.

CCC 7.1

March 31, 2025

  • For Sonoma and Sequoia users, CCC now offers an option to set a custom icon on locally-attached source and destination volumes. Select an image of your own, or get creative with Apple's new Image Playground. Click on CCC's Source or Destination selector to find the new "Set custom icon" options. Apple's Image Playground requires an Apple Silicon Mac that supports Apple Intelligence and macOS Sequoia 15.2 or later.
  • This version of CCC embraces new macOS functionality that allows us to avoid installing the CCC helper tool into Macintosh HD > Library > PrivilegedHelperTools. The helper tool will be "registered" with macOS, but will remain inside of the CCC application bundle. This new practice resolves a long list of complications that have arisen over the years with the legacy LaunchDaemon configuration as Apple has improved macOS platform security.
  • Full Disk Access is no longer required separately for CCC's helper tool. CCC's coaching around this procedure has been updated to reflect the new requirement. No changes are required for current CCC installations.
  • CCC offers new UI in Settings > Advanced to specify the authorization requirements for a variety of CCC activities. For example, you may wish to require an admin user for CCC task changes, but allow non-admin users to start/stop tasks. Now you can configure that with ease in Advanced Settings.
  • The Snapshot Comparison Browser search field now supports wildcard and regular expression searches.
  • CCC Dashboard's "Suspend all tasks" dialog now offers a date picker option for those cases where the pre-set intervals are not flexible enough.
  • In the Tasks tab of the CCC Dashboard application, the "Defer…" option is now available for any scheduled task even when that task is not running. This allows the user to proactively defer a task before its scheduled run time rather than having to wait until the task is actually running.
  • If a task is configured to restart or shut down the system "after a 60 second delay", that delay will no longer be applied when the screen is locked. In those cases macOS will not present the restart/shutdown dialog at all, so CCC proceeds directly to the request instead. This does not affect the fate of unsaved documents. If an application requires attention before it can quit, that application will cancel the restart/shutdown request even if the screen is locked.
  • Fixed a logic issue in the Dashboard that was causing the "Shutdown if previously off" feature to not work.
  • Spotlight will now be disabled on the destination by default when selecting the option to use a destination volume exclusively for the CCC task in the Backup Volume Setup Assistant. Users can also select a volume in the sidebar and disable (or re-enable) Spotlight via a switch. This change will hopefully address the interference that Spotlight and its mediaanalysisd buddy are causing with regard to unmounting CCC destination volumes.
  • Added an option to the ccc command-line utility to perform snapshot thinning and pruning on a specified volume according to its current Snapshot Retention Policy.
  • Improved the recapturing of space savings on the destination when files have been duplicated on the source (e.g. in the Finder).
  • The macOS Installer Media Assistant now requests 20GB when "borrowing" space for installer media. This accommodates the larger requirement for macOS Sequoia 15.3.1.
  • The "Legacy Bootable Copy Assistant" functionality is now merged into the Backup Volume Setup Assistant.
  • When a task is configured to make a legacy bootable copy of the source, the task is no longer automatically converted to a "Standard Backup" configuration after the cloning procedure has completed. When you subsequently run the task again, CCC will erase the destination and repeat the legacy bootable copy procedure.
  • The "Present an alert dialog for reminders" Dashboard setting is now only applied to reminders, not to "Prompt before proceeding" task prompts.
  • The "MobileSoftwareUpdate" folder is now hidden by default on the destination. This folder is technically not hidden at the root of the startup disk, but it's not exposed via a firmlink, and it exists exclusively on the Data volume, so it effectively does not appear in the Finder.

CCC 7.0.4

November 19, 2024

  • The Snapshot Navigator now indexes bundle contents too, so we can search for files within, for example, a Photos library bundle file.
  • Fixed a logic issue introduced in the 7.0.3 update that leads to an error when running "legacy bootable copy" tasks on Intel Macs running Sequoia.
  • Fixed an issue introduced in the 7.0.3 update that would cause postflight shut down and restart requests to fail if the task was started manually.
  • Added yet another workaround for Apple's restriction on access to the current WiFi network name in macOS Sequoia. These restrictions are affecting our ability to limit task execution to when the Mac is connected to a specific WiFi network. Thanks to the assembly of WiFi network name+location databases (e.g. collected by companies that provide street-view imagery), WiFi network names can be used for location fingerprinting. As such, Apple deems this to be "private" data. Access to this information is only granted to an application that specifically requests access to location information. That's way more information than we want or need for this particular feature within CCC. Making the matter yet worse, that location service isn't even available to background "daemon" applications, like CCC's helper tool. While this update includes a workaround that will temporarily allow us to continue pulling the current WiFi SSID from the system, we anticipate that Apple will eventually "fix" these gaps as well, and the feature will have to be disabled.
  • Fixed an odd edge-case condition where CCC was failing a task in the readiness phase because a source NTFS volume lacked support for a common system call.

CCC 7.0.3

September 24, 2024

  • Fixed an issue in which CCC's helper was occasionally not completely exiting on startup in cases where there were no scheduled tasks. This was leading to cases where the task history database would be closed, thus disallowing new entries to be recorded.
  • Improved the experience of editing a password in the email server settings panel.
  • Addressed an edge case scenario where file ownership/permissions were preserved despite using the "Don't preserve permissions" advanced setting in cases where files were cloned via the APFS clonefile() method (i.e. in cases where the source and destination are folders on the same APFS volume).
  • CCC will apply a more strict 5GB minimum free space requirement when the destination is the startup disk (or a volume in the same APFS container as the startup disk).
  • Adjusted how ASR is invoked when creating a legacy bootable copy of macOS Sequoia on Apple Silicon Macs. This corrects some cases where the destination would fail to boot and the macOS Boot Recovery Assistant would indicate that macOS would need to be reinstalled. This does not resolve all of those issues, though. We have still found ASR to be a little bit inconsistent in its ability to produce bootable devices on the Apple Silicon platform, despite creating perfect byte-for-byte copies.
  • Implemented a workaround for some oddly-specific folder corruption on Lucidfs that occasionally prevents CCC from creating the write readiness cookie file, despite having no trouble creating other files in the same folder.
  • Task groups no longer get a "success" icon if they run (e.g. on a schedule) but have no tasks to run (e.g. because all tasks within it are disabled, or because the group has no tasks at all).
  • Fixed a false-positive postflight re-verification error that was affecting filesystem-compressed files on macOS Sequoia.
  • Resolved a scenario where files that had been duplicated via the APFS clonefile() procedure were getting re-cloned on the destination during each run because macOS adds a GateKeeper extended attribute to files on the destination.

CCC 7.0.2

July 30, 2024 [macOS Sequoia qualification]

This build of CCC is qualified to run on macOS Sequoia.

  • Addressed a scrolling performance issue in the "Verify files copied by this task" window that could occur when selecting multiple files.
  • Corrected the appearance of the Notes text in Dark Mode.
  • The Task Filter, Advanced Settings, and Notes icons at the bottom of the CCC window now use a badge to indicate that customizations are applied rather than relying on color alone.
  • UUID resetting is now disabled for ExFAT volumes because the exfat.util resets the UUID to all zeroes (bug filed with Apple: FB13813658).
  • When a postflight power management setting is selected that involves presenting the system's 60 second countdown dialog, CCC now wakes the screen before making the request so that this dialog is presented more consistently.
  • Fix a "missing character" font issue for a message in the Task Plan for tasks that are configured to run "When files are modified on the source".
  • Fixed an issue where the "Delete snapshots that are older than {}" and "Limit snapshot disk usage to {}" values were getting swapped in the Snapshot Retention Policy table.
  • "At rest" encrypted volumes (i.e. the internal storage in an Apple Silicon Mac, or an Intel Mac with a T2 chip) are no longer presented as "Encrypted" in the Disk Center unless FileVault is explicitly enabled with a password.
  • When you select a volume in CCC's sidebar and enable encryption on that volume, CCC no longer saves the user-specified password in the System keychain. The prompt for password retention is deliberately limited to cases where an encrypted volume is selected as a source or destination to a CCC task.

