You can see the latest product updates for all of Google Cloud on the Google Cloud page, browse and filter all release notes in the Google Cloud console, or programmatically access release notes in BigQuery.
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May 21, 2025
Preview: Added support for discovery of Azure virtual machine (VM) instances and uploading the collected information to Migration Center.
For more information, see Discover virtual machine instances on Azure.
April 24, 2025
Generally available: You can now create asset groups in bulk or update group assignments across many assets simultaneously.
For more information, see Add or update asset group assignments in bulk.
March 24, 2025
The discovery client 6.3.6 is available with new features and bug fixes.
Preview: Added support for discovery of Amazon Relational Database Service (Amazon RDS) instances and uploading the collected information to Migration Center.
For more information, see Discover EC2 instances and databases on AWS.
Added upload of disk read and write input/output operations per second (IOPS) to Migration Center. This helps ensure accurate pricing and sizing reports.
Added collection and upload of AWS tags to Migration Center. This enables better visibility and easier grouping of your AWS infrastructure.
Added the --extended flag to the mcdc discover ls command to include location and collection parameters columns.
Fixed an issue that prevented users from sorting Windows Servers by scan status.
Fixed an issue that caused VMware vCenter collection to take significantly more time to initiate a subsequent collection after a details or credential updates.
Fixed an issue where the IP range scan remained in the In Progress state indefinitely after restarting the discovery client service during a scan.
Fixed an issue that caused incorrect primary IP addresses of Amazon EC2 instances to be uploaded to Migration Center. This improves the accuracy of network dependencies reports.
Fixed an issue that caused the Win32_Service Windows Management Instrumentation (WMI) query to fail, resulting in Windows guest collection timeouts. This improves the Windows guest collection success rate and reduces execution time.
Fixed an issue where disk space reporting excluded virtual disk partitions for some filesystems (specifically fuse) on Linux machines. This improves the accuracy of storage capacity and usage data.
Fixed an issue that caused incorrect capacity and storage reporting for Windows RAID partitions.
Fixed an issue where system memory swap space was sometimes incorrectly reported as disk storage.
Fixed an issue that incorrectly calculated storage sizes for ZFS file systems.
Fixed an issue in Linux guest collection that omitted filesystem overhead and reservations from total partition size calculations.
Fixed an issue that required an IP address when using the test credentials feature with VMware tools.
Fixed an issue on Linux where partition data couldn't be retrieved when mount points contained spaces.
Added an indicative message to alert users of unsupported browsers.
January 29, 2025
The discovery client 6.3.5 is available with new features and bug fixes.
Preview: Added support for discovery of AWS EC2 instances and uploading the collected information to Migration Center.
For more information, see Discover VMs on AWS.
You can now unregister the discovery client from Migration Center, so that you can register it in a different project without reinstalling.
You can now manually renew the service account key used for authentication with Migration Center.
View information about the connected Google Cloud project on the settings page.
Fixed an issue that caused expired discovery clients to be incorrectly presented as active on the settings page.
Fixed an issue where the Migration Center discovery client CLI discover ls command only displayed IPv6 addresses. It now displays only IPv4 addresses.
Fixed an issue preventing RedHat operating system (OS) name and version collection.
Fixed an issue that caused the architecture fields not to be collected from ARM VMs.
Fixed an issue that caused disk input/output operations per second (IOPS) on Linux to be reported incorrectly to Migration Center.
Fixed the migrate to Google Distributed Cloud (GDC) assessment to issue a warning for VMs with disks larger than 5 TiB, instead of the previous 108 TiB limit, to account for object storage limitations.
Fixed an issue where the Migration Center discovery client CLI only reported a single memory usage sample, potentially causing incorrect rightsizing suggestions.
Fixed an issue that incorrectly reported procfs and sysfs mounts to Migration Center.
January 09, 2025
The Migration Center Use Case Navigator now includes MongoDB workload identification and guidance. This enhancement allows users to gain valuable insights into the potential transformation journeys for their MongoDB workloads, and to generate comprehensive reports on their MongoDB workload footprint.
November 11, 2024
The discovery client 6.3.4 is available with new features and bug fixes.
The discovery client disk usage collection in Linux and Windows VMs has been enhanced for improved accuracy in disk reporting. The system now supports disk partition type discovery. For Linux VMs, discovery client reports the total disk capacity without partitioning it; for Windows VMs, the partitioned structure is reported.
