Here is the changelogs:

Mini-changelog:

-Fixed a serious bug that would cause the game to crash on group creation
-Changed Lord of Avernus's model to the one introduced in 6.59

-Gave Bat Rider an air-to-air attack while flying, which should remove
the bug where he would permanently gain damage upon flying down
-Removed warning message for incomplete AIs when playing Deathmatch (or new Formless Mode)

*Formless Fixes
-Formless can now learn Quill Spray, Bristleback, Warpath
-Fixed a bug with Formless not being able to reset Clockwerk's abilities

And...

-Added new single-player mode: Formless mode (-formless, -fm), which
will allow the player to play as Formless and cause the AI to cycle
through heroes as they die. No limitations on duplicate heroes picked
by AI (except Meepo, who has been disabled). Abilities are not lost
when Formless dies, this may change in future versions. -fm can be
combined with non-gamemode switches (like -fr, -st, -ne, etc.)

Рекомендации к установке карты: Поместите скачанную карту в папку Maps
в той директории, в которой у вас установлена сама игра; обновите игру
до последней версии (для этого можно скачать патчи с сайта из раздела "Патчи" или просто зайдя в систему Battle.net, если вы являетесь владельцем официальной русской версии игры от компании "СофтКлаб".