added

- functions
require

string.unpack
string.packsize
string.pack

math.tointeger
math.ult
math.type

coroutine.isyieldable

table.move

sb.interpolateSinEase
sb.print
sb.printJson
sb.nrand
sb.logInfo (CHANGED FROM root.logInfo)
sb.makeUuid (CHANGED FROM root.makeUuid)

root.tenantConfig
root.getMatchingTenants
root.assetJson
root.behaviorModule
root.generateName
root.createItem

world.isTileProtected
world.forceDestroyLiquid
world.entityUniqueId (CHANGED FROM world.entityUuid)
world.objectSpaces
world.loadUniqueEntity
world.polyContains
world.setUniqueId
world.findUniqueEntity
world.spawnTreasure
world.spawnStagehand
world.stagehandType
world.platformerPathStart
world.findPlatformerPath
world.xwrap
world.threatLevel
world.sendEntityMessage
world.entityMoney
world.regionLoaded

entity.sayPortrait
entity.spaces
entity.partPoly
entity.partPoint
entity.getOutboundNodeLevel
entity.transformedPosition
entity.setUniqueId
entity.uniqueId

item.hasQuestTag (CHANGED FROM item.hasQuestTriggerKey)

status.inflictedDamageSince
status.damageTakenSince

tech.partPoly
tech.transformedPosition
tech.partPoint
tech.parentLounging

animator.partPoly
animator.transformedPosition
animator.partPoint

mcontroller.autoClearControls
mcontroller.clearControls
mcontroller.setAutoClearControls

utf8.offset
utf8.char
utf8.codes
utf8.codepoint
utf8.len

message.setHandler
-

- constants
_VERSION == Lua 5.3 (ORIGINALLY Lua 5.2)
_SBLOADED["filepath"] == true (starbound's require equivalent of _LOADED)

math.maxinteger == 9,223,372,036,854,775,807
math.huge == inf (ORIGINALLY 1.#INF)
math.mininteger == -9,223,372,036,854,775,808

utf8.charpattern == "["
-


removed (or changed)

- functions
unpack

math.atan2
math.pow
math.log10
math.frexp
math.ldexp
math.sinh
math.cosh
math.tanh

table.maxn

bit32.extract
bit32.btest
bit32.bor
bit32.bnot
bit32.rshift
bit32.bxor
bit32.lshift
bit32.lrotate
bit32.rrotate
bit32.replace
bit32.band
bit32.arshift

root.logInfo (CHANGED)
root.makeUuid (CHANGED)

world.entityUuid (CHANGED)

entity.appliedOffset
entity.anchorPoint
entity.setAimPosition
entity.setItemSlot
entity.endPrimaryFire
entity.endAltFire
entity.beginPrimaryFire
entity.beginAltFire
entity.isLounging
entity.resetLounging
entity.energy
entity.setShifting
entity.disableWornArmor
entity.setLounging
entity.aimPosition
entity.getItemSlot
entity.species
entity.emote
entity.maxEnergy

item.hasQuestTriggerKey (CHANGED)

tech.appliedOffset
tech.anchorPoint

animator.appliedOffset
animator.anchorPoint
-

- constants
_VERSION == Lua 5.2 (CHANGED)

math.huge == 1.#INF (CHANGED)
-

and lots of other changes to the libraries in the scripts folder