Given that the latest Flink version still supports Java 8, and that Flink has not officially announced the drop of Java 8 support, I think it is incorrect to say that "Flink requires at least Java 11 to build".
Because dropping Java 8 support is a backward incompatible change with huge impact, it is probably necessary for Flink to give explicit notice of when Java 8 support will be dropped before actually making this change. Maybe we can follow Kafka website doc <https://kafka.apache.org/documentation/> for example, which says "Java 8, Java 11, and Java 17 are supported. Note that Java 8 support has been deprecated since Apache Kafka 3.0 and will be removed in Apache Kafka 4.0". The Flink doc has been updated to say "Flink requires Java 8 (deprecated) or Java 11 to build" in Flink 1.17.0 branch and the master branch. The reasons are documented in FLINK-30501 <https://issues.apache.org/jira/browse/FLINK-30501>. On Wed, Mar 1, 2023 at 9:22 PM Zhongpu Chen <chenlov...@gmail.com> wrote: > I reported the same question at StackOverflow [1]. As I tested in my > computer, Java 8 is enough to build Flink from source. > > [1] https://stackoverflow.com/questions/75601233/ > > -- > Zhongpu Chen >
