Changes in Version 2.0.4
- Fixed an error that caused the WebSocket server to return the HTTP error 400 Bad Request instead of 401 Unauthorized if no Authorization header was received in a WebSocket request. This prevented WebSocket connection from being established from JavaScript, e.g. in HTML pages.
Changes in Version 2.0.3
- Fixed a bug that could cause an execution track to stall if an event was fired during the suspended stage
Changes in Version 2.0.2
General Improvements
- The WebSocket interface now sends a JSON-RPC formatted error message if it receives a text frame
Bug Fixes
- Fixed a bug that could prevent certain config files from being found if a relative config directory had been specified on the command line using –config-dir or -ConfigDir. In particular, this could prevent Xentara from finding the private key associated with a certificate file.
- Fixed a bug that could prevent the Xentara debugger from finding running instances of Xentara under Linux
Documentation Fixes
- Fixed broken links to some JSON schema files in the download page
- Corrected the default paths listed for security related configuration files under Linux
Changes in Version 2.0.1
- Fixed a bug that could lead to data corruption in some plugins when receiving data over the network
- Fixed a problem generating the node licence on WSL on some versions of Windows 11
Changes in Version 2.0
Breaking Changes
- UUIDs in model files are now checked for uniqueness. Models with duplicate element UUIDs can no longer be loaded and must be fixed first.
- Scheduling configuration in model files is now checked more stringently. This will cause some previously accepted invalid model files to be rejected.
- the values of time stamp attributes that lie infinitely far in the past or future are now represented as “never (-infinity)” and “never (infinity)”, respecitively, when displayed or read as strings.
New Features
- added a CBOR WebSocket interface to the Xentara application
- added support for access control using access control lists
- added global security configuration for configuring certificates and authentication
- added support for summary states
- added support for converted values for converting between raw and real values
- added support for inverted values for inverting Boolean values
- added support for bit values to extract single bits from an integer value
- added support for edge detection
- timers and execution pipelines are now full Xentara elements with key and UUIDs.
- added support for execution pipelines that are triggered by multiple events and/or timers.
- added support for specifying the required timing precision of an execution tracks
- added support for CPU affinity to execution tracks
- the thread count for execution tracks is now calculated automatically unless specified
- added support for value of type string, time stamp, and UUID to registers
- added “generated” event to signal generator samplers and signals
- there are now change events for all attributes regardless of the skill used
- the command history is now saved when exiting the Xentara debugger
- element and attribute keys no longer need to be enclosed in quotes in the Xentara debugger
- added “attributes” command to the Xentara debugger to list all attributes of an element
- added “whois” command to the Xentara debugger to find the element with a certain UUID
- added man pages under Linux
Bug Fixes
- signal generator signals now trigger the “changed” event when the quality changes
- multiple pipelines in multiple tracks can now be triggered by the same event
- fixed a bug in the debugger that would truncate time stamps under Windows
Model Files
- The configuration parameters “id” and “uuid” for Xentara elements have been renamed to “name” and “UUID” (capitals), respectively. The old names are still supported.
- The strings “@IOComponent”, “@IO”, “@IOBatch”, and “@Microservice” have been replaced with “@Skill” in the type designation of skill elements. The old names are still supported.
Xentara model files written for Xentara version 1.2 and earlier can be loaded by Xentara version 2.0 without changes. Xentara 2.0 has more stringent checking for model files, though, so some invalid model files (e.g. files that contain elements with duplicate UUIDs) that were accepted by Xentara 1.2 will be rejected in Xentara 2.0.
Developer API Changes
This version also contains improvements to the utility library and the plugin library. See the documentation for xentara-utils and xentara-plugin for details.
Known Issues
This version does not contain the bug fix listed for version 1.2.2 below
Changes in Version 1.2.2
- Note
- This version consists of backports from Xentara 2.0 and Xentara 2.0.1
- Extended the licence file format to support Xentara 2.0-style licence files (backported from Xentara 2.0)
- Fixed a bug that could lead to data corruption in some plugins when receiving data over the network (backported from Xentara 2.0.1)
Changes in Version 1.2.1
- fixed a high CPU load in the main thread on 32-bit ARM Linux systems
- fixed an issue that could cause high CPU load under Linux with certain configurations
Changes in Version 1.2
Model Files
- Periods of timers are now specified using strings with units instead of a number of microseconds in Xentara model files. The old syntax is still supported.
- Replaced reference time of timers with an offset from a standard timer start starts 1 January, 2001, 00:00:00 UTC. The old syntax is still supported.
- Period, phase offset and pulse with of signal generator signals are now specified using strings with units instead of a number of microseconds in Xentara model files. The old syntax is still supported.
Xentara model files written for Xentara version 1.1 can be loaded by Xentara version 1.2 without changes.
Developer API Changes
This version also contains improvements to the utility library and the plugin library. See the documentation for xentara-utils and xentara-plugin for details.
Changes in Version 1.1
New Features
Bug Fixes
- Added support for older WSL 2 kernels
- Fixed “top” and “bottom” attributes of signal generator signals
- Fixed “warningText” attribute of debugging logger, which printed “ERROR” instead of “WARNING”
- Fixed a bug that caused the change time of a signal generator signal to be 1 January 1970, 00:00 UTC instead of -infinity.
Developer API Changes
This version also contains improvements to the utility library and the plugin library. See xentara-utils and xentara-plugin for details.
Changes in Version 1.0
This is the initial release of Xentara.
