Version 5.5 also finalized the iconic IDE interface with pull-down menus that would define the look of software development for years to come. It introduced a step-by-step debugger and context-sensitive help that allowed developers to copy code snippets directly into their projects—a precursor to modern IDE features. 4. Legacy: From Anders to Delphi Turbo Pascal 5.5
The Official OOP Guide (now a cult classic among retro-coders) famously told users to "strive to forget what people have told you about OOP" and just sit down and try it. 2. The Language Evolution Turbo Pascal 5.5 Object Oriented Programming Guide
Automating the creation and cleanup of object data. 3. The "Blue Box" Era Version 5
Flexibility in how memory was handled.
Larry Tesler’s work for the Macintosh. Turbo Pascal 5.5 Object Oriented Programming Guide