- Added Gill's RK4 solver.
- Added Ralston's RK4 solver.
- Added Nystrom's RK5 solver.
- Added Butcher's RK6 solver.
- Added Verner's RK8 solver.
- Added generic Runge-Kutta solver implementation (not available from GUI).
- Fixed gravity being set to 1 when creating a new universe.

- Added Heun solver (2nd-order RK)
- Added Ralston solver (2nd-order RK)
- Added 3/8-Rule 4th-order RK solver
- Added two 3rd-order RK solvers
- Improved implementation of Classic 4th-order RK
- Fixed crash when too many bodies were created through pressing 'R' key

- Added 4th-order Runge-Kutta solver.
- Added Midpoint solver (2nd-order R-K)

- Fixed semi-implicit Euler solver.
- Added 2 new solvers: Stormer-Verlet and Verlet Velocity.
- Refactored all solvers.

Now cplanets achieved enough functionality to supersede the previous,
java-based, program, namely japla.

- Scrollable pane now can be scrolled through mouse wheel scrolling.
- Planetarium class is SDL_widgets-independent. A SDL_widgets adapter
was conceived around it, namely PlanetariumPane.
- Many bug fixes

- Holding R will start spamming random bodies

- Fixed orbit tracing, body creation and selection under reference
frames.
- Minor optimizations.

- Partially implemented reference frame (follows a selected group of bodies)

-Moved about button to the left button group.
-Internal changes: preliminar support for reference frames.

- Minor refactoring.
- Version bump

Changes from 0.6:

- Bodies list now supports selection (using custom widget).
Multi-selection is supported.
- Selecting bodies in the list will highlight them. Also works by
selecting bodies on the planