Changelog

Week of April 27

Fixed grass poking through roadside cropland
Improved tunnel appearance, cleaned up terrain "hole punching"
Added smoothing to tiny streams
Fixed lag/freezing when loading buildings in dense urban areas
Fixed event time weirdness
Fixed rider angle when stopped and teleporting
Fixed pressure wave effect for lead riders
Fixed shadows at sections of singletrack / gravel roads
Improved bridges
Featured routes are now online-enabled

Week of April 20

GPU memory tuning + crash recovery improvements
Added memory usage stats to the Debug overlay (SHIFT + Z)
Improved memory usage of the wireframe mesh mode
Fixed trees not respawning properly when restoring a tile from cache
Cleaned up logging
Switched to better elevation data source
Tweaked water depths / widths
Experimental: added /routes/draw page for building new routes
Fixed duplicate BLE connection attempts for native apps
Standardized fetch() requests – to make log viewing easier

Week of April 13

Added automatic GPU crash recovery
Added more multiplayer latency handling
Roamer bot FTP is now 55% - 110% user FTP
Removed unnecessary dependencies, reduced load size
Modernized site-wide reactivity (Svelte 5)
Added automatic (and manual) debug log uploading

Week of April 6

Fixed TTT team assignment for late joiners (hopefully?)
Reduced Ego resolution to fix jersey distortion
Updated bot archetypes (they should be smarter now)
Improved multiplayer latency handling
Standardized cadence-based stand pedaling across all rider types
Clarified "Forgot password?" text
Major internal code cleanup
New website design (sorry, all the purple got to be too much)
Fixed end-of-route turnarounds
Fixed surface types at loop boundaries (props Dan C.)
Fixed route editor surface type annotations at loop boundaries
Better GPU frustum culling for grass/trees
Fixed rider shadows
Fixed dense urban area freezes — removed expensive building overlap detection, added frame-budget yields
Removed three.js animation dependencies
Cap stand-pedaling to 60rpm
Fixed rider speed issue w/ Maximum view distance – birds exceeded their buffer limit, causing a GPU breakdown
Added dark mode
Updated elevation chart colors (based on Jim's feedback)
Fixed Route Editor's dark mode styling

Week of March 30

Rebuilt 3D engine (migrated from WebGL to WebGPU)
New 3D engine = improved performance, plenty of room to grow
Roamer bots - new archetypes (Sprinter = red, Climber = teal, Rouleur = blue, Puncher = gold, Domestique = grey)
Revamped "Time of Day" setting for options for Morning, Afternoon, Evening, and Night(!)
Added night-time headlights and taillights
Added night-time stars ⭐️
Refactored rider logic to be more portable (hint: server bots)
Removed the unnecessary "Drafting enabled" setting
Fixed duplicate guardrails
Improved tunnels
Races - disabled auto braking near the finish line
Added &renderer=webgl fallback just in case
Added GPU memory management to prevent device loss on memory-constrained hardware.
Added "Maximum" View Quality setting (4x MSAA)
Events: fixed rider weights
Events: fixed rider lateral positions (props Lorenzo & Wouter)
Mini-map: switched to (much more efficient) raster version

Week of March 9

Rebuilt pack dynamics model (note: fine-tuning ongoing)
Pushed bridge railings outwards to prevent road overlap
Widened and forced tunnels to asphalt
Improved tree placement (avoid water and buildings)
Improved side roads with banking and concrete skirts
Properly handle islands (i.e. geometry holes within water)
Ignore intermittent water features
Capped bot cadence to 100rpm
Major performance improvements (up to 40% less CPU strain)
Reduced tree processing time by up to 97%
Rasterized ground types for quicker lookups
Improved terrain generation logic

Week of March 2

Fixed building roof / window flickering (for NVIDIA GPUs)
Improved building ground depth placements
Input mapping: prevent multiple gear shifts per click
Settings: added ability to change email
Settings: added ability to delete account (requires email verification)
Fixed issue with wrong land types (i.e. too many trees)
Fixed TTT results not include riders who leave signup after finishing
Working on improvements to pack dynamics...

Week of February 23

3D: added side roads
3D: greatly improved water features (even creeks & streams are rendered)
3D: automatic bridges over water
3D: added railroad tracks 🚂
3D: better looking cobblestones
3D: switched to better source data for land features
3D: refactored environment loading (camera-focused)
3D: spectating is now a lot better; high-res assets around the camera
3D: numerous performance improvements
3D: better async loading
3D: cleaner debug panel (F4)
Physics: fixed road-surface Crr
TTT: fixed drafting for late-join team members
Fixed guardrails at loop boundaries
Fixed flickering roads near finish line (A->B routes)
Fixed flickering building roofs (hopefully)
Fixed building de-dupe logic
Improved 2D trees