ESX CPU hyperthreading detection is now supported in the collection of inventory level data from vCenter.
Reduced potential performance impact of the guest collection script on target Linux VMs by setting scripts to execute with a higher nice level.
Reduced potential performance impact of the guest collection script on target Windows VMs by optimizing the collection script.
Fixed an issue that caused Linux guest collection to report incorrect disk space in some cases by excluding network mounts and temporary file systems, and incorrectly calculating logical volumes.
Fixed an issue that caused UDP connections on Windows to not be uploaded to Migration Center.
Fixed an issue that caused VMs with a very large number of running processes, services, installed applications, or open files handlers, to be reported incorrectly to Migration Center.
October 31, 2024
Generally available: You can now authorize Google Cloud engineers to help with your migration by accepting the terms and conditions in Migration Center.
For more information, see Get started with Migration Center.
Generally available: Added support for Cloud SQL Enterprise Plus for SQL Server.
Generally available: Migration Center now detects and surfaces VM hyperthreading enabled or disabled state based on information uploaded on an RVTools file.
Generally available: Migration Center now surfaces VM hyperthreading enabled or disabled state based on the information collected by the Migration Center discovery client.
September 30, 2024
StratoZone was shut down on September 30, 2024, and is no longer available.
Generally available: Migration Center lets you export the inventory and performance data in CSV and Google Sheets format.
For more information, see Export inventory and performance data.
Generally available: Migration Center lets you view the relationship between a server and a hosted database directly in the Console.
Generally available: Migration Center is now available in the following additional regions:
- europe-west4
- us-east4
- us-east5
- asia-southeast1
For more information, see Migration Center locations.
September 16, 2024
The discovery client 6.3.3 is available with new features and bug fixes.
Added a notification that appears when a new version of the discovery client is available.
Added technical fit assessment for BitLocker encryption as part of "Shift to GCE" and "Shift to GDC" assessment. Added rules IDs: C1W-STO-1 and D1W-STO-1.
For more information, see Offline assessment rules.
MSI installer privileges changes: Users are no longer required to run the MSI installer as administrators. Now, standard users with the ability to install software can also run the installer.
Fixed an issue that caused Linux guest collections to report the wrong number of CPU cores in some cases.
Reduced the resource consumption of the Windows collection script on the target VMs.
Fixed an issue that caused VMs using Windows NLB of the same cluster to be represented as a single VM in Migration Center.
Fixed an issue that caused the discovery client to wrongly classify Java processes as JBoss applications.
August 11, 2024
The discovery client 6.3.2 is available with new features and bug fixes.
Added support for Linux kernel driver information collection required for enhanced technical assessment.
Added technical fit assessment for VirtIO Drivers as part of "Shift to GCE" and "Shift to GDC" assessment rules ID: C1L-APP-2 and D1L-APP-3.
You can now add new guest OS credentials from the vCenter discovery page.
You can now reset guest OS credentials in the vCenter discovery page.
The discovery client now validates the existence of guest OS credentials before the creation of an IP range.
Added an error tooltip to the upload status in the Scans page.
Fixed an issue that sometimes caused Windows guest collections to report the wrong number of CPU cores.
Improved free disk calculation from vCenter inventory collection.
Fixed an issue that caused a temporary directory created during guest-level collection using VMware Guest Tools to not get cleaned up if the collection times out.
Fixed an issue that caused the installation to fail if the default PowerShell execution policy is too restrictive.
The discovery client now preserves the users in the MCDCUsers group during an upgrade.
July 31, 2024
Generally available: Migration Center provides recommendations for ve2 nodes on Google Cloud VMware Engine.
Generally available: Migration Center lets you calculate license costs reductions by disabling simultaneous multithreading for virtual machines running Windows Server and Microsoft SQL Server.
For more information, see Migration preferences for servers.
July 30, 2024
StratoZone is scheduled for end of sale on July 30, 2024, and will reach end of life (complete shutdown) on October 1, 2024.
The Migration Center discovery client v5 is scheduled for end of sale on July 30, 2024, and will reach end of life (complete shutdown) on June 30, 2025.
The Rapid Migration Assessment API is scheduled for end of sale on July 30, 2024, and will reach end of life (complete shutdown) on June 30, 2025.
July 24, 2024
The discovery client 6.3.1 is available with new features and bug fixes.
Added support for automated upgrades from previous versions. Upgrades are available for discovery client version 6.3.0 and later.
Added information on machines CPU count per virtual machine in the discovery client detailed offline reports in HTML format.
