Inside of the automotive industry software development process, each used tool must have a ISO26262 Software tools Classification & Qualification .

For this the vendor must define the Classification & Qualification level for its tool.

The ISO 26262 - an automotive specific functional safety standard for road vehicles
ISO 26262 is an adaptation of the generic Functional Safety standard IEC 61508 for Electric/Electronic Systems
It aims to address possible hazards caused by the malfunctioning behavior of E/E system

ISO 26262, part 8, chapter 11 provides the framework to evaluate the software tools in order to create evidence that the tool is suitable to use in the development of safety system.
  Can you provide the TCL (Tool classification level)  for Bitbucket server?