Week of February 16

3D: improved buildings (added roofs, windows, etc)
3D: procedural building and roof textures
3D: procedural road / snow textures
3D: added cloud movement, slight shape tweaks
3D: fixed shadow issues when moving fast (due to FOV)
3D: increase camera angles
3D: added mileposts
3D: added surface types (with different Crr)!
New surface types: asphault, rough, cobblestone, dirt, gravel, singletrack
Route Editor: added layers support
Route Editor: added support for surface types
Route Editor: cleaned up layout
Fixed Companion page (props Josef)
Fixed auto-switching to "Virtual gear" mode
Exit fullscreen on quit
Improved time format for events and challenges
Improved file loading to support large activities (props Falk 😆)

Week of February 9

Group workouts: complete overhaul
Group workouts: anyone can host a workout (not just the event creator) as long as there's no active workout
Group workouts: participants can join a workout via "Join" button
Group workouts: participants can enable rubber-banding to stay with the host
Group workouts: participants can request control of workout
Group workouts: event creator can force control of the workout
Group workouts: if the host leaves, another participant will be made the host
Rider list: added button to cycle the displayed stat (W/kg, Watts, Speed)
Event series: stages can now be sorted
Event detail: added attendee search
Event detail: added new "Attendance" and "W/kg" columns (sortable)
Major website design cleanup
Updated dashboard design + new stats
Workouts: display repeating intervals as groups with the repeat count
Added basic chat profanity filter
Under-the-hood fog improvements (no more three.js patches)
Added guards to prevent missing tiles from causing JS errors
3D performance improvements and tree fixes

Week of February 2

Added UI for custom key mappings (in-ride "Help" tab)
Added Context Menu (in-ride keyboard and controller-friendly actions)
Added support for Zwift Ride
Added support for Zwift Play
Added support for Wahoo KICKR BIKE PRO
Added support for Wahoo KICKR BIKE SHIFT
Much better environment loading when using cinecam mode
Improved routes map view (much better loading)
Fixed some route editor "closest point on route" bugs
Fixed ordering of series page (nearest upcoming events first)
Fixed series edit page - update event titles when the series title changes
Tons of code cleanup and restructuring
Added athlete list page
Added teams
Added new roles: club owner, club admin, team leader
Clubs - club owners + admins can manage the club, its teams & members
Teams - team leaders can add/kick team members
Revamped TTT signup - simply click "Signup" and BT handles the rest
Improved the Help Center (better navigation)
Fixed spectator mode bug
Added 10-second rolling start to mass-start races
Teleport distance supports both mi / km (depending on user settings)
Only auto-switch to "Virtual Gear" if a button device is detected
Improved tree / foliage performance and rendering
Auto-scale and optimize uploaded jersey images
Much faster website loading (moved servers)
Migrated from mysql to postgres
Rewrote the API to JS
Fix: allow non-keyboard hotkey bindings when chat is focused
TTT: any team member can now start / abort the countdown
Added edit support for route collections

Week of January 26

Major changes in progress (see next week)

Week of January 19

Route editor: re-added altitude nudging tool
Route editor: improved quality assessment scores
Route editor: improved elevation smoothing tool output
Route editor: improved trackpad interaction with elevation graph zooming
Route editor: added rightclick + drag for region zooming, and a "reset zoom" button
Route editor: added "Clear all brunnels" button (under "Advanced options")
Route editor: minor button styling tweaks
Route editor: fixed the "Altitude alignment" tool to ignore brunnels
Route editor: prevent auto-annotated bridges for routes below sea level
Route editor: fixed tunnel auto-annotator ignoring situations where the route legitimately passes below sea level
Route editor: fixed rare occasions of points missing altitude lookup data
Route editor: performance improvements
Fixed route page elevation chart
Added better modal when requesting route publication
Added event series support
Added series page
Updated route elevation graph colors
Fixed route collections page
Fixed power2 readings when power meter disconnects
Internal improvements

Week of January 12

Rebuild the activity page charts (you can now click + drag to zoom in)
Activity charts show "power2" if available, to compare trainer vs power meter readings
Removed Chart.js (in favor of in-house charts)
Refactored the FIT file encoder (skip unused fields to save space)
Fix: don't load workouts during races (props Matjaz 😆)
Fix: clear the workout when quitting a ride
Drafting: smoothed out rapid changes for more stability
Drafting: reduce when descending (proportional to grade)
Added Zwift Play steering support (use < > arrows)

Week of January 5, 2026

Fixed multiplayer reconnect issues
Added latency stat below the rider list
Fixed ITT bug where pausing/resuming would reset the start time
Fixed TTT bug where a team's countdown timer would affect another team's start time
Fixed "Join challenge" link not working
Added custom branding for Tour du Monde
Added a modal to let ITT riders know they can start manually
Added Tundra biome
Fixed "hugging" pacer bots when ego is stopped
Fixed loading / LoD bugs