[Announcement] v1.5.1 Release

[Julius Pfrommer]

Dear all,

 

There is now a maintenance release v1.5.1 for the currently "stable" 1.5 release series.

You can get it on Github at https://github.com/open62541/open62541/releases/tag/v1.5.1.

 

Thanks to everybody whose effort contributed to this release.

The release notes are below.

 

Best regards,
Julius Pfrommer

 

Dr. Julius Pfrommer

General Manager | o6 Automation GmbH

Rintheimer Straße 23, 76131 Karlsruhe

Web: https://www.o6-automation.com

Mail: julius....@o6-automation.com

 

 

This open62541 release v1.5.1 is the first maintenance release of the 1.5 release series.

 

open62541 (http://open62541.org) is an open source implementation of OPC UA (OPC Unified Architecture / IEC 62541) written in the C language. The library is usable with all major compilers and provides the necessary tools to implement dedicated OPC UA clients and servers, or to integrate OPC UA-based communication into existing applications. The open62541 library is platform independent: All platform-specific functionality is implemented via exchangeable plugins for easy porting to different (embedded) targets.

 

open62541 is licensed under the Mozilla Public License v2.0 (MPLv2). This allows the open62541 library to be combined and distributed with any proprietary software. Only changes to the open62541 library itself need to be licensed under the MPLv2 when copied and distributed. The plugins, as well as the server and client examples are in the public domain (CC0 license). They can be reused under any license and changes do not have to be published.

 

Important changes compared to the previous v1.5.0 release include:

 

- core: Force nonce generation of at least 32 byte in the SecureChannel

- core: Initialize memory to zero in UA_ByteString_allocMemory

- core: Optimize bitfield size in UA_DataType

- arch: Check return value of getsockname in UDP_registerListenSocket (#7720)

- client: Don't close the SecureChannel when the servers sends a late response

- client: Create a dedicated "UserTokenPolicy" SecurityPolicy instance for authentication

- client: Only allow the config->authSecurityPolicies for certificate-based authentication

- server: Workaround clients using a nonce that is too short but still >= 32 byte

- server: Block transfer subscription between anonymous users

- server: Workaround for clients who don't set the encryption algorithm URI in the UserIdentityToken

- server: Track transferred subscriptions for correct diagnostics counter update

- server: Use constant-time string compare for username/password

- server: For x509 authentication, validate with the "sessionPKI" before going into the AccessControl plugin

- nodeset-compiler: use proper valuerank default if not set

- plugins: Check for correct RSA/ECC local certificate type when initializing the SecurityPolicies

 

Diff stat: 66 files changed, 1672 insertions(+), 989 deletions(-)

 

New features and major changes compared to the previous 1.4 release series include:

 

- core: JSON de/encoding according to the OPC UA 1.05 specification

- core: XML de/encoding of Variants (also with multi-dimensional arrays) and structure-types

- core: UA_String_format with shorthands to print OPC UA builtin types

- arch: Support for FreeRTOS (using the lwip EventLoop)

- arch: Support for QNX

- arch: Support for Zephyr

- server: Support for "local" Event-MonitoredItems

- server: Extended async operations (read/write/call)

- server: Improved value source API for VariableNodes

- server: Implement CertificateGroup handling

- server: Support for GDS push operations

- client: Transparent mapping between local and remote namespace-indices

- client: Automatically read the NamespaceArray during connect (add to the namespace mapping)

- client: Support for Event-MonitoredItems

- client: All async service APIs are typed

- client: Load DataTypeDefinitions from the server at runtime

- pubsub: Support for manual de/encoding of PubSub messages

- pubsub: Custom state machine for PubSubComponents to integrate communication backends

- pubsub: Public API to compute offset tables for fixed Network-/DataSetMessages

- pubsub: Improved loading of PubSub configurations from a (binary) file

- pubsub: Initial support for SKS

- nodeset-compiler: Use the native XML decoding to parse <Value> attributes at runtime

- util: Query language (and parser) for EventFilter, RelativePath, etc.

- util: Convert DataTypeDefinition into UA_DataType (internal representation)

- eventloop: EventLoop can be cancelled to immediately return from a "poll-sleep"

- eventloop: Option to limit the number of sockets open at the same time

- eventloop: Support for lwip-based EventLoop

- plugins: Crypto PKI/SecurityGroup with a file-system storage backend

- plugins: Support for ECC-based SecurityPolicies (OpenSSL only)

- tools: "Shell mode" for the ua-cli terminal client