In this maintenance...

All remaining guild type shops are now functional
An issue where some items in the guild window would appear out of order has been resolved
All NPC stores have correct stock and pricing for every level of fame, except Dabih Jajalioh
Most items sellable to an NPC now have an era-accurate price offered for every level of fame
Item use has undergone an end-to-end rewrite.
Items capable of warping a player to any location will now function correctly.
Usable items added later than 2009 will no longer function.
A drop rate issue on the raptor NMs Yowie and Lindwurm has been corrected
Logic surronding purchase, recharge, and use of exp rings has been sharpened
Signet staves will now function as they did in the COP era
Previously unresponsive mog house moogles are now responsive
Fixed an issue where, in some cases, the player could not see how they died
Various improvements to the Chigoe family
All ways to obtain the status effects of sneak/invisible/deodorize have been made more accurate
The flow of information between the server and the client has been sharpened in several minor ways
The enmity system has been made more retail accurate in several ways. This should improve stability
The Gauge ability animation has been corrected
A bug preventing the completion of Promyvion Mea has been fixed
An issue where mobs would prefer standing back to cast in situations where they should not has been corrected.
Mob pet logic surrounding roaming, linking, and summoning has been sharpened
Attack rounds of weapons that occasionally attack more than once have had their emulation sharpened
A source of instability revolving around charmed players has been resolved
Luminant, mimeo stone, and miasma mechanics in Attohwa Chasm have been made retail accurate
The range of the various drg "jump" abilities has been corrected