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Bouncy Castle Releases Java 1.81 and C# .NET 2.6.1

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Keyfactor Release

2025-06-09

We have just released Bouncy Castle Java 1.81 and Bouncy Castle .NET C# 2.6.1, packed with updates you have been waiting for:

  • Standardized PQC key formats (ML-KEM, ML-DSA, SLH-DSA) for full OpenSSL 3.5+ interoperability
  • CMS support for stateless PQC signatures
  • TLS with ML-KEM and hybrid cipher suites in BCJSSE
  • Latest Ascon updates for IoT-ready lightweight crypto
  • HQC KEM update in Bouncy Castle C# .NET for crypto-agility

You can read the full announcement here.
Go to Release Update

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