The ORC team is excited to announce the release of ORC v1.9.6.

• Released: 6 May 2025
• Source code: orc-1.9.6.tar.gz
• GPG Signature signed by Gang Wu (8A461DF4)
• Git tag: rel/release-1.9.6
• Maven Central: ORC 1.9.6
• SHA 256: 4442944f53b6b4d4…
• Fixed issues: ORC-1.9.6

The bug fixes:

• ORC-1866 Avoid zlib decompression infinite loop
• ORC-1879 Fix Heap Buffer Overflow in LZO Decompression
• ORC-1885 Update all ubuntu-20.04 to ubuntu-22.04 in CI

The test changes:

• ORC-1745 Remove Ubuntu 20.04 Support
• ORC-1776 Remove MacOS 12 from GitHub Action CI and docs
• ORC-1818 Upgrade Spark to 3.5.4 in bench module
• ORC-1869 Upgrade Spark to 3.5.5 in bench module for Apache ORC 1.9.x

The tasks:

• ORC-1709 Upgrade GitHub Action setup-java to v4 and use built-in cache feature