Index

Release date: January 9, 2026

Features

Adds support for Administrative Acquirer Initialization (ACQI) and Terminal Configuration (TCFG) requests.
Adds support for the "DocumentQualifier" and "MessageDestination" fields in Nexo Responses in JSON tags format (e.g., "CustomerReceipt" instead of "CRCP").

Bug fixes

CreationDateTime header now reflects the time the response was created, not the time the initial request was sent.
Fixes OriginalPaymentTransaction.TransactionType being "Error" in the Reversal Responses.
Makes the font size in the EV screens resizable to adapt to the default system font size.

Updates

Release date: September 16, 2025

Features

Enables the clients to open customizable screens meant for EV Charger use cases. More information here [TBA].
Adds support for cancelling a Reservation (Pre Authorization).
Adds the missing ApplicationIdentifier field to the Nexo Card model, enhancing payment transaction tracking capabilities.

Bug fixes

On S1U2 terminals, opening the menu with the physical button or emulator Menu button no longer loops back to idle; the menu now stays open until you close it.
Credentials no longer disappear after reboot by preserving UMID and UTID across restarts.
Adds flexible currency support to the amount screen; optional currency field (up to 4 characters, € / EUR), and hides currency in the response input to ensure correct amounts across EU currencies.
Fixes WebhookUrl and NumberOfRetries missing from the rejection response headers.
Adds support for Nexo JSON tags for the EV Charging feature.
Fixes UI related requests not following the Nexo Specification regarding the placement of the fields.

Updates

Switches from Nexo Retailer abbreviations to the full code names for better readability in our APIs (e.g., SFSQ to SaleFinancialServiceRequest). For more information, check out our migration plan guide .

Features

Updates

Adds support for CardDataEntryMode = PHYS for purchase requests; maps to WPI manual entry mode and enables manual card data entry in purchase flows.
Removes SupplementaryData from ReconciliationResponse and replaces it with PaymentReceipt.
Removes receipt line width support; the LineWidth field is no longer sent in requests for Castle and Integrated terminals.
Adds new App & Notification icon.

Bug fixes

Aborted transactions now return ABRT/Aborted instead of NALW/NotAllowed, improving Cancel/Abort flow.
Fixes intermittent connection issues to improve reliability.
Fixes Terminal App navigation to Idle after a connection is established from the Configuration screen (no longer stuck in setup).
Fixes the visibility of the current configuration when reconfiguring the Terminal App.

Release notes