Version History

2021-07-06 v9.1.0      - playgwent News     Balance changes, Sunset Wanderers
2021-06-08 v9.0.0      - playgwent News     Price of Power Expansion
2021-05-06 v8.5.0      - playgwent News     Triss Journey
2021-04-01 v8.4.0      - playgwent News     Balance changes
2021-03-09 v8.3.0      - playgwent News     Familiar Faces
2021-02-09 v8.2.0      - playgwent News     Yen Journey
2021-01-08 v8.1.0      - playgwent News     Madoc, Tooltip fixes
2020-12-08 v8.0.0      - playgwent News     Way of the Witcher Expansion
2020-11-17 v7.4.1      - playgwent News     META SHAKEUP
2020-10-01 v7.3.0      - playgwent News     Artifact Removal, Balance changes
2020-09-01 v7.2.0      - playgwent News     Ability reworks, Balance changes
2020-08-10 v7.1.1      - playgwent twitter  SK Hotfix
2020-08-02 v7.1.0      - playgwent News     Ciri Journey
2020-07-07 v7.0.2      - playgwent News     Master Mirror Hotfix
2020-06-30 v7.0.0      - playgwent News     Master Mirror Expansion
2020-05-05 v6.2.0      - playgwent News     Balance changes
2020-04-02 v6.1.0      - playgwent News     New Abilities, Journey, Balance (Android is v6.0)
2020-03-03 v5.2.0      - playgwent News     Year of the Wererat, Balance changes
2020-02-04 v5.1.0      - playgwent News     Balance changes
2019-12-13 v5.0.1      - playgwent News     Merchants of Ofir Hotfix
2019-12-09 v5.0.0      - playgwent News     Merchants of Ofir Expansion
2019-10-28 v4.1.0      - playgwent News     Balance changes (29th iOS Release)
2019-10-09 v4.0.3      - playgwent News     Iron Judgment Balance Hotfix 
2019-10-02 v4.0.0      - playgwent News     Iron Judgment Expansion 
2019-08-30 v3.2.0      - playgwent News     Vampire Rework, Balance 
2019-07-31 v3.1.0      - playgwent News     NR Rework, Bronze Rebalance
2019-07-05 v3.0.1      - playgwent News     Syndicate Hotfix
2019-06-28 v3.0.0      - playgwent News     Novigrad Expansion
2019-05-30 v2.2.0      - playgwent News     User Experience Update
2019-04-30 v2.1.0      - playgwent News     Nilfgaard Update
2019-04-04 v2.0.1      - playgwent News     CC Dettlaff Hotfix
2019-03-28 v2.0.0      - playgwent News     Crimson Curse Expansion
2019-02-28 v1.3.0      - playgwent News     Seasonal Trees Update
2019-01-31 v1.2.0      - playgwent News     Thronebreaker Leaders Update
2019-01-10 v1.1.0      - playgwent News     Mulligan Update
2018-12-04 v1.0.1.26   - playgwent News     Console Release
2018-11-07 v1.0.0.15-2 - playgwent News     Artifact Provision Update
2018-10-23 v1.0.0.15   - playgwent News     PC Release

For more information read the official changelog. The card data is sourced from the game so every text error will be included.
This changelog only features balance changes.

