Scheduling Accuracy & Reliability Update
Fixes stale calculations, multiple dependency analysis, misleading Dashboard alerts, fractional S-Curve progress and Gantt recovery.
Explore this release →PRODUCT UPDATES · RELEASE HISTORY
ProjectEngine Releases & Updates
Explore the history of our open-source Excel scheduling engine: new project controls features, Gantt improvements, simulation, internationalization and reliability fixes.
Latest: v1.5.1 — More accurate scheduling, critical-path and float analysis, trustworthy reporting and safer migrations. Read what's new →
Version history
Financial Project Controls & Multi-Project Management
Track activity budgets, actual expenses, cost forecasts and cash flow, with independent and shared financial data across projects.
Explore this release →Interactive Tutorial & Modernized User Experience
A 29-step bilingual tutorial with Discovery and Practice modes, redesigned dialogs, smarter message windows and improved onboarding.
Explore this release →Excel Ribbon, Project Migration & Gantt Navigation
Embedded 18-command Ribbon, import of previous ProjectEngine projects, first-use welcome screen, better Gantt navigation and reduced redundant Excel writes.
Explore this release →Zero-Dependency Stability Hotfix
Fixes Full Update, Forced Planning Update and Gantt refresh in valid schedules with no predecessors.
Explore this release →Internationalization & Excel Compatibility
Language-independent schemas for 81 visible columns, global date formats, Excel Notes fallback and S-Curve cache fix.
Explore this release →Scheduling Consistency & Gantt Reliability
Improved predecessor updates, summary SS/FF analytics, Longest Path REX and dependency-arrow reliability.
Explore this release →Unified Gantt Engine & Large-Project Improvements
Unified Gantt update pipeline, differential rendering, one SVG dependency layer and improved large-project responsiveness.
Explore this release →Live Simulation Analytics & Gantt Reset
TEST and Drag & Drop now recalculate critical path, longest path and float; Reset restores the prior calculated view.
Explore this release →First Stable Scheduling Engine
First stable baseline integrating dependency scheduling, critical-path analytics, simulation, Gantt, Dashboard and S-Curves.
Explore this release →For every published asset, complete technical details and historical pre-releases, visit the official GitHub release archive. Dates and numbering follow the original GitHub releases; the summaries here are curated for discoverability.