The ORC team is excited to announce the release of ORC v1.5.5.

• Released: 14 March 2019
• Source code: orc-1.5.5.tar.gz
• GPG Signature signed by Owen O’Malley (3D0C92B9)
• Git tag: rel/release-1.5.5
• Maven Central: ORC 1.5.5
• SHA 256: 486bbf0765a5b8c2…
• Fixed issues: ORC-1.5.5

The new features of ORC 1.5:

• ORC-179 Add ORC C++ Writer
• ORC-91 Support for variable length blocks in HDFS.
• ORC-199 Implement a CSV to ORC converter
• ORC-344 Support for using Decimal64ColumnVector
• ORC-345 Adding Decimal64StatisticsImpl
• ORC-331 Support for building C++ under MSVC.
• ORC-234 Support for older versions of Hadoop (>= 2.2.x)
• ORC-305 Added statistics for size on disk

Known issues:

• ORC-414 ORC files with malformed protobuf objects can crash C++ reader

• ORC-562 Don’t wrap the readerSchema with ACID fields, if it already is

• ORC-569 The first index entry may have empty positions