Driftwatch

Datadog / Datadog API v2 /

Breakingdirection flip: their tools call this safe

value can now return "univiz"

What changed

Producer-side tools call this additive. It breaks exhaustive switches, strict parsers and generated client enums.

Affects this value on LLMObsContentBlockType reachable from 4 operations.

New value: univiz.

can now return "univiz"

Who is affected

Code that reads Datadog's LLMObsContentBlockType objects, used by 4 Datadog operations.

Before and after

WhereBeforeAfter
LLMObsContentBlockType"frontend", "header", "image", "json", "llmobs_trace", "markdown", "text", "widget""frontend", "header", "image", "json", "llmobs_trace", "markdown", "text", "univiz"

Code that breaks

switch (response) {
  // existing branches …
  // no branch for "univiz"
  default:
    throw new Error("unexpected value");
}

Based on Datadog’s published API specification. How severity is decided.