Fixed an issue that caused guest collection failures from source servers running Windows with .NET Framework lower than 4.5.
Fixed an issue that caused false positive indications of VMware guest connection test.
Fixed an issue that prevented the last collection timestamp from being shown on the Servers page of the discovery client.
Fixed an issue that caused some dropdown fields in the Servers page to get unexpectedly pre-populated by previously selected values.
Fixed an issue that caused Windows collection to sometimes consume high CPU and memory when IIS is installed on the machine.
Improved CPU utilization collection accuracy.
June 30, 2024
Generally available: Migration Center databases discovery and assessment for Microsoft SQL Server, MySQL, and PostgreSQL databases is now generally available.
For more information, see Discover and import databases.
Generally available: Migration Center lets you generate a report for Microsoft licenses (Windows Server and MS SQL Server).
Preview: Migration Center lets you generate a network dependencies report from the data you collect from your infrastructure.
Generally available: Migration Center automatically maps the relationship between a server and a hosted database when both are scanned.
June 24, 2024
Generally available: A new version of Migration Center discovery client, 6.3.0, is generally available. The following features were added in this release:
- Offline reports providing detailed technical fit assessment for migration and modernization of VMs. You can generate reports directly from the local discovery client UI in HTML, CSV, JSON, and Microsoft Excel format.
- Data collection of network statistics and open ports required for identifying VMs dependencies using network information.
- Custom scheduling of data collection from servers to enable opt-out periods.
- Technical fit assessment for migrating VMs to Google Distributed Cloud. The assessment is available as part of the discovery client offline reports.
Added support for local report generation that provides detailed technical fit assessment for migration and modernization. The reports are available in HTML, Microsoft XLS, CSV, and JSON format. You can generate fit assessment reports in offline mode to support assessment in air-gapped environments.
Custom scheduling of periodic data collection lets you define opt-out schedules from periodic collection per server. The feature helps to avoid any potential performance degradation in servers peak usage hours from additional load of data collection.
The discovery client collects network statistics such as open ports and traffic usage per connection to provide the information required to analyze network dependencies in the Migration Center.
User control on analytics and Cloud Logging during installation lets you opt out from sending data to Google. Users can always opt in or opt out later through the discovery client settings.
View the discovery client logs from the Migration Center Console for easy troubleshooting of any communication issues between remote discovery client applications and Migration Center.
Fixed an issue that may cause instability when scanning over 2000 servers.
June 14, 2024
Discovery client 5.3.5.11: Fixed an issue that may cause large memory usage during collection.
June 04, 2024
Generally available: Migration Center lets you download the detailed pricing report as CSV files that include both servers and databases assets.
For more information, see Generate TCO reports.
Preview: Detailed description of CloudSQL shape recommendation calculation is available in the detailed pricing report in CSV format.
May 20, 2024
Preview: A new version of Migration Center discovery client, 6.2.0, is available in Preview. The following features are available:
- New and simplified installation flow using self registration with Migration Center.
- Virtual machine and physical server discovery by scanning ranges of IPs. You can import IP addresses and IP ranges from a CSV file.
- Automated collection of guest-level data required for assessment using SSH and WMI.
- Collection of servers inventory data using direct, secure integration with the VMware VCenter API.
- Simplified experience for managing the credentials required for data collection.
- Periodic collection of performance data from servers required for right-sizing calculation in Migration Center.
For more information, see Migration Center discovery client overview.
The Migration Center discovery client CLI (mcdc CLI) supports the offline assessment of migrating VMs running on VMWare vSphere to VMs running on Google Distributed Cloud (GDC) air-gapped.
The mcdc CLI now assesses the migration fit of VMware VMs to Google Distributed Cloud air-gapped with a journey called "Shift | Google Distributed Cloud". This journey is available in all report formats by default. To generate a report focused on applicable journeys to GDC including existing containerization journeys, run the following command using the mcdc CLI for Linux or Windows:
./mcdc report --format FORMAT --target-platform gdc --file REPORT_NAME
For more information, see Offline assessment rules.
The following are open known issues with the Migration Center discovery client 6.2.0:
- The maximum number of scanned servers is limited to a total of 2,000 servers. Exceeding this limit may cause instability.
- Opting out from analytics and Cloud Logging can only be done from the Settings page of the discovery client application.
- In some cases, the discovery client service might not run after boot, and users would get a "connection refused" error when opening the discovery client application. A workaround is to configure the discovery client service to have a delayed start.
