Tinkerer

Patch 1.3.0

 * :  now only affects modifiers positively.
 * : decreased the bonus applied to modifiers to // %.
 * : 's bonus is now additive.

Patch 2.1.0

 * Mechanics Change: ' now gives the Killer a noise notification if a Generator is repaired to ' and also reduces their Terror Radius to  for // seconds.

Patch 3.4.0

 * Updated ' with the  Status Effect'.

Patch 4.1.0

 * : lowered the activation threshold to .
 * : increased the Undetectable duration.

Rework details
 required an immense workload of additional coding each time new Add-ons were created, since the Developers had to work with a static buff and keep in mind that Add-ons without it shouldn't be too weak and those with it shouldn't be too strong.

They compared that workload to creating a second set of Unique Perks for any new Killer, something they were no longer willing to do and thus intended for  to be reworked eventually, which happened with Patch 2.1.0.

Add-on support issue
The old ' did ' officially support any new Add-ons released after CHAPTER IV.

However, due to intertwined code, it unintentionally somewhat supported the wind-up Add-ons for the (CHAPTER V) and the  (CHAPTER VIII).

Trivia

 * Until its rework,  was effectively without use on several Killers.
 * The Noise notification may trigger multiple times on the same Generator if it regresses back below the trigger-threshold and is repaired back up to it.
 * 's old flavour text still addressed The Hillbilly by his Alpha name "The Crooked", rather than by his current name:

Old Tinkerer (pre 2.1.0)
Tüftler Reparador Mastro Ferraio