Changes to the core prior to version 1.0 are located in the changelog.txt.
In most cases the version tagging follows the scheme rewrite.feature.bugfix.

cargBags (core)
1.3
* licensed as GPL 3
* fixed background texture of empty bag buttons
* hovering over a bag button can now fade different bag objects
* fixed tooltip-parsing not working correctly
* and now the usual developer-stuff:

- BagBar new property: BagBar.BackgroundTexture - texture path if no icon was found
- new function: object:Fire(callback, ...) - fires a callback with the defined arguments
- new function cargBags.C2I(id) - translates a ContainerID into an InventoryID
- new function cargBags.I2C(id) - translates an InventoryID into a ContainerID
- function changed: cargBags.ParseBags(bagString or bagID or table) - now returns a table every time
- new property: cargBags.BagStrings[] - holds tables of the bagID's for the different bagStrings
- :PreCheckFilters() now also fires on :GetItemInfo()

1.2
* first tooltip-scanning code, if you have wishes for more parsed infos than bindOn,
* please let me know =)

- updated for 3.2
- fixed item.id not working properly
- new item data: item.bindOn - returns "equip", "pickup", "account", "quest", "use" or nil
- 3.2 only: new item data: item.stats - returns a table of all stats of the item (see GetItemStats() for info)
- 3.2 only: new item data: item.sellValue - returns the sellValue in copper of an item
- new plugin: DataBroker - displays a databroker-object, the addon cargoShip is needed for that

1.1 r431
* completely rewritten item-data fetching (should go faster now)
* handlers before version 1.1 are not compatible

- new item data: item.id - returns the item id extracted from the link
- new item data: item.bagType - returns the type of the item's bag
- you can now add your own data to the item-table by adding a function in cargBags.ItemKeys["keyName"]
- new function: object:GetItemInfo(bagID, slotID) - returns the item table for the specified slot
- debug-mode included, see top of core.lua for details

1.0.8 r426
- new property: object.PositionEveryTime - set to true to call UpdateButtonPositions every update
- new pipe function: handler.GetContainerItemLink(bagID, slotID)
- new pipe function: handler.GetContainerItemInfo(bagID, slotID)

1.0.7 r424
- fixed keyring not initializing
- rewritten iterator-function, you can now supplement a table-sort-function in cargBags:IterateBags()
- object's buttons are now available as table-keys in object.Buttons
- fixed a typo when using the bagstring "backpack+bags"
- plugins can now be spawned outside of objects by using cargBags.SpawnPlugin(...)

1.0.6 r413
- fixed the button.bagID-errors

1.0.5 r410
- fixed problem with hidden bags
- fixed plugins not updating on login
- lots of comments in the files added
- fixed bagType not being stored in cargBags.Bags[bagID]

1.0.4 r402
- pass arguments to Update-callbacks
- timed events to reduce updating
- new callback function: cargBags:PreCheckFilters(item, updateType)

1.0.3 r398
- silent mode for setting active handler and style (set #arg2 to 'true'), returns true on success
- update bags only after init
- new callback function: object:PreUpdateBags() - fired before an object is updated
- new callback function: object:PostUpdateBags() - fired after an object is updated

1.0.2 r387
- space indicator can now fetch information of defined bags (like BagBar)
- new function cargBags:ParseBags(bags) - returns id's of bag-strings like "bags" or "bank"
- some changes on showing/hiding buttons (hopefully fixes the appearing of unused buttons)
- style-arguments changed: style(settings, self, name, ...)

1.0.1 r383
* updated .toc for patch 3.1
* removed property: cargBags.FreezeButtons - don't think it's really needed
* fixed cooldowns not updating on item move
* new callback function: object:PostCreateBag(bag, bagID) - fired after a bag was created in the object

1.0
* COMPLETE REWRITE
* your old layout won't work with this new version without major changes!
* be aware that most previous callback functions for the layout are removed / modified due to the changes
- cargBags now supports filters for item-based placing!
- unused buttons are now recycled to save memory and cpu time
- item quality glow removed, it is now handled by the layout
- additional elements are now spawned with the new plugin system
- see object:RegisterPlugin(name, func)
- and object:SpawnPlugin(name, ...)
- new callback function: object: object:UpdateButton(button, item)
- new callback function: object: object:UpdateButtonLock(button, item)
- new callback function: object: object:UpdateButtonCooldown(button, item)

Okay, well, to be honest, the only reason I still play WoW is because of addon development. The rest became boring after four years of active playing =P
And since I write them in my free time and also release them for free, there are of course the subscription fee's ... so if you want to support me, here's your chance!

And ... umm ... there's still the habit of eating lots of chocolate while thinking of addons :/