New
Buff
Nerf
Rework
Adjustment

Changes

Cards: 20
Construct
This unit's power is always equal to its Armor.
Construct
This unit's power is always equal to its Armor.
Beast
On round start, if Phoenix is in your graveyard, Banish it, then Spawn Phoenix Hatchling and Summon it to a random allied row.
Beast
On round start, if Phoenix is in your graveyard, Banish it, then Spawn Phoenix Hatchling and Summon it to a random allied row.
Human, Cursed, Bandit
Olgierd's power cannot be changed by other cards wherever he is.
Human, Cursed, Bandit
Olgierd's power cannot be changed by other cards wherever he is.
Human, Cursed, Bandit
Order: Heal self.
Cooldown: 1.
Human, Cursed, Bandit
Order: Heal self.
Cooldown: 1.
Human, Cursed
Deploy: Give an allied unit Vitality (4).
Human, Cursed
Deploy: Give an allied unit Vitality (4).
Deploy (Melee): Give Bleeding (4) to an enemy.
Deploy (Ranged): Purify a unit.
Deploy (Melee): Give Bleeding (4) to an enemy.
Deploy (Ranged): Purify a unit.
Beast
Order: Reset this unit's power and Spawn a number of Rats in this row equal to the amount of boost it lost.
Cooldown: 1.
At the end of your turn, Consume a unit to the right.
Beast
Order: Reset this unit's power and Spawn a number of Rats in this row equal to the amount of boost it lost.
Cooldown: 1.
At the end of your turn, Consume a unit to the right.
Beast
Deathwish: At the end of your turn, if there is another Succubus in your graveyard, Summon self from your graveyard to a random row and gain Doomed.
Adrenaline 3: Don't gain Doomed.
Beast
Deathwish: At the end of your turn, if there is another Succubus in your graveyard, Summon self from your graveyard to a random row and gain Doomed.
Adrenaline 3: Don't gain Doomed.
Vampire
At the end of every allied turn, boost self by 1 if there is a Bleeding enemy.
Vampire
At the end of every allied turn, boost self by 1 if there is a Bleeding enemy.
Ogroid
Every allied turn, on turn end, if you control fewer units than your opponent, boost self by 1.
Ogroid
Every allied turn, on turn end, if you control fewer units than your opponent, boost self by 1.
Human, Soldier
Deploy: Transform an allied unit into Slave Infantry.
Human, Soldier
Deploy: Transform an allied unit into Slave Infantry.
Human
Whenever you play a unit with power less than 4, set its power to 4.
Devotion: Increase the power limit to 5.
Human
Whenever you play a unit with power less than 4, set its power to 4.
Devotion: Increase the power limit to 5.
Deploy: Damage an enemy unit by 3.
Barricade: At the end of your turn, lose Armor and boost self by that much.
Deploy: Damage an enemy unit by 3.
Barricade: At the end of your turn, lose Armor and boost self by that much.
Deploy (Melee): Purify a unit.
Deploy (Ranged): Give an allied unit Vitality for 4 turns.
Deploy (Melee): Purify a unit.
Deploy (Ranged): Give an allied unit Vitality for 4 turns.
Witcher
Deploy: Gain 1 Armor for every damaged unit.
Adrenaline 4: When your opponent plays a unit on their side of the battlefield, damage that unit by Arnaghad's power and damage Arnaghad by that unit's power.
Witcher
Deploy: Gain 1 Armor for every damaged unit.
Adrenaline 4: When your opponent plays a unit on their side of the battlefield, damage that unit by Arnaghad's power and damage Arnaghad by that unit's power.
Witcher
Deploy: Spawn a Deafening Siren on the opposite row and damage all units on that row by 1.
Adrenaline 3: Spawn a Deafening Siren on the opposite row and damage it by 1 instead.
Witcher
Deploy: Spawn a Deafening Siren on the opposite row and damage all units on that row by 1.
Adrenaline 4: Spawn a Deafening Siren on the opposite row and damage it by 1 instead.
Human
Deploy (Ranged): Damage self by 3, then move a card from your deck to your graveyard.
Human
Deploy (Ranged): Damage self by 3, then move a card from your deck to your graveyard.
Human, Pirate, Tidecloaks
Prevent the unit to the left of Sukrus from taking any damage.
Human, Tidecloaks
Prevent the unit to the left of Sukrus from taking any damage.
Human, Firesworn, Cleric
Whenever you play a unit next to Prophet Lebioda, give it a Shield.
Human, Firesworn, Cleric
Whenever you play a unit next to Prophet Lebioda, give it a Shield.
Machine, Crownsplitters
Profit 1.
Fee 2: Damage an enemy unit by 1.
Increase damage by 1 for each adjacent Crownsplitter.
Machine, Crownsplitters
Profit 1.
Fee 2: Damage an enemy unit by 1.
Increase damage by 1 for each adjacent Crownsplitter.