Today, "Dota 2" officially announced the 7.31 version update, and the new hero "Mastiff" (that is, the boss at the bottom of the Heaven and Earth Labyrinth) joined the game as a new hero! The update also includes bomberman redoes, wild area updates, and plenty of balance updates. However, this update of the map has not changed.

New Hero: The Beast
Savagely clashing between friend and foe, the beast rushed into the battlefield like a natural turmoil. In any kind of battle, the beast is an unavoidable threat, he can punish the attacker, like to grab the prey and repeatedly pound the ground until only the meat paste is left on the battlefield.
The four skills of the Beast (plus the Magic Crystal Skill) are all skills that serve as the boss at the bottom of the Heaven and Earth Labyrinth, including:
Surge: Charge skill, charge in the direction of the target, crash into friendly and enemy along the road, and deal damage to the enemy, the charge distance depends on the charge time.
Stomp: Disarm itself and begin to trample on nearby enemies, dealing AOE damage.
Blah: Passively provides additional attacks; accumulates points after being attacked, and obtains additional armor and attack power after active release.
Hammer: The Beast grabs the target unit and hammers it repeatedly to the ground, dealing ranged damage and a brief stun. (The level 25 talent of this skill has a text error in the game, which is 100% hammer duration instead of 100 seconds...) )
Smash (Magic Crystal): Throws a rock at the target location, dealing damage and a 1.75-second stun. (Smashing has a dead end and cannot be thrown to the minimum range)
No Ward Update:
The arrival of the badger injects new wildness and strength into the wild monsters everywhere. No longer willing to accept punishment, these monsters have evolved into deadly guardians, bravely fighting back when heroes come calling. The wild area is now filled with new active and passive skills, just waiting for the unlucky or careless ghost to capsize in the gutter. Be sure to be careful when walking between these camps. Risk-reward is much scarier than ever.
Bomberman Redo:
After losing multiple contracts with potential teammates for "incoming calls," Twitter's blast engineers have updated the tools in the blast box to make it easier for them to find opportunities on tough days. Finally understanding teamwork, the engineers brainstormed several bomb inventions, came up with new ways to bring joy and pain, and were equipped with more complete tools to show their strength in fierce battles. Some of their livelihood tools may have changed, but the laughter of the terrible trio is still so contagious.
New abilities: Sticky Bombs, Activated Shocks! In addition, in this update, a change has been made to Bomberman's classic skill Blast takeoff, which is now unable to inflict lethal damage on Bomberman (cannot commit suicide).
New items: Undead Brooch (actively use to attack enemies in the Void), Wraith 's Deed (active use to place a movable totem that reduces attacks and skill damage from surrounding units), Boots of Tolerance (Big Green Shoes, crafted from Green Shoes and War Drums)
In addition to the above, the 7.31 update has been redone by engineers, as well as neutral creatures, neutral items, hero large area adjustments, etc.