Solidworks 2014 ((exclusive)) -

Simulation became more integrated into the design phase rather than just a post-design check:

A dedicated mate for bolts and pins in slots, eliminating the need for multiple manual constraints. Solidworks 2014

Before 2014, mating components in an assembly required manually selecting faces and aligning planes. SolidWorks 2014 introduced (specifically for routed systems and tubing). This allowed pipes and connectors to snap into position automatically, reducing assembly time for complex plumbing designs by up to 70%. For users in the oil, gas, and hydraulic industries, this was a game-changer. Simulation became more integrated into the design phase

32-bit OS was only supported for simple, single-part modeling and was not recommended for production. This allowed pipes and connectors to snap into

A controversial yet forward-thinking move was the release of the (now defunct). This allowed users to view, mark up, and measure 2D drawings on iOS and Android tablets. It was one of the first serious attempts by Dassault Systèmes to move CAD data to mobile platforms.