2026 P6X Releases

2.16.57

Release date: October 14, 2026

Issues Resolved

• Changed the default value of field e in the SPDH message to the EMS host, for all transaction types except pre-authorization and payment.

2.16.56

Release date: September 24, 2026

Issues Resolved

• Fixed an issue that could make EMS host connections take up to 10 seconds for customers who use the Payter transaction host.

2.16.55

Release date: August 24, 2026

Issues Resolved

• Updates the Transport Layer Security version for the NMI host.

Mandatory Update

This update will be required for all LIVE terminals using the NMI (CreditCall) host at a future date (TBC). Consider updating NOW to avoid any issues when this becomes mandatory.

2.16.54

Release date: July 31, 2026

Issues Resolved

• Fixed an issue where a terminal could reboot when processing significant transaction volumes with the EMS host.

2.16.53

Release date: June 29, 2026

Enhancements

• Extended support for ECDHE cipher suites on CCV connections. This improves TLS compatibility, resolves weak-cipher findings, and meets TLS 1.2 connection requirements.