The clunky, legacy icons were replaced with a cleaner, flatter aesthetic that aligned with Windows 10's release.

The "PGS" (Projected Gauss-Seidel) physics solver began its rollout, offering more stable simulations for complex machinery and vehicles compared to the old spring-based physics. Scripting and Logic

2015 introduced several technical milestones that expanded the scope of what was possible on the platform:

In summary, Roblox Studio 2015 was the year the platform grew up. It moved away from being a simple "LEGO-like" building tool and began its journey toward becoming a serious competitor in the game development industry.

Developers gained better control over their workspace, allowing them to snap windows like the Explorer, Properties, and Output to custom layouts more reliably. Major Feature Additions