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P6X release notes

This section contains release notes for P6X terminals.

2026 releases​

2025 releases​

  • PTOS 2.16.52: quicker NTP time checks, so transactions carry the correct time after a reboot
  • PTOS 2.16.51: ECDHE cryptography for EMS Datawire, faster PSP DOLs, and Credential on File for the NMI host

2024 releases​

  • PTOS 2.16.48: modem performance improvements and an MDB DEX data fix
  • PTOS 2.16.38: extra data in PSP result codes, and DDCMP support
  • PTOS 2.16.34: better PSP memory efficiency and RTP communication fixes
  • PTOS 2.16.31: NMI host retries, the PSP List Session command, and DEX-VDI for MDB

2023 releases​

  • PTOS 2.16.19: Acquirer Data and Gateway Data TLV tags, and Price Index for Autopay
  • PTOS 2.16.14: NMI host improvements, a configurable Ethernet MTU, and ECDHE key exchange for TLS

2022 releases​

  • PTOS 2.16.04: RC7620 modem support and the Payplaza 9F0A tag

Release policy​

P6X terminals run the Payter Terminal Operating System, PTOS, which controls every payment and configuration function. Because P6X is a mature product, we update PTOS less often than our other products. Each release usually fixes one specific issue.

This section lists the significant releases only. If your terminals run a version between two listed releases, the next newer release note covers its changes.

To keep your terminals secure and supported, update any terminal that runs a PTOS version earlier than 2.16 as soon as possible. For help with the update, contact integration@payter.nl.

Release note format​

We number PTOS versions as major.minor.release. For example, 2.16.57 is major version 2, minor version 16, release 57. Each release note page covers one year, with a section for each release.

Documentation Version 1.0.34