Bukkit

1.17.0
    * Requires Bukkit 1.7.2 or higher
    * Removed NBT migration - servers updating from 1.15 or older will need to upgrade to 1.16.0 first
    * Chests are now attached to users by UUID instead of name for Bukkit 1.7 and higher
    * Migration is automatic and irreversible. Back files up before upgrading, just in case.

1.16.0
    * Fixed NBT migration for CB 1.4.7
    * Fixed alphachest.admin to work without alphachest.chest
    * Read and write YAML chest files in UTF-8. This should hopefully fix loading items with special characters in their display name.

1.15.0
    * Switched virtual chest storage from NBT (which was dependent on CraftBukkit and required a new build for every new Minecraft version) to YAML files. Old NBT files will automatically be migrated to the new format (when using CB 1.4.6 only).
    + Added permission "alphachest.chest.creativeMode" to allow players to open virtual chests while being in Creative Mode.
1.14.0
    * Adapted to CraftBukkit 1.4.5 (API changes)
    + Prevent players to open their chest while being in creative mode!
1.13.0
    + Added "dropOnDeath" setting to drop the player's chest on death. Use the new "alphachest.dropOnDeath" permission to set this on a per-user basis. Does not affect players with the "alphachest.keepOnDeath" permission.
    * md-5 changed the plugin to use Bukkits new inventory API. Thanks for the patch!
1.12.0
    + Added "clearOnDeath" setting to clear the player's chest on death. This setting does not affect players with the new "alphachest.keepOnDeath" permission.
    * Fixed a bug that could lead to data loss when converting from old plaintext chest files.
1.11.1
    * Fixed NullPointerException
1.11.0
    * Fixed for CB-1.1-R5/R6.
1.10.0
    * Fix loading the chest's first item slot.
    + Only save changed chests.
    + Added silentAutosave option to suppress log messages while auto-saving chests.
    + Create default config.yml if it doesn't exist.
    * Fix autosave interval to be in minutes, like documented.
1.9.0
    Now uses Bukkit's internal permissions system (SuperPerms). Attention: Renamed permissions from "ac.*" to "alphachest.*"!
    Switched from plaintext to NBT storage. Enchantments are now preserved between restarts.
1.8.0
    Fixes for MC >= beta 1.8
1.7.2
    I failed. Fixed NPE in /craft command.
1.7.1
    Fixed for CraftBukkit API changes (b937)
1.7.0
    Added a virtual workbench!
1.6.4
    Fixed errors in loading/saving chests
    Added auto-saving for chests every 10 minutes
1.6.3
    Fixed NPE in /savechests
    Some cleanup
1.6.2
    First release by kroimon
    Updated to latest CraftBukkit version (b714 / Minecraft 1.5_01)
1.6.1
    Fixed bug saving chests in wrong location
1.6
    Updated to latest CraftBukkit version (b493)
1.5
    Minor bug fix (changed name from "Alpha Chest" to "AlphaChest")
1.4
    Minor bug fixes
    Add support for servers that don't use Permissions
1.3
    Minor bug fixes
1.2
    Added functionality for clearing chests
    Minor bug fixes
1.1
    Fixed item data saving (colored wool)
1.0
    Initial release by Mast4rPlan

If you have been storing items in chests using names other than player names, these chests will no longer be accessible, since they have no UUID. The files will remain unchanged on disk.