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The next crucial step were the Interoperability Events (11 & 25 June 2024). These remote sessions brought together solution providers with their proof-of-concept implementations based on the cryptography part of the latest draft specifications. Participants had the opportunity to test their implementations against each other to detect lingering interoperability issues stemming from the new eDelivery AS4 specifications. We are looking forward to the 3rd session on 1 October.

Formal publication of the new specifications is expected in the second half of 2024. While some early adopters might be ready by 2025, a more realistic timeframe for widespread product support for the new specifications is likely to be 2026 onwards. The European Commission's Domibus is tentatively slated for an update supporting the new specifications by the end of 2025.

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