Improved interface and performance enhancements for a better study experience.

Major update — Part D: Sound & Light Signals now fully integrated. New interactive graphics, exam questions and comprehensive coverage of sound signals, light signals and their applications. As always, further UI refinements and performance improvements throughout

Major update — Part D: Sound & Light Signals now fully integrated. New interactive graphics, exam questions and comprehensive coverage of sound signals, light signals and their applications. As always, further UI refinements and performance improvements throughout

Bug fixes, and interface improvements.

Bug fixes, and interface improvements.

You can now adjust text size and brightness for easier reading. New toggle to skip confirmation prompts when skipping questions. Cleaner, smoother interface with improved spacing and responsiveness. Bug fixes - some views not displaying correctly.

You can now adjust text size and brightness for easier reading. New toggle to skip confirmation prompts when skipping questions. Cleaner, smoother interface with improved spacing and responsiveness.

Major Part C update. Improved explanations for fishing, pilot, mine clearance, aground and anchor situations, with clearer guidance on length, aspect and exam style wording. Plus some performance, layout improvements and bug fixes.

Major Part C update. Improved explanations for fishing, pilot, mine clearance, aground and anchor situations, with clearer guidance on length, aspect and exam style wording. Plus some performance and layout improvements.

Major Part C update. Improved explanations for fishing, pilot, mine clearance, aground and anchor situations, with clearer guidance on length, aspect and exam style wording. Plus some performance and layout improvements.

Minor fixes and improvements.

Minor fixes and improvements.

• The Skip button now skips individual questions instead of whole sections — more control, less hassle! • Minor fixes.

What’s New • The Skip button now skips individual questions instead of whole sections — more control, less hassle! • Minor fix to the COLREGs introduction: graphics now correctly show Annexes I–V instead of I–IV.

Improved overall performance and stability. Flashing light animations for Air-cushion vessels and WIG Craft now operate at the correct speed for enhanced accuracy and realism.

General performance and stability improvements.

-General performance and stability improvements.

-General performance and stability improvements.

-General performance and stability improvements.

-General performance and stability improvements.

-General performance and stability improvements.

-Added new content for an enhanced experience. -Improved user interface for a smoother interaction. -Enhanced graphics for a polished look. -General performance and stability improvements.

-Added new content for an enhanced experience. -Improved user interface for a smoother interaction. -Enhanced graphics for a polished look. -General performance and stability improvements. Thank you for using Master-Nav!

Release Notes for Version 1.22: In this update, we are excited to introduce several enhancements Expanded Content: We've added additional comprehensive content to Master-Nav, ensuring thorough coverage of COLREGS from Part A to Part D (Rules 1-37), including Annex IV Distress Signals. Extensive Question Bank: Prepare with confidence as we now offer over 1000 questions, providing a robust resource for effective memorisation and periodic review of the COLREGS. Part D Sound and Light Signals: Experience improved graphics in the Part D section, enhancing visual clarity. We've also incorporated additional questions to further reinforce your understanding. These updates aim to enrich your learning journey, offering a more comprehensive and engaging study environment.

Release Notes for Version 1.21: Added additional content. Master-Nav now comprehensively covers COLREGS Part A to Part D (Rules 1-36). Now over 1000 questions are available to aid in effective memorization and refreshment of the COLREGS.