Release 2026-05-06

OS4X Release 2026-05-06 can be downloaded online from the website www.os4x.com/downloads, the OS4Xvirtual images and the Docker containers are updated.

Current changes are:

  • OS4X REST-API:
    • New: OS4X now integrates a new REST API, whose interactive online documentation, accessible directly from your web browser, can be found under the menu item „Support“ -> „API documentation“. This API is continuously being expanded, and we welcome your requirements! Together with web events, OS4X thus offers a great foundation for modern integration possibilities!
  • OS4X Core:
    • New:To ensure compliance with the latest Odette specifications, OFTP2 ciphers can now be explicitly defined per partner for Secure Authentication. OS4X is the first company to have already received certification from Odette.
    • New: OFTP2 Secure Authentication is no longer dependent on command-line calls, but is natively implemented in OS4X using library calls. A „legacy mode“ is available.
    • New: OS4X now offers Fail2Ban integration to defend against network attacks.
    • Improved: When inserting ODETTE_CERTIFICATE_DELIVER and ODETTE_CERTIFICATE_REPLACE, these actions are performed directly via the database instead of via the binary, which saves a lot of time during mass rollouts.
    • Improved: Network scans from onhyphe.net are detected and no longer logged.
    • Improved: After successful automatic certificate reception, the corresponding file is deleted.
    • Improved: In boost mode, OS4X now sends files without a 500ms delay. The receiving system and its underlying database must be sufficiently scaled to handle the load.
  • OS4X AS2:
    • Improved: HTTP header variables are now processed in a case-insensitive manner.
    • Improved: Improved support for compressed request responses.

As the latest version of OS4X available, we recommend to update to this version as fast as possible.