The S2OPC team is proud to announce the 1.7.0 release of S2OPC.

This release introduces several improvements including:

Security Audit: fires OPC UA events in case of cybersecurity related events
Role Permission: to assign permissions to roles rather than individual users, simplifying management and improving security
PubSub Extended Support: it is now available on Windows
History Read: adds the capacity for the server to store previous values of nodes
Node Management : completes the services to add and delete nodes run time
Performance Improvement: improves performance of write/add nodes operations
Zephyr 4.1 Support: compatible with the latest version of this real-time operating system

New features¶

Ticket #1528: Server: add Audit support for AuditSecurity event types
Ticket #1531: PubSub: implement DataSetMessage timestamp option
Ticket #1539: PubSub: filter DataSetMessage emission at runtime and compilation time
Ticket #1542: Server: implement a limited set of RolePermission features
Ticket #1549: AddNodes service: Support adding a node of type Object
Ticket #1568: Server: Implement service DeleteNodes
Ticket #1596: Server : add multiple subscriptions feature
Ticket #1603: AddNodes service: Support adding a node of type Method
Ticket #1612: AddNodes service: support automatic creation of TypeDefinitionNode hierarchy for Variable/Object
Ticket #1630: PubSub: add a callback for Publisher signature failure and Subscriber signature check failure
Ticket #1632: PubSub Security Key Services: add a callback SK builder for SKS push model
Ticket #1644: Server: add HistoryRead service first implementation
Ticket #1664: Server: allow to overwrite client requests prior to treatment

Enhancements¶

Some notable enhancements are:

Ticket #1343: Remove the extern const crypto profile
Ticket #1357: NodeSet merge tool: Alias support is incomplete
Ticket #1435: Add UDP support on Windows
Ticket #1494: Use NamespaceArray from XML NodeSet (instead of server config) + NS1 URI shall be Application server URI
Ticket #1535: Enable Sign security mode with publisherFixedSize optimisation
Ticket #1547: AddressSpaceAccess functions should be tested in CI
Ticket #1548: Minor fixes and enhancements
Ticket #1551: Add handling permission ReceiveEvents
Ticket #1552: Certificate ExtendedKeyUsages are not enforced when extension is absent from certificate
Ticket #1555: Implement service translateBrowsePathToNodeId in addressSpaceAccess module
Ticket #1558: Implement partial browse service in addressSpace access module
Ticket #1560: Client request builder SOPC_EventFilter_SetSelectClause should allow empty browse path
Ticket #1561: Server OPC UA events: provide a way to define an Event instance NodeId
Ticket #1562: MethodCall manager becomes thread-safe
Ticket #1563: LocalizedText write: authorize invariant locale and same locale on existing instance
Ticket #1564: Add a monitoring of S2OPC event Queue size
Ticket #1570: Custom OPC UA types: define a constant for the associated namespace index
Ticket #1573: AddressSpace embedded loader: allow use of Node management services
Ticket #1578: Server API: add custom callback for asynchronous local services
Ticket #1579: Server API: TriggerEvent should also allow to restrict the session
Ticket #1580: File Transfer Rework
Ticket #1581: Simplify SOPC_NodeId_FromCString function
Ticket #1584: B model: Improve provability of constants
Ticket #1592: XML AddressSpace parser fails on Empty ExtendedObject Body subNodes
Ticket #1594: Method Call: server doesn’t send output arguments when method return status is uncertain
Ticket #1595: Client API: add custom callback for asynchronous services
Ticket #1598: Access server endpoints through high level API
Ticket #1602: B model: Improve provability of session_core
Ticket #1605: Add multi subscription (client side)
Ticket #1608: Get UserPolicyId from server
Ticket #1613: Update to zephyr3.7.0
Ticket #1621: Update to zephyr4.1.0
Ticket #1629: Remove outdated servers registered using RegisterServers2
Ticket #1631: PubSub Security Keys: manage security group id for security keys
Ticket #1636: Make FreeRTOS sample compatible with NXP’s boards
Ticket #1650: SOPC_CircularLogFile_Delete does not release pointer
Ticket #1651: SOPC_Time_GetString crashes in case of invalid input
Ticket #1654: WINDOWS socket cannot listen more than 63 sockets
Ticket #1656: add an option to build.sh to change the number of CPU used for make jobs
Ticket #1658: Client connections: allow to actually close secure channel / TCP connection
Ticket #1662: Add option for disabling check of uniqueness of BrowseName in AddNodes
Ticket #1663: Add the possibility to set CPU affinity on thread creation
Ticket #1665: Check that Application URI is set ServerArray[1] and is equal to NamespaceArray[0]
Ticket #1666: Provide connection context in user authorization callback mechanism
Ticket #1672: Server: improve performance of write/add nodes operations
Ticket #1678: Remove deprecated API for encodeable types and client API
Ticket #1685: Session timeout: avoid closure of session in case of time reference going backward
Ticket #1686: PyS2OPC (client): Add timeout on synchronous call + Add missing status codes

Bug fixed and known bugs¶

The list of fixed bugs and of known bugs is available in the 1.7.0 Gitlab release page.

What is S2OPC ?¶

S2OPC is a software solution for client-server and pub-sub communications using OPC UA standard.

designed to target the cyber-security and real-time constraints of embedded products
deployed on larger command-control or supervision systems

S2OPC has a security visa from ANSSI for the CSPN certification and a certificate of compliance with the OPC UA v1.04 standard from the OPC Foundation.

Multiplatform SDK, S2OPC is used in application scaling from IIoT modules to SCADA systems. It supports both Client/Server and PubSub. S2OPC is also ready for integration with TSN networks.

S2OPC is an open-source solution for OPC UA communications.