game no longer crashes after delayed action taken twice
game no longer freezes if assassins are engaged in combat and defeated with another hero than Arantir
fixed possible multithreading synchronization crash after map loaded and voice over was playing
fixed possible crashes when multiple combats triggered simultaneously for same player
fixed game crash when player dispels hero curse with several ghosts
fixed possible game freezing after a dialog scene at mission end

Camera, graphics, interfaces for Heroes 5 Patch 3.1 for the Tribes of the East:

fixed empowered spells announcing again and again when getting artifacts and new skills and having no Destruction Magic skill
fixed showing player money, instead of ally's money, when accessing allied town's Town Build through Kingdom Overview
fixed ignoring selected upgrades when hiring a "Buy All" caravan from another town
fixed fast skipping several turns by quickly pressing End Turn button in missions with no AI opponents
fixed sound not played for Stables at adventure map added special Ghost Mode path plotting for Ghosts
fixed dead stacks lying around Cyclops having tooltips and sometimes shown as they can be attacked
fixed Defile Magic animation fixed announcing Blood Rage bonuses ahead of actual attack
fixed and extended combat log messages fixed creatures numbers remain at battlefield after killed by Arcane Crystal added Dungeon's Elemental Vision for player in Duel game
fixed gaining gold amount shown in red at town Marketplace's Artifact Selling
fixed Next Hero button switching to sleeping heroes
fixed Multiplayer Profile Alignment calculation
fixed Rain of Arrows perk available in spell book when there are no more visible favorite enemies present
fixed cursor showing day path incorrectly when moving from boat to land having a Snatch ability
fixed Inferno and Dungeon towns sacrificial building incorrect button tooltips
fixed updating of turns counter at Town screen, Hero screen, Creature Info screen and Ghost Info screen (for Simultaneous Turns)
fixed incorrect income details sometimes shown at first day of the game
fixed interface actions not blocked properly on enemy turns and while playing scripted scenes
fixed opening of Walker's Hut interface by shortcut ("Y" key) at Stronghold town when this building wasn't built yet
fixed host can set password of only 1 character and clients will be unable to connect blocked active hero sleep/wake triggering when interface blocked and on enemy turns
added face to hero's tooltip in combat
fixed occupied slots game information in LAN and Ubi.com Multiplayer lobbies whengame creator closes some slots or switch them to A.I.
fixed player could detect invisible creatures from cursor's shape using Goblin Trappers's ability
fixed false Stunning Blow animation after Word of the Chief
fixed defending army without hero could see creatures elements when attacked by wizard hero with Elemental Vision perk

Gameplay, mechanics, balance in Heroes 5 Patch 3.1 for the Tribes of the East:

fixed Zehir's ability to summon creatures if he doesn't have enough resources
fixed double playback of cutscene if user double-clicks on the ritual place

Adventure mechanics and A.I.:

fixed possibility to build Grail structure in Stronghold town if town level is below 15
fixed impossibility to finish multiple level ups after mission was already won
fixed not giving growth bonus for several moon weeks of creatures
fixed entering by hero, but not capturing enemy town when attacking only gate cell threaten by enemy hero
fixed retreat possibility checking for simplified combats to fit one used in actual combats
fixed ship's model displayed incorrectly after crossing whirlpools in a fast manner
fixed alternative upgrades of Haven creatures can't be trained
fixed multiple clicked objects triggering (Seer Hut, Sylana's Ancient and other)
Stronghold's town Halls now refill Barbarian hero's mana to maximum after a turn
Astrologer Tower week change will now generate monsters at weeks of creatures and display moon weeks announcements
Astrologer Tower week change will now affect creatures reserves in towns and dwellings, giving bonuses and penalties
fixed hero remembers artifact set part combined after removal when he has same type of artifact in his bag already
fixed heroes specializations weren't working for upgrades of creatures
fixed A.I. heroes could stuck in front of caravans
fixed Arcane Excellence to give +100 mana only once
fixed heroes didn't learn spells from Academy town after Library build

Combat mechanics and A.I.:

fixed Tactics skill working incorrectly when two heroes with the skill meet in battle
fixed Battle Griffin can land at occupied position
fixed Nomad Centaur does not use Maneuver abilities correctly
fixed Nightmares Fear attack
fixed retaliation strike from a friendly units attack under Puppet Master or Frenzy spell only affects other friendly units
fixed combat AI abusing Defend command and using only Wait command and thus making its army more vulnerable
fixed Arcane Crystal explode making open gate shown as closed
fixed Arcane Crystal dealing damage to siege walls, gate and towers
fixed Mask of Equity giving double bonuses
fixed heroes fleeing estimation for Hard and Heroic difficulty levels
fixed spells working for Barbarians and war cries working for other heroes classes when given from Editor
fixed situation when creature moves with attack under Storm, dies on path, but still attacks target
fixed making further attacks after stack already died
fixed Sylvan hero can use Rain of Arrows perk on invisible units
fixed Deadly Strike, Vorpal Sword and alike attacks reduced by Blood Rage damage reduction
fixed Evil-eye not casting debuff onto secondary targets
fixed duel 3x3's illegal combat bonuses granted to gated units as a consequence of switching heroes
fixed duel 3x3's possibility to cast Defile Magic to another hero than one that is opponent's active
fixed duel 3x3's applying Helmar's artifact set effects (Dwarven set)
fixed duel 3x3's war machines destroyed for all enemy heroes at once
fixed duel 3x3's incorrect combat bonuses and Firewall working while switching heroes
fixed phantom creatures become non-phantom after Vampirism spell applied to them
fixed Hives could attack invisible creatures
fixed Ride By Attack was used when creature runs away
fixed entangled Treants runs away
fixed Lucky Spells not working for empowered Deep Freeze
fixed AI ignores summoned creatures
creatures under Puppet Master or seduction now can be attacked by both armies
fixed orcish heroes (Haggash duel preset) could have spells from artifacts (Banish)
fixed March of the Golems was not affecting Magnetic Golems' initiative
fixed Horned Leapers could leap when entangled
tuned AI to use spells in more active manner
fine-tuned A.I. combat targeting, including avoiding of damaging own creatures by destroying Arcane Crystal

Random Map Generator in Heroes 5 Patch 3.1 for the Tribes of the East:

bug with abandoned mine fixed ( it supplied only gold before )
bug with snow road movement penalty fixed
new objects added: Redwood Observatory, Den of Thieves, Eldritch Well
fixed rare bug with isolated players zones

Heroes 5 Patch 3.1 for the Tribes of the East Map Editor:

crash fixed when trying to make screenshot if AI-Geometry mode is active.
fixed any heroes can have Barbarian's abilities

Scripts:

fixed scripted AI was unable to find path to target through heroes' threat area
fixed IsHeroInTown script command
fixed MessageBox function callback to be called even after message box was closed automaticlly on timeout or turn switch
now CaptureTrigger object field works for monsters banks buildings, game will try to call given script function when bank captured
fixed growth bonuses was not taken away after dwelling was destroyed from script
fixed removing of last creature from stack when there are still more stacks available in monsters army
added additional parameters to several script functions
added new script functions