The ORC team is excited to announce the release of ORC v2.1.2.

• Released: 6 May 2025
• Source code: orc-2.1.2.tar.gz
• GPG Signature signed by Dongjoon Hyun (34F0FC5C)
• Git tag: rel/release-2.1.2
• Maven Central: ORC 2.1.2
• SHA 256: 55451e65dea6ed42…
• Fixed issues: ORC-2.1.2

The bug fixes:

• ORC-1866 Avoid zlib decompression infinite loop
• ORC-1879 [C++] Fix Heap Buffer Overflow in LZO Decompression
• ORC-1881 [C++] Populate dstBatch’s scale and precision in DecimalConvertColumnReader

The test changes:

• ORC-1871 [C++] Include iomanip at TestDictionaryEncoding and TestConvertColumnReader
• ORC-1872 Upgrade extra-enforcer-rules to 1.10.0
• ORC-1875 Support ubuntu-24.04-arm in GitHub Action CIs

The build and dependency changes:

• ORC-1876 Upgrade to ORC Format 1.1