Full v. 1.4 changes:

[General] New enemy: Goblin Leader

[General] New enemy: Ripper King (Level 1 mini-boss)

[General] New enemy: Shadow Master (Level 2 mini-boss)

[General] Enemies can have armor: decreases hit damage by 1, stops all projectiles and deflects bullets

[General] Modified enemy: Added "Teleport Jump" special attack for Shadow

[General] Modified enemy: Ripper Queen has armor

[General] New cannon upgrade (all except water): Penetrative - Armor Piercing projectiles

[General] New cannon upgrade (water only): Perceptive - Targets all enemies

[General] Goblin may come out when breaking hole planks

[VFX] Blood splatters fly more in line with where the attack came from

[GUI] Updated workbench background graphic

[AI] When player interrupts an attack against another target, the enemy will likely stop and target the player instead

[AI] Some friendly spiders may join and help the player in battle stages

[Balance] Projectiles from friendly spiders do not hurt the player anymore

[Balance] All goblins become slightly faster on each hit they take

[Balance] At least every second normal room is a battle stage now

[Balance] Level 1 final battle has only flying enemies

[Balance] Enemy projectile aiming improved against player

[Balance] Longer incoming timer for Vrem and other bosses before entering battle

[Balance] Wishing Well: Decreased the odds for many items

[Balance] Saved Miner: Added more variety to rewards

[Balance] Player invinsibility time decreased after hit by 0.5s

[Balance] Rats do not eat Shadow enemy anymore

[Balance] Modified weapon: Golden Pickaxe default damage is now 3 with additional 2 damage against armored enemies

[Balance] Frost level may have holes that are not covered by ice

[Balance] Dream mode: Vrem health dropped to 75

[Bug] Rippers did not target fire and water cannons

[Bug] No warning prompt regarding respawns when starting a new game on game over screen

[Bug] Glass Cannon projectiles did not cover exact full range

[Bug] Player would sometimes use an action (e.g. pickaxe) when interacting with something

[Bug] Steam screenshots were not working (F12 in game)
Full v. 1.3 changes:

[General] Workbench now has some useful upgrades for cannons

[General] No more respawning battles (battles in already visited rooms)

[AI] Enemies will roam about less

[AI] Spider aim is a bit better towards enemies

[SFX] Reduced the volume level of some of the background sounds

[GUI] Added number of incoming enemies to the "Battle Stage" title card

[GUI] Workbench will show how many cannons are broken and how many upgrades there are without interacting with it

[GUI] Workbench has some graphical updates

[Balance] "Shadow" enemy is unaffected by cannon ammunition

[Balance] Better odds of loot from locked lockers than open lockers

[Balance] Decreased odds of getting extra hearts and perks from wishing well

[Balance] Decreased odds of getting extra hearts from crates

[Balance] Decreased odds of getting a heart from spiders

[Balance] Decreased odds of getting coins from enemies

[Balance] Decreased odds of getting coins and hearts from bats

[Balance] Rats are slightly faster when running to their holes

[Balance] Level 1 starting enemies increased by one (from 2 to 3)

[Perk] Removed "Safe Traveler" perk (no longer needed)

[Perk] Added "Smithy" perk: 15% off from workbench repairs and upgrades

[Bug] Doomed Story: starting perks "Healthy" and "Fast Metabolism" were not applied properly

[Bug] Build mode placement tool could get misaligned when changing from mouse to gamepad control

[Bug] Rat could sometimes run and fall into holes after battle

[Bug] Rat hole is visible on top of opened locker

[Bug] Vrem's top part of the throne had corners that looked like you couldn't build there

[Bug] Perk: "Agile" had a 50% dodge chance (instead of 25%) against enemy projectiles

[Bug] "Cover all holes" feature did not cover holes that were under the currently selected hole cover

[Bug] Enemy projectiles did not hit the large hole fence even if targeted

[Bug] On rare occasion the rock cannon would not shoot at all

[Bug] Sometimes the glass cannon fired at nothing
v. 1.2.1 change:

Achievements and leaderboard was not working, sorry about that!
Full v. 1.2 changes:

[General] Added ability to repair broken cannons on a Workbench

[GUI] Show odds of battle when fast traveling on map

[SFX] Added a new general and pre-battle music track

[AI] Bats will charge away when hit

[Tutorial] Added explanation for Low and High obstacles

[Balance] Player can no longer harm miners with melee attacks

[Balance] Making a wish in well is now disabled during battle

[Balance] Increased the number of enemies in already visited rooms

[Balance] Reduced the chance of battle when traveling to already visited rooms

[Balance] Reduced the amount of rats that appear

[Balance] Reduced the amount of coin from enemies and crates

[Balance] Reduced the amount of gold from rocks and fake exits

[Balance] Reduced the amount of health from enemies and crates

[Balance] Reduced the amount of secret ladders

[Balance] At least every 3rd room is a battle stage now (previously every 4th)

[Balance] Fake exit locations in map adjusted slightly further away

[Balance] Vrem is more aggressive against glass barricades

[Balance] Vrem health dropped from 150 to 100 in Dream mode

[Bug] Incoming enemies max cap (20) did not work in all situations

[Bug] Rats had the potential to give double loot

[Bug] Player may get hurt in the animation phase of moving through a door or ladder

[Bug] Possibility for an enemy to get stuck after knockback to a wall

[Bug] Possibility to have a shop or altar room twice in a row in Dream mode

[Bug] Could trigger level end battle again by going away and coming back

[Bug] Could run tutorial in Dream mode

[Bug] Potential fix for a game crash on "variable melee_sound not set"