ksqlDB 0.10.0: New Java Client, Easy Kafka Data Processing, and More

What this post added

This post introduces the ksqlDB 0.10.0 release, highlighting the addition of a first-class Java client that supports pull and push queries, and row insertion. It also details enhancements to Kafka key support, allowing any column name for keys and removing the `WITH KEY` syntax. The release mandates explicit primary keys for tables and creates keyless streams when none are declared. New built-in functions for string manipulation, regex, array, and map operations are also introduced.