No. It does not fix all the crash problems. I just downloaded and installed the new DxO Nik Collection, and it is an improvement, but not everything is fixed. There are still stability issues (repeatable crashes) with the latest Photoshop CC on High Sierra 10.13.4, but not as many as there used to be. The “New Features” (compatibility and stability) advertised seem to be no more than marketing hype. There is even a new double-processing/double-layer bug in Color Efex Pro when apply in a separate layer is selected in settings. On the bright side, Analog Efex Pro 2 seems to work just fine and Silver Efex Pro 2 no longer crashes EVERY time if apply in current layer is the setting. It will crash every time if apply in a separate layer is selected.
Users should beware to always save an image in Photoshop before opening Nik, so if Nik should crash, you won’t lose unsaved editing work done prior to opening Nik.
Apple just released the latest OS version, High Sierra 10.13.5. I am afraid to install it. I don’t want to lose even more functionality with DxO Nik Collection. Does anyone know how well the Collection plays with the latest OS?