The ORC team is excited to announce the release of ORC v1.9.9.

• Released: 8 July 2026
• Source code: orc-1.9.9.tar.gz
• GPG Signature signed by Dongjoon Hyun (34F0FC5C)
• Git tag: rel/release-1.9.9
• Maven Central: ORC 1.9.9
• SHA 256: 0fe8c341543d72b6…
• Fixed issues: ORC-1.9.9

The bug fixes:

• ORC-2177: ORC-2177: Fix array conversion with empty first batch
• Fix Integer Overflow in Seekable(Array|File)InputStream::Skip

The tasks:

• ORC-2189 Add URL_HASH to all third-party dependencies in ThirdpartyToolchain.cmake