Changelog

Launched one-time purchase pricing with four tiers: Free, Fundamental ($16), Professional ($32), and Max ($64)

Added academic discount for students, educators, and researchers with institutional email

Improved landing page performance with lazy-loaded sections and deferred asset loading

Enhanced SEO with structured data (JSON-LD) on all public pages

Redesigned pricing cards with clearer feature comparison layout

Fixed navigation menu not closing on route change in mobile view

Resolved intermittent 404 errors on dynamically generated circuit template pages

SimCast interactive lesson player with step-by-step guided circuit walkthroughs

Component documentation pages with live interactive examples and truth tables

Local IndexedDB autosave with debounced flush — circuits persist instantly between sessions

Improved undo/redo system now supports up to 200 history steps

Enhanced keyboard shortcut system with customizable key bindings

Fixed oscilloscope waveform rendering artifacts at high zoom levels

Corrected wire routing algorithm for complex multi-layer circuits

Expanded the pre-built circuit template library across multiple categories including combinational, sequential, and arithmetic

Featured circuits showcase on landing page with interactive previews

Improved .digi file export and import workflow for portable circuit sharing

SEO-friendly template circuit URLs with descriptive slugs

Performance improvements for circuits with 500+ components

Fixed timing diagram export producing incorrect scale on high-DPI displays

Resolved issue where pasted components lost their custom label text

Multi-language support with full translations for English, Spanish, Japanese, Korean, and Chinese

Language switcher in the navigation bar with automatic locale detection

Localized marketing site including all landing, pricing, and documentation pages

Migrated all static text to i18n translation framework for easier community contributions

Added hreflang tags and alternate URLs for improved international SEO

Fixed character encoding issues in exported circuit filenames for CJK languages

Corrected RTL text alignment in component property panels

Comprehensive documentation system with interactive component guides

Interactive circuit previews embedded directly in documentation pages

Quick-start tutorial series for first-time users covering basic to intermediate circuits

Component search now supports fuzzy matching and category filtering

Improved canvas zoom and pan performance on touch devices

Fixed tooltip overflow on narrow viewports when hovering over components

Resolved memory leak when rapidly switching between large circuit files

Completely rewritten simulation engine with 10x faster propagation for complex circuits

Full UI redesign with a modern dark theme, resizable panels, and tabbed workspace

Local browser-based circuit storage with autosave and crash recovery

Multi-tab workspace with independent simulator instances per tab

New wire rendering engine with automatic routing and orthogonal path optimization

Redesigned component palette with drag-and-drop, favorites, and recent items

Addressed dozens of stability issues from the v1.x architecture

Advanced components: RAM, ROM, and configurable ALU with selectable operations

Assembly Program Loader for writing and executing simple programs on simulated processors

Bus component for multi-bit signal grouping and data transfer

Expanded component library with tri-state buffers, decoders, and priority encoders

Added timing diagram panel for visualizing signal waveforms during simulation

Fixed flip-flop components not respecting setup and hold time constraints

Corrected propagation delay calculation for deeply nested subcircuits

Initial public release of DigiSim — a web-based digital circuit simulator and learning platform

Core logic gates: AND, OR, NOT, NAND, NOR, XOR, and XNOR with configurable input counts

I/O components including switches, push buttons, LEDs, seven-segment displays, and clock generators

Interactive canvas editor with grid snapping, zoom controls, and minimap navigation

Circuit export and import in JSON format for local backup and sharing

Responsive design supporting desktop, tablet, and mobile screen sizes

Stabilized simulation loop to prevent race conditions in feedback circuits