v4.0.0

Breaking Changes

• Unify the train, flight and bus data sources into a single dataSources option, and add Map#addDataSource() / Map#removeDataSource() to manage them at runtime
• Load the bundled map style and localization dictionaries from an assets folder relative to the script, so CDN and self-hosted setups work without a separate data server
• Ship a dedicated CommonJS build as main, add ES module source maps, and drop the development UMD build

Features and improvements

• Rebuild the map style on the Mapbox v3 style specification, and introduce a new style with high-definition road, elevated highway and bridge models
• Add fog and adjust the sky atmosphere color
• Overhaul 3D layer lighting: derive it from the Mapbox lights (gamma-correct), animate the sun with throttled updates, and add brightness-based distance fog to the ThreeLayer and Tile3DLayer
• Add the light event and Map#getLight() to read the current directional and ambient lights and the overall brightness
• Handle polar day and night, ramp up the twilight directional light, and warm the sunset ambient color
• Set the time-based lights and sky before the first frame to avoid a color flash
• Determine the clock's time zone from the loaded data (Japan Standard Time, or a GTFS feed's agency_timezone)
• When the gtfsurl parameter is set, show only that GTFS dataset instead of the default Tokyo data and set the clock to its local time zone
• Allow initializing the map with no data by omitting dataUrl
• Support displaying GTFS static-only datasets
• Improve the GTFS and GTFS Realtime loading process and load feeds using multiple workers
• Add a route property to GTFS, apply the route color to the vehicle timetable, and highlight the route when a vehicle is marked or tracked
• Display departure times for GTFS vehicles and show a realtime icon in their popups and panels
• Merge realtime train data from multiple sources
• Support dynamic loading of the train ad data
• Add a "Share this station" button, with an open/close animation on the share panel
• Optimize 3D object meshes
• Calculate vehicle positions using the GPU
• Improve camera parameter calculation at low frame rates
• Improve vehicle acceleration calculations
• Update the operator list in the about panel
• Add French language support and documentation. Thanks @Jouca
• Add Simplified Chinese documentation. Thanks @narakai
• Add prerender and render hooks to ThreeLayer so a custom layer can render into offscreen targets and run post-processing (such as bloom) before compositing onto the map
• Fade markers in and out when they are added to or removed from the map

Data Updates

• Add the Hakone-Tozan, Daiyuzan, Sunzu, Izukyu, Fujikyu, Kashima Rinkai Railway Oarai-Kashima, Choshi Electric Railway, Minato, Utsunomiya Light Rail, Moka, JR Nikko, Joetsu, JR Karasuyama, JR Shinetsu, JR Agatsuma, JR Suigun, Joshin, Jomo and Watarase Keikoku lines
• Add the JR Gotemba line and the JR–Odakyu connection at Matsuda
• Extend the JR Utsunomiya, Joban and Chuo lines
• Change the Shin-Keisei Line to the Keisei Matsudo Line
• Add Air Cambodia, Parata Air, Thai VietJet Air and Alaska Airlines; remove Fly Gangwon; update the IATA code for Techo International Airport
• Replace the Open Data Challenge for Public Transportation 2024 data source with the 2026 edition
• Update Tokyo Metro Marunouchi line timetables according to the schedule revision on December 7, 2024
• Update Nippori-Toneri Liner timetables according to the schedule revision on February 3, 2025
• Revise timetables according to the schedule revision on March 15, 2025
• Update Yukarigaoka line timetables according to the schedule revision on April 1, 2025
• Update Yurikamome line timetables according to the schedule revision on October 18, 2025
• Update Tokyo Metro Ginza line timetables according to the schedule revision on November 1, 2025
• Update Yokohama Municipal Subway timetables according to the schedule revision on November 1, 2025
• Update Toei Asakusa line, Keikyu, Keisei, Hokuso and Shibayama Railway timetables according to the schedule revision on December 15, 2025
• Update Enoden line timetables according to the schedule revision on December 20, 2025
• Revise timetables according to the schedule revision on March 14, 2026
• Update Utsunomiya Light Rail timetables according to the schedule revision on April 1, 2026
• Update Yukarigaoka line timetables according to the schedule revision on May 1, 2026
• Correct the Kanto Railway Joso, Odakyu Odawara, Enoshima, Sotetsu Main, Shin-Yokohama, Tokyu Shin-Yokohama, JR Joban Rapid and JR Gotemba line timetables, and correct train types
• Update operator and railway IDs, and the dynamic properties of railways
• Correct the titles of the Izukyu line and add missing utitle properties for station search
• Update station data of Ashigara, add more station groups, and update station exit poi data

Bug fixes

• Fix the issue where train departure times were displayed incorrectly
• Fix the issue where train names were displayed incorrectly
• Fix the auto-scrolling issue of the train timetable
• Fix the error during data preloading
• Skip GTFS stop_times rows with an invalid departure_time. Thanks @tomaszssadowski
• Make GTFS route lines transparent in underground mode
• Make the year-end and new year holidays non-specific to any particular year
• Fix an issue where trains did not appear immediately when the search mode changed
• Fix the issue where the positions of 3D objects shifted after displaying station exits
• Fix the issue where station thumbnail images failed to load from Wikipedia
• Fix the map cursor by reading the dynamic cursor style from the deck.gl canvas
• Work around an issue where transitions on deck.gl layers did not work properly
• Fix hidden markers intercepting pointer events, which blocked interaction with markers behind them