7.0 is an NI instrument driver that controls every aspect of your DAQ system, including signal conditioning, from configuration to programming in LabVIEW to low-level OS and device control.

Added support for the PXIe-4466
is National Instruments' current-generation data acquisition driver. NI-DAQmx incorporates an entirely new driver architecture and API, complete with new VIs/functions and development tools for controlling National Instruments DAQ devices. NI-DAQmx is entirely separate from the Traditional NI-DAQ driver. The architectural changes and new features allow NI-DAQmx to deliver increased ease-of-use and improved performance over the Traditional NI-DAQ driver.
has equipped eeers and scientists with tools that accelerate productivity, innovation and discovery. NI's graphical system design approach to eeering provides an integrated software and hardware platform that speeds the development of any system needing measurement and control. The company's long-term vision and focus on improving society through its technology supports the success of its customers, employees, suppliers and shareholders.
NI-DAQmx

Bug Fixes
Bug fix lists document technical problems that NI has acknowledged and resolved in a specific version of a product.

https://www.ni.com/en-us/support/documentation/release-notes/product.ni-daqmx.html#version-20-7