Kyoto Racecourse is the published map. It has three tracks: long turf, medium turf, and short dirt. Lap lengths, corner counts, and item placements are not on the cards.
What does change by track
V0.12 increased ultimate meter regeneration on the dirt track. The amount is not printed. Long and medium turf do not have a matching note. If your ultimate is late, the short dirt track is the one the patch called out.
A tutorial map exists as its own card with no layout text.
Weather
The public-beta weather list is Clear, Night Clear, Rainy, Rainy Night, Space, Sunny, Sunrise, and Sunset. Dark Hour and Blood Moon were listed as Halloween weather and marked not yet available in the beta notes. V0.13 added a Halloween lobby and new weathers without naming Dark Hour or Blood Moon again. V0.14.5 removed the Halloween lobby and said the event was still ongoing. Later cards do not say whether those weathers are in the rotation now.
Bots and servers
Bots use a strategy based on their pack position. Difficulty scales with the median quantity and quality of perks owned by players in the server. Races hold up to 15 players. You can spectate. A preference added in V0.11 can hide results from races you did not run.
V0.15 fixed race teleports in both directions and perks that failed to initialize on load. If a return-to-lobby teleport fails, that bug has been patched more than once already, including an attempt in V0.14 and a high-ping fix in V0.11.