Hi all, Impala-3.4.0 was released in April 2020. It has been a long time since the last release. One reason is that this is a major version release so we hope it can take all the necessary breaking changes [1]. Listing all the unresolved breaking changes here (I may miss some):
- IMPALA-2210: Make Parquet the default file format - IMPALA-9690: Bump minimum x86-64 CPU requirements - IMPALA-7127: Use the fetch-on-demand metadata (LocalCatalog) mode by default - I think this one is not visible to end users so maybe we can skip it. However, we've got lots of amazing features/improvements, e.g. - Multi-threading - New SQL features to support all TPC-DS 99 queries (without manually rewriting) - Transparent query retry - Read support on full ACID ORC tables - Apache DataSketches integration - Apache Iceberg integration - arm64 support - ... I think it's time to release 4.0.0 to make them visible to our users. It'd be good if the breaking changes discussed in this thread [1] can land soon. Otherwise, I propose leaving them to the next major version release. Thus, I propose that we release 4.0.0 soon and I volunteer to be its release manager. Please speak up and let the community know your ideas, especially on the breaking changes. All feedback is welcome! PS This is not a VOTE thread but only a DISCUSS thread. Thanks, Quanlong [1] https://lists.apache.org/thread.html/r91b070c2ddfbdc00b316791611b23816991c68fb0afefd1e18c21c26%40%3Cuser.impala.apache.org%3E
