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title: "What's New"
canonical: "https://docs.infoblox.com/space/IBNMRI742AG/12746968/What's%20New"
format: markdown
---
> Macro (anchor)

> Macro (anchor)

The following features are new for this version of NetMRI:

- Discovery of SDN and SD-WAN devices: y<span style="color: #000000">ou can now discover SDN and SD-WAN devices from Cisco ACI and Cisco Meraki. For more information, see </span>[*<u><span style="color: #000000">Configuring Discovery for SDN and SD-WAN</span></u>*](https://infoblox-docs.atlassian.net/wiki/spaces/IBNMRI742AG/pages/12746862/Running+Network+Discovery#RunningNetworkDiscovery-ConfiguringDiscoveryforSDNandSD-WAN)<span style="color: #000000">.</span>
- <span style="color: #000000">Control over device polling frequency: you can modify the default polling frequency for all devices or for specific device groups based on your production needs. For more information, see </span>[*<u><span style="color: #000000">Setting Polling Frequency for a Device Group</span></u>*](https://infoblox-docs.atlassian.net/wiki/display/IBNMRI742AG/Devices+and+Interfaces#DevicesandInterfaces-SettingPollingFrequencyforaDeviceGroup)<span style="color: #000000">.</span>
- <span style="color: #000000">Dynamic VM sizing: improved process of resource allocation for NetMRI on virtual machines based on available virtual resources. This ensures most efficient device polling intervals and maximum performance.</span>
- <span style="color: #000000">Infoblox Benchmark tool: the tool evaluates available resources on your NetMRI virtual machine and, based on that, provides a recommendation as to device capacity of the VM. For more information, see </span>[*<span style="color: #000000">Benchmarking for the Operations Center</span>*](https://infoblox-docs.atlassian.net/wiki/spaces/IBNMRI742AG/pages/12746934/Installing+and+Deploying+the+NetMRI+Operations+Center#InstallingandDeployingtheNetMRIOperationsCenter-BenchmarkingfortheOperationsCenter)<span style="color: #000000">.</span>

For additional information about improvements and updates in NetMRI 7.4.2, see the Release Notes on the [*<u>Infoblox Support Site</u>*](https://support.infoblox.com/app/utils/login_form/redirect/home).