April 19, 2024
Preview: Migration Center displays additional asset-level insights that indicate the installed software detected on scanned virtual machines. Migration Center supports detection of specific third-party software frameworks.
To learn about the software versions reported, see Detected software workloads.
March 31, 2024
When you create a cost estimation for a Google Cloud VMware Engine environment, and you choose General purpose as the workload type, Migration Center now recommends FTT2/R6 as the default vSAN policy.
March 12, 2024
Preview: Migration Center introduces databases discovery and assessment for Microsoft SQL Server, MySQL, and PostgreSQL databases, and lets you assess migration journeys to Cloud SQL, providing technical fit assessment for Cloud SQL target. Groups support servers and databases. Expanded preferences for databases allow you to include databases in the TCO report.
For more information, see Discover and import databases.
February 08, 2024
Preview: You can use VPC Service Controls to secure your Migration Center resources with a service perimeter and control the movement of data across the perimeter boundary.
For more information, see Secure your data with a service perimeter.
Preview: Migration Center provides additional explainability details for the recommendations in the detailed pricing report. You can see details for Google Cloud VMware Engine and Compute Engine sole-tenant targets, and learn about details such as rightsizing and resource allocation performed based on the user preferences.
Generally available: Migration Center provides recommendations for storage-only nodes on Google Cloud VMware Engine.
January 16, 2024
Discovery client 5.3.5.10: Updated .NET runtime to version 6.0.25.
Discovery client 5.3.5.10: General fixes to the application.
January 08, 2024
Generally available: Migration Center lets you estimate the costs of running your Exadata platform as a fully managed service in BigQuery.
For more information, see Cost estimation.
December 07, 2023
Generally available: Migration Center lets you estimate the costs of running your VMware platform as a fully managed service in Google Cloud.
For more information, see Cost estimation.
November 30, 2023
Migration Center lets you create and export a performance data report for your assets. This data is useful to better understand why certain recommendations, such as the rightsizing recommendations, were made.
For more information, see Export inventory and performance data.
November 15, 2023
Migration Center lets you mark assets as out of scope. Out of scope assets are hidden from the groups and never appear in the total cost of ownership (TCO) reports.
For more information, see Out of scope assets.
October 31, 2023
A new version of the Migration Center discovery client CLI is available: version 2.1.0.
Preview: you can now run the mcdc CLI 2.1.0 on Windows. The mcdc CLI for Windows maintains the existing functionalities of the mcdc CLI for Linux, including inventory discovery, guest discovery, and IP range scan. The mcdc CLI for Windows also supports guest collection from Windows target machines using WMI.
With the mcdc CLI 2.1.0, you can now export a debug bundle with the following command:
mcdc export debug
To help troubleshoot your issues, you can share this bundle with Google Cloud Support.
The OSType column was removed from the output of the mcdc discover ipscan command.
The OSType column was removed from the input to the mcdc discover ips command.
October 13, 2023
Discovery client 5.3.5.9: Updated the PostgreSQL and MySQL collection scripts.
October 02, 2023
The on-premises cost calculator in the Migration Center cost estimation functionality has been updated to include some UI improvements and bug fixes.
September 21, 2023
Discovery client 5.3.5.8: Added ability to use local Service Account Key during authorization.
Discovery client 5.3.5.8: Added ability to scan MongoDB databases.
Discovery client 5.3.5.8: Added filtering of project names during authorization with Migration Center.
Discovery client 5.3.5.8: Updated mFit script to 1.15.2.
Discovery client 5.3.5.8: Removed database scan banner.
Discovery client 5.3.5.8: Improved collection of process details for Linux collection.
September 12, 2023
Generally available: Migration Center lets you specify custom rightsizing values for your assessment preferences. In addition to the existing sizing optimization strategies—moderate, aggressive, and no rightsizing—the custom rightsizing strategy lets you set specific values for your assessment calculations.
September 11, 2023
The network usage sizing appears now in the Network section of the Migration preferences page. The Egress traffic estimate knob lets you tune a percentage value of the measured VM egress traffic to be used to estimate billed network traffic per VM. For previous assessments that used the preset method, Migration Center back-filled the egress traffic estimate by using the following values for each sizing optimization strategy:
- No preference: 10%
- No rightsizing: 10%
- Moderate: 10%
- Aggressive: 5%
Previous reports with logical and physical core count per VM might contain inaccuracies. This release contains a fix to information presented on logical and physical core counts per VM. If you compare reports that were exported prior to this change, you might see a different count of logical and physical cores.
