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+# Sonic Adventure 2 Battle - Changelog
+
+
+## v2.3 - The Chao Update
+
+### Features:
+
+- New goal
+	- Chaos Chao
+		- Raise a Chaos Chao to win!
+- New optional Location Checks
+	- Chao Animal Parts
+		- Each body part from each type of animal is a location
+	- Chao Stats
+		- 0-99 levels of each of the 7 Chao stats can be locations
+		- The frequency of Chao Stat locations can be set (every level, every 2nd level, etc)
+	- Kindergartensanity
+		- Classroom lessons are locations
+		- Either all lessons or any one of each category can be set as locations
+	- Shopsanity
+		- A specified number of locations can be placed in the Chao Black Market
+		- These locations are unlocked by acquiring Chao Coins
+		- Ring costs for these items can be adjusted
+	- Chao Karate can now be set to one location per fight, instead of one per tournament
+- New Items
+	- If any Chao locations are active, the following will be in the item pool:
+		- Chao Eggs
+		- Garden Seeds
+		- Garden Fruit
+		- Chao Hats
+		- Chaos Drives
+	- New Trap
+		- Reverse Trap
+- The starting eggs in the garden can be a random color
+- Chao World entrances can be shuffled
+- Chao are given default names
+
+### Quality of Life:
+
+- Chao Save Data is now separate per-slot in addition to per-seed
+	- This allows a single player to have multiple slots in the same seed, each having separate Chao progress
+- Chao Race/Karate progress is now displayed on Stage Select (when hovering over Chao World)
+- All Chao can now enter the Hero and Dark races
+- Chao Karate difficulty can be set separately from Chao Race difficulty
+- Chao Aging can be sped up at will, up to 15×
+- New mod config option to fine-tune Chao Stat multiplication
+	- Note: This does not mix well with the Mod Manager "Chao Stat Multiplier" code
+- Pong Traps can now activate in Chao World
+- Maximum range for possible number of Emblems is now 1000
+- General APWorld cleanup and optimization
+- Option access has moved to the new options system
+- An item group now exists for trap items
+
+### Bug Fixes:
+
+- Dry Lagoon now has all 11 Animals
+- `Eternal Engine - 2` (Standard and Hard Logic) now requires only `Tails - Booster`
+- `Lost Colony - 2` (Hard Logic) now requires no upgrades
+- `Lost Colony - Animal 9` (Hard Logic) now requires either `Eggman - Jet Engine` or `Eggman - Large Cannon`
+
+
+## v2.2
+
+### Features:
+
+- New goals
+	- Boss Rush
+		- Complete the Boss Rush to win!
+	- Cannon's Core Boss Rush
+		- Beat Cannon's Core, then complete the Boss Rush
+	- Boss Rush Chaos Emerald Hunt
+		- Collect the seven Chaos Emeralds, then complete the Boss Rush
+- Boss Rush Shuffle option
+- New optional Location Checks
+	- Animalsanity
+		- Collect numbers of animals per stage
+- Ring Link option
+	- Any ring amounts gained and lost by a linked player will be instantly shared with all other active linked players
+- Voice line shuffle
+	- None
+	- Shuffled
+	- Rude
+	- Chao
+	- Singularity
+- New Traps
+	- Ice Trap
+	- Slow Trap
+	- Cutscene Trap
+
+### Quality of Life:
+
+- Maximum possible number of Emblems in item pool is now a player-facing option, in the range of 50-500
+- A cause is now included for sent DeathLinks
+- Death Cause messages are now displayed in-game
+- WSS connections are now supported
+
+### Bug Fixes:
+
+- Two rare softlock scenarios related to the Chaos Control Trap should no longer occur
+- Tracking of location checks while disconnected from the server should be more consistent
+- DeathLinks can now be sent and received between two players connected to the same slot
+- 2P mode should no longer be accessible
+- Boss Stages no longer display erroneous location tracking icons
+- Boss Stages are no longer subject to mission shuffle oddities
+- Fix Logic Errors
+	- Eternal Engine - Pipe 1 (Standard and Hard Logic) now requires no upgrades
+	- Egg Quarters - 5 (Standard Logic) now requires Rouge - Iron Boots
+	
+	
+## v2.1
+
+### Features:
+
+- New goal
+	- Grand Prix
+		- Complete all of the Kart Races to win!
