Improved Left/Outer Stream-Stream Join (v3.0.x and newer)
Anchor
spurious
spurious
Warning
Prior to version 3.0.x Kafka Streams might emit so called "spurious" left/outer join result. In this section we only explain the different new behavior that avoids spurious left/outer stream-stream join results. See New Join Semantics below that describe all joins in more details, including spurious left/output join behavior in versions 0.10.2.x to 2.8.x.