1 Documentation Structure and Scope

This Release Notes document provides a consolidated overview of the new features, enhancements, resolved issues, and documentation updates included in OFIS 26.4.0.0 for OFIS Cloud and OFIS Premise. Detailed implementation guidance is organized by country and OPERA product (OPERA Cloud or OPERA 5) and, where applicable, by fiscal partner. Each country- and product-specific document includes only the information relevant to that implementation. The implementation documentation aligns with the information in this guide but is not a duplicate of the consolidated release summary. Use the related documentation links to access the implementation guidance for your country, OPERA product, and fiscal partner.

The implementation documentation aligns with this guide but does not duplicate the consolidated release summary. Use the related documentation links to access implementation guidance for a country, OPERA product, and fiscal partner.

OPERA Fiscal Integration Solution Compatibility Matrix, Installation, Upgrade, and Uninstall Guides

For information about the OPERA Fiscal Integration Solution Compatibility Matrix and the installation, upgrade, and uninstall guides, see the Customer Support Portal (ICCP).