+- New optional Location Checks
+	- Omosanity (Activating Omochao)
+	- Kart Race Mode
+- Ring Loss option
+	- Classic - lose all rings on hit
+	- Modern - lose 20 rings on hit
+	- OHKO - instantly die on hit, regardless of ring count (shields still protect you)
+- New Trap
+	- Pong Trap
+
+### Quality of Life:
+
+- SA2B is now distributed as an `.apworld`
+- Maximum possible number of Emblems in item pool is increased from 180 to 250
+- An indicator now shows on the Stage Select screen when Cannon's Core is available
+- Certain traps (Exposition and Pong) are now possible to receive on Route 101 and Route 280
+- Certain traps (Confusion, Chaos Control, Exposition and Pong) are now possible to receive on FinalHazard
+
+### Bug Fixes:
+
+- Actually swap Intermediate and Expert Chao Races correctly
+- Don't always grant double score for killing Gold Beetles anymore
+- Ensure upgrades are applied properly, even when received while dying
+- Fix the Message Queue getting disordered when receiving many messages in quick succession
+- Fix Logic errors
+	- `City Escape - 3` (Hard Logic) now requires no upgrades
+	- `Mission Street - Pipe 2` (Hard Logic) now requires no upgrades
+	- `Crazy Gadget - Pipe 3` (Hard Logic) now requires no upgrades
+	- `Egg Quarters - 3` (Hard Logic) now requires only `Rouge - Mystic Melody`
+	- `Mad Space - 5` (Hard Logic) now requires no upgrades
+	
+	
+## v2.0
+
+### Features:
+
+- Completely reworked mission progression system
+	- Control of which mission types can be active per-gameplay-style
+	- Control of how many missions are active per-gameplay-style
+	- Mission order shuffle
+- Two new Chaos Emerald Hunt goals
+	- Chaos Emerald Hunt involves finding the seven Chaos Emeralds and beating Green Hill
+	- FinalHazard Chaos Emerald Hunt is the same, but with the FinalHazard fight at the end of Green Hill
+- New optional Location Checks
+	- Keysanity (Chao Containers)
+	- Whistlesanity (Animal Pipes and hidden whistle spots)
+	- Beetlesanity (Destroying Gold Beetles)
+- Option to require clearing all active Cannon's Core Missions for access to the Biolizard fight in Biolizard goal
+- Hard Logic option
+- More Music Options
+	- Option to use SADX music
+	- New Singularity music shuffle option
+- Option to choose the Narrator theme
+- New Traps
+	- Tiny Trap is now permanent within a level
+	- Gravity Trap
+	- Exposition Trap
+
+### Quality of Life:
+
+- Significant revamp to Stage Select screen information conveyance
+	- Icons are displayed for:
+		- Relevant character's upgrades
+		- Which location checks are active/checked
+		- Chaos Emeralds found (if relevant)
+		- Gate and Cannon's Core emblem costs
+	- The above stage-specific info can also be viewed when paused in-level
+		- The current mission is also displayed when paused
+- Emblem Symbol on Mission Select subscreen now only displays if a high enough rank has been gotten on that mission to send the location check
+- Hints including SA2B locations will now specify which Gate that level is located in
+- Save file now stores slot name to help prevent false location checks in the case of one player having multiple SA2B slots in the same seed
+- Chao Intermediate and Expert race sets are now swapped, per player feedback
+	- Intermediate now includes Beginner + Challenge + Hero + Dark
+	- Expert now includes Beginner + Challenge + Hero + Dark + Jewel
+- New mod config option for the color of the Message Queue text
+
+### Bug Fixes:
+
+- Fixed bug where game stops properly tracking items after 127 have been received.
+- Several logic fixes
+- Game now refers to `Knuckles - Shovel Claws` correctly
+- Minor AP World code cleanup
+
+
+## v1.1
+
+### Features:
+
+- Unlocking each gate of levels requires beating a random boss
+- Chao Races and Karate are now available as an option for checks
+- Junk items can now be put into the itempool
+	- Five Rings
+	- Ten Rings
+	- Twenty Rings
+	- Extra Life
+	- Shield
+	- Magnetic Shield
+	- Invincibility
+- Traps can now be put into the itempool
+	- Omotrap
+	- Chaos Control Trap
+	- Confusion Trap
+	- Tiny Trap
+- The Credits now display a few stats about the run
+- An Option for the minimum required rank for mission checks is now available
+- An Option for influencing the costs of level gates is now available
+
+### Bug Fixes:
+
+- A message will display if the game loses connection to Archipelago
+- The game will gracefully reconnect to Archipelago
+- Kart Race mode is now properly hidden
+- Minor logic fixes
+
+
+## v1.0 - First Stable Release
+
+### Features:
+
+- Goal is to beat Cannon's Core and defeat the Biolizard
+- Locations included:
+	- Upgrade Pickups
+	- Mission Clears
+- Items included:
+	- Character Upgrades
+	- Emblems
+- Levels are unlocked by certain amounts of emblems
+	- An option exists to specify how many missions to include
+- Cannon's Core is unlocked by a certain percentage of existent emblems, depending on an option
+- Music Shuffle is supported
+- DeathLink is supported