4.4.3

• REBOUND now raises ImportError if it detects a size mismatch between the C and python Simulation structures.
• Fixes a bug in the WHFast512 synchronization on non-AVX512 systems.
• Fixes a bug in the SimulationArchive in cases where there are multiple snaptshots with t=0.
• Updates TRACE switching condition to match Lu et al (2024).
• TRACE binary file has been reduced.
• Pericenter passage time is now calculated even if particles are not in a Simulation.

4.4.2

• Fixed bug in TRACE when adding particles.
• Added WHFast fallback for synchronizing WHFast512 simulations with N_systems > 1.
• Output version number used to create Simulationarchive if there is a version mismatch.
• Added C example simulationarchive_fields which outputs all fields in a simulationarchive for debugging purposes.

4.4.1

• Fixed bug in TRACE for FULL PERI modes.

4.4.0

• Added TRACE integrator. See Lu, Hernandez & Rein (2024) for details on this implementation.

4.3.2

• No longer clipping particles and orbits in visualization.
• Added a scale to visualization. Hide by pressing t.
• Option to take a screenshow manually in png (WebGL) or tga (OpenGL) format by pressing e.
• Improved plane visualization mode. Now supporting hyperbolic orbits.
• Fixed a memory leak in reb_simulation_copy.

4.3.1

• Added new plane visualization mode for orbits. Press w to toggle through available orbit visualization modes.
• Added python interface for screenshot API.
• Fixed an issue where no python exception was raised when a particle was added outside a simulation box.
• Renamed past_N to breadcrumbs in visualization module.

4.3.0

• Take screenshots of WebGL based visualizations using the reb_simulation_output_screenshot() function. You need to connect one web browser to the simulation in order to take screenshots.
• Improved synchronization of visualization and simulation on Windows with mutex.
• Fixes an issue that might lead to NaN values when less than the maximum number of planets are used in WHFast512.

4.2.0

• It is now possible to programmatically change all aspects of a REBOUND visualization. This can be used to set up default viewing options or to render animations. See the C examples in animation_solar_system and animation_saturn_rings.
• Reworked matrix operations in visualization routines to follow the Model-View-Projection paradigm.
• Fixed an issues where unit tests would fail because a binary file was not deleted.

4.1.1

• Fixed python wheels for windows.

4.1.0

• New visualization feature that allows you to show past particle positions and orbits (keyboard commands p, u, and i).
• After pausing a simulation, you can now advance it by a single timestep by pressing the down arrow or 50 timesteps by pressing the page down key.
• Visualization now supports scroll to zoom.
• Fixed memory leaks when using custom ODEs.
• Fixed broken links in documentations.