CCC 7.0.1

May 22, 2024

  • Improved the procedure of granting full disk access to CCC's helper tool.
  • Network location-based limits can also be applied to task groups.
  • Resolved an issue with creating hardlinks in cases where the destination was low on free space.
  • The Snapshot Comparison browser now shows older versions of application bundles.
  • Navigation activity to and from task groups is now included in the history that is tracked by the Back/Next buttons in the toolbar.

CCC 7.0

May 8, 2024

  • A new Backup Volume Setup Assistant guides users through formatting destination volumes, and asserts that the destination is dedicated to the backup task to avoid conflicts with other backups and other purposes of disk usage. The new setup assistant should go a really long way towards getting backup tasks set up correctly the first time, and without a trip to the documentation.
  • Added search functionality to the Snapshot Comparison Window.
  • Added a snapshot disk usage limit to custom snapshot retention policies (i.e. so you can say, "I want to retain backup history, but I only want the 'history' part of my backup to consume 500GB of space").
  • Added support for flagging specific snapshots to not be deleted by CCC snapshot thinning and pruning, "protected snapshots".
  • Added support for manually creating snapshots on a volume.
  • Scheduled tasks can now be limited to running only when the Mac is on ethernet, on a specific WiFi network, or set to a specific location.
  • CCC's file copier can now detect renamed folders on APFS source volumes, and will rename the folder on the destination rather than recopying all of its content.
  • You can now store notes alongside each task (e.g. to indicate the purpose of a task, or some other piece of helpful context).
  • When snapshot support is enabled on the source, CCC will now create snapshots on the source at the scheduled task run time, even if the destination is unavailable. When you travel without a backup disk, this allows you to retain older versions of files on the source while you're traveling.
  • You can now enable/disable encryption on APFS volumes via a simple switch. Select a volume in the sidebar to find this setting.
  • We added support to the CCC command-line utility for creating, deleting, listing and mounting snapshots. Run the ccc utility without arguments to see the new options.
  • The CCC Dashboard offers more granular control over which CCC Activity events are shared with Notification Center and the level of attention that the notifications will request.

CCC 6.1.7

September 5, 2023 [macOS Sonoma qualification]

CCC 6.1.3

September 19, 2022 [macOS Ventura qualification]

CCC 6.0.4

October 20, 2021 [macOS Monterey qualification]

CCC 6.0

May 18, 2021

Carbon Copy Cloner 5.1.22

October 16, 2020 [macOS Big Sur qualification]

Carbon Copy Cloner 5.1.10

August 20, 2019 [macOS Catalina qualification]

Carbon Copy Cloner 5.1.5

September 17, 2018 [macOS Mojave qualification]

Carbon Copy Cloner 5.1

April 24, 2018

Carbon Copy Cloner 5.0

August 24, 2017 [macOS High Sierra qualification]

Carbon Copy Cloner 4.1.10

September 16, 2016 [macOS Sierra qualification]

Carbon Copy Cloner 4.1.4

September 1, 2015 [OS X El Capitan qualification]

Carbon Copy Cloner 4.0

October 1, 2014 [Mac OS X Yosemite qualification]

Carbon Copy Cloner 3.5.3

October 22, 2013

Carbon Copy Cloner 3.5

July 20, 2012

Carbon Copy Cloner 3.4

July 20, 2011

Carbon Copy Cloner 3.3

September 21, 2009

Carbon Copy Cloner 3.2

March 18, 2009

Carbon Copy Cloner 3.1

March 24, 2008

Carbon Copy Cloner 3.0

September 18, 2007

Carbon Copy Cloner 2.3

October 23, 2003

Carbon Copy Cloner 2.0

November 19, 2002

Carbon Copy Cloner 1.0

January 18, 2002