Release v0.4.0

Features 🚀

• New dashboard panel for showing reaction traces

Improvements 🛠️

• Added Reactor.request_shutdown() method (Python)
• Added add_attributes() method to all elements (C++)
• Added get() and is_present() methods to the PortEffect class (C++)
• Periodic timers require a nonzero period (Python)
• Switched lag and execution time panels to showing points instead of interpolated lines (Dashboard)
• Switched execution time panel to logarithmic timescale (Dashboard)
• Disabled auto-refresh by default (Dashboard)
• Improved positioning of "Refresh" and "Back" buttons in metrics view (VS Code)

Fixes 🐛

• Exclude lag from reaction spans shown (Dashboard)
• Correctly display FQNs in the metrics view (VS Code)
• Also include inherited attributes in the metrics view (VS Code)

Examples 💡

• Added Python Webots example showing software-in-the-loop simulation

Deprecated 🗑️

• Removed the deprecated enable_tracing() method (Python, C++)
• Removed Reactor.environment property (Python)
• Removed StartupDeclaration and ShutdownDeclaration (Python)

Release v0.3.0

Features 🚀

• New metrics view showing all the metrics reported by the application in the VS Code extension
• New dashboard panels showing:
  • lag of all reactions
  • execution times of all reactions
  • number of reactions executed in the current time window
  • a metric as selected by the new drop-down menu in the top

Improvements 🛠️

• Compatibility with cmake 4.0.0
• Reduced sensitivity when scaling diagrams in the VS Code extension
• Show informative error message when calling execute() multiple times on the same environment (C++ SDK)
• Introduced enable_telemetry() method in Python and C++ SDKs

Examples 💡

• Added C++ example showing interoperability with ROS 2
• Added Python keyboard synthesizer example

Deprecated 🗑️

• Removed the options panel from the VS Code extension
• Removed the Source class from Python and C++ SDKs
• Removed the add_source() method from the Python SDK
• Deprecated enable_tracing() which is replaced by enable_telemetry()

Release v0.2.0

Updates & Changes

• Third-party dependency gRPC (and its dependencies absl and protobuf) are now built from source for the C++ SDK to improve portability. We eventually plan to package these as statically linked libraries (fixes #6)

Fixes & Improvements

• Fix issue where C++ SDK could not be built on Ubuntu 22.04 due to a dependency issue with apt packaged version of gRPC
• Resolve issue where xronos-dashboard would not run on ARM v8.0 (Raspberry Pi 4, NVIDIA Jetson Nano) due to a breaking change in a Grafana dependency
• C++ SDK documentation fix broken link to examples in GitHub repository
• Add missing LICENSE file in root of public/ folder
• Add top-level README to for public repository

Release v0.1.0

Features

• Add C++ SDK for building reactor programs in C++
• Merge xronos[telemetry] package with the xronos package so metrics and telemetry are always available
• Support for Python 3.13
• Support for Python 3.13t lock-free threading (no-GIL)

Deprecated

• PhysicalEvent will soon be deprecated. Stay tuned for upcoming library reactors that will replace it.
• LogicalEvent is renamed ProgrammableTimer.
• xronos[telemetry] pip package is now integrated with the xronos package -- xronos[telemetry] is no longer supported as a standalone package

Fixes

• Resolve build failure when protobuf compiler is installed by a system package manager and not built from source
• Monte carlo example ensure simulation period > 0

Improvements

• Improve error message in create_reactor - if the user provides a callable that is not a reactor class, it seems better for them to get a type error than an AttributeError.

Release v0.0.4

Highlights

• new xronos-telemetry package providing a telemetry backend
• new xronos-dashboard CLI tool for managing the Xronos Dashboard
• Added metrics for recording data points
• Added attributes to give users more control on how they want to tag their data
• Library reactors for handling external input, including reading from console and from sockets
• New examples montecarlo and simple-neural-net
• Python 3.13 support

v0.0.3

Release v0.0.2

v0.0.2

Release v0.0.2

v0.0.1

Release v0.0.1