Since there were a few moderately serious bugs fixed (regressions from 0.3.0) in the last couple weeks, we are going to cut a bugfix release candidate 0.4.1 based on the master branch later today unless we hear objections otherwise.
See JIRAs resolved https://issues.apache.org/jira/issues/?filter=12334829&jql=project%20%3D%20ARROW%20AND%20status%20%3D%20Resolved%20AND%20fixVersion%20%3D%200.4.1 There have not been any new features, API changes, nor changes to the metadata or wire formats. One minor issue is that users of pyarrow that are also using Apache Parquet will need to build against the master branch of Parquet. We can either release parquet-cpp 1.1.1 or wait for 1.2.0 concurrent with Arrow 0.5.0 as the community prefers. Thanks Wes