August 15, 2023
Migration Center discovery client CLI is now generally available in version 2.0.0. The mcdc CLI maintains the existing functionalities of the fit assessment tool (mFit), and introduces integration with Migration Center.
Preview: With the mcdc CLI 2.0.0, you can export the discovered assets to Migration Center. This lets you generate insights and TCO reports for your inventory.
Export assets to Migration Center with the following command:
mcdc export mc --project MY_PROJECT
For more information, see Export data to Migration Center.
Preview: With the mcdc CLI 2.0.0, you can scan ranges of IP addresses to detect assets in your infrastructure.
mcdc discover ipscan --ranges <RANGE_1>,<RANGE_2>
For more information, see Run an IP range scan.
Preview: With the mcdc CLI 2.0.0, you can collect VM performance data via the vCenter API.
The on-premises cost calculator in Migration Center cost estimation functionality now lets you apply committed use discounts (CUDs), Enterprise Agreement (EA), and Cloud Commitment Agreement (CCA) discounts. The enhanced Workloads and licensing tab also lets you choose licensing models for your Windows and Linux workloads.
June 26, 2023
Migration Center is now generally available.
Migration Center lets you create total cost of ownership (TCO) reports with Google Cloud VMware Engine and sole-tenant nodes on Compute Engine as additional target asset environments.
Migration Center lets you export your assets to a Google Sheets file in your Google Drive.
May 31, 2023
Discovery client 5.3.5.7: Discovery Client can collect usage and other anonymized data that helps Google improve the product.
Discovery client 5.3.5.7: updated .NET Framework to .NET Core 6.0.
Discovery client 5.3.5.7: updated how Fit Assessment scripts and data are transferred (using Windows registry) between target Windows assets.
Discovery client 5.3.5.7: updated Windows NCrypt algorithm to AES.
Discovery client 5.3.5.7: fixed issues with proxy settings in client.
May 15, 2023
The data warehousing cost calculator is now generally available in the Migration Center cost estimation functionality. It lets you generate a rapid cost estimate for running your data analytics and warehousing setup from other cloud platforms on BigQuery serverless data warehouse on Google Cloud.
For more information, see Cost estimation.
April 07, 2023
Discovery client 5.3.5.5: Discovery client now sends technical logs and error messages to Cloud Logging.
Discovery client 5.3.5.5: added support for additional SSH MAC algorithms.
Discovery client 5.3.5.5: changed the default de-duplication logic to user fingerprints instead of FQDN.
Discovery client 5.3.5.5: fixed an issue with installer not applying some updates during upgrade.
Discovery client 5.3.5.5: fixed an issue with Google Cloud fit recommendation collection to handle various credential formats.
March 30, 2023
A new version of Migration Center is available in Preview.
Preview: You can now use automated scripts to collect data from your AWS and Azure infrastructure and generate tables that you can upload to Migration Center.
Preview: Migration Center lets you upload tables with your infrastructure data that you can manually create using the available templates. Migration Center now supports files up to 100 Mb.
Preview: Migration Center lets you specify multiple migration preferences that can help you customize your migration assessments.
Preview: You can now create groups of assets that share common characteristics, such as functional dependencies or location.
Preview: The total cost of ownership (TCO) summary report is available in Migration Center for assets that are targeted to migrate to Google Compute Engine. You can generate TCO reports to compare the costs of moving your groups of assets based on different migration scenarios that you specify with your migration preferences. You can view TCO reports directly on Migration Center's user interface in the Cloud Console, or export them to Google Slides.
March 07, 2023
The SAP cost calculator is now generally available in the Migration Center cost estimation functionality.
February 16, 2023
Discovery client 5.3.5.4: offline discovery mode is available in Preview.
Discovery client 5.3.5.4: updated Google Cloud fit recommendation scripts to version 1.14.0.
Discovery client 5.3.5.4: Migration Center Collector renamed to Migration Center discovery client.
Discovery client 5.3.5.4: changed VM age to use CreateDate for vSphere collection.
Discovery client 5.3.5.4: moved local log files to %PROGRAMDATA%\Google\DiscoveryClient folder.
September 28, 2022
Migration Center is available in Preview. Migration Center is a new Google Cloud service to streamline migration journeys with intelligent insights and actionable recommendations, bringing together tools and methodologies from rapid cost estimation to migration execution.