Thaumcraft's co-creator MrCauchemar once accidentally created a glitched version of a Vis that ended up corrupting the world.As such, Thaumcraft II was briefly used as a nickname.

Early in Thaumcraft 6's development, Azanor considered significantly altering the mod, and somewhat jokingly referred to it as 'Thaumcraft II' (not be be confused with Thaumcraft 2).The player can browse through the discoveries and click on them to show more detailed information and any crafting recipes associated with those discoveries, plus any addendums they may have discovered. It lists all the discoveries made so far and gives a general impression of how much is left to learn. The Thaumonomicon is a reference book of all things thaumaturgical. After lying down in a bed (does not require sleeping through the night for servers), the player will receive a book titled Strange Dreams, which instructs them to use Salis Mundus on a Bookshelf to acquire the Thaumonomicon.

Once this is done, a message will appear encouraging the player to sleep in a Bed. This can be obtained by mining an Air Crystal, a Fire Crystal, a Water Crystal, an Earth Crystal, an Order Crystal, an Entropy Crystal, or a Flux Crystal. To start Thaumcraft 6, a Thaumonomicon is required. Thaumonomicon Main article: Thaumonomicon (Thaumcraft 6)

The research minigame has been heavily restructured and no longer takes research points from aspects.

The Thaumonomicon has been heavily restructured and no longer takes research points from aspects.Vis spreads slowly to and from neighboring chunks. Vis no longer comes from nodes, but is spread throughout the environment.Wands were removed and replaced with the Caster's Gauntlet and related blocks and items.

Traincraft 1.12.2