CircuitWorks CircuitWorks™ is available in SOLIDWORKS® Standard, SOLIDWORKS Professional, SOLIDWORKS Premium, and SOLIDWORKS Ultimate. Contents Undo Latest MCAD Changes in CircuitWorks (2025 SP1) You can now undo the latest MCAD changes if the ECAD has not started working on them. Restore Collaboration State after SOLIDWORKS Restarts or Crashes (2025 SP1) CircuitWorks now includes a collaboration recovery feature that lets you resume your ECAD and MCAD collaboration smoothly in the event of a SOLIDWORKS restart or crash.