v10.2.3
Fixed some bug fixes that caused the game freezing, and added a whole new sex scene
v10.1.1
Fixed bugs relating to Alex sprite appearance (not having the correct outfit displayed, etc)
Fixed bugs in Character View (not displaying the correct image in status menu, etc.)
Fixed issue with duplicates showing up in inventory
Fixed issue with bouncer not letting you into nightclub
Enchantments can now be detached
Gems and enchants can now be applied to equipment without removing it first (in the item menu, you'll see a character's name next to equipment if it's currently worn. Use that.)
Talent Show scene will no longer play if you're going for a "virgin route" (though you can still unlock it later in the recollection room if you did everything else to get it.)
Shield Wall no longer halves healing received (this is a very old bug I somehow missed)
Fixed issue with Cute Pajamas sprite not showing up in xmog interface
v10.0.3
N/A

v0.9.8
2 new H-scenes
7-ish quests, depending on how you count
1 (small) dungeon
2 boss fights
1 minigame
New district
Several new skits
An autosave feature
A vast number of fixed bugs
Improved game performance (hopefully)
Approximate new content playtime: 5-7 hours
v0.9.2
"0.9.1 introduced a bug that prevented pre-0.9 saves from being able to load, and this release fixes that"

v0.9
Playable content:
2 new H-scenes
7-ish quests, depending on how you count
1 (small) dungeon
2 boss fights
1 minigame
New district
Several new skits
Art:
60 new images (31 H-scene images, 29 character view images)
Many new portraits
Features and misc:
New party member
Added lighting effects
Added game character view feature (press 'i' to toggle. Warning: This feature is a little wonky!)
Added menu character view feature (on the Status menu)
Xmog feature (he's on the 2nd floor of the Sorcerer's Society)
Battle action sequences
New animations
New ability for Ana
New equipment slots
Default items for new slots (old saves should be fixed automatically)
New boots for completing Celie's quest (chickens vs. frogs, awarded retroactively)
Changed the way TP behaves for many characters
Removed lots of exclamation points!!
Got rid of level indicators
Improved conveyance for cookie quest (there should be fewer 'WTF am I supposed to do?' moments.)
Probably lots of stuff I missed

v0.8
6 new areas with 31+ new maps
7 new quests
2 new minigames
Ana texture revamp
1 new H-scene with 29 images
Many new characters and skits
Difficulty revamp for The Dark Pits
Added Karathian Alarm Clock to help with getting nighttime H-scenes
Bugfixes, other minor changes

v0.7.1
Added small quest to familiarize player with easy modes
Revised easy mode for The Dark Pits dungeon
Added a map to the '10 bomb room' (AKA bomb puzzle room)
Fixed a number of issues with the hospital minigame
Various other fixes
As you can see, this update mostly deals with easy modes. I'll talk more about why I felt that was needed - and about 0.7 generally - in my post this Sunday or so. Here's what's different in Dark Pits easy mode:
The boss fight is only the first phase (and his HP has been adjusted accordingly)
Easy mode skips the waterfall level and most of the long stream level
Bombs should actually deal reduced damage (I don't think they did before >_< )
The new quest is pretty short; I just added it so there's some game mechanism that unambiguously lets players know that easy modes exist. You'll find the quest giver in Ogremarsh any time after you start the recruitment quest for the Bunnies.

v0.6.1
Resolved issue that could result in player being stuck shortly after meeting the Bunnies by the dungeon
Made Human Registration Card equippable (by Ana)
Resolved issue that could cause unexpected Game Over after miniboss
Party members should no longer leave unexpectedly in Jovi's imp quest area
Glowfrog and Jovi's imp quests should behave more sensibly
Hospital behaves as expected when re-entering after completing quest
(Maybe?) Resolved issue that could cause post-hospital event to behave unexpectedly
Fixed bugs in the party changing sequence outside of dungeon
Changed the way saves are handled on macOS

v0.6
The very beginning of a new dungeon (more about that below)
2 new multi-part H-scenes
Bunnies now have conversation portraits (including 0.5.x conversations)
Introduced the recollection room, which lets you see H-scenes you’ve previously unlocked
New enemy art and aesthetic (and some animated ones)
New healing minigame
New abilities for Alex and Ana
New combat classes and abilities
A hidden repeatable boss! (How many times can you beat him?)
Introduced a credits page
New buildings and areas
Lots more skits and dialogue

v0.5.2
2 new H-scenes, one of which has 2 distinct variations
5 new quests
New skits
A (hopefully!) fun event at the end!
A bunch of new characters
Lots of new dialogue
2 new areas and 2 new building interiors

v0.5.1
This hotfix is intended to address a game-crashing bug that occurs during one of the optional quests.

v0.5
2 new H-scenes, one of which has 2 distinct variations
5 new quests
New skits
A (hopefully!) fun event at the end!
A bunch of new characters
Lots of new dialogue
2 new areas and 2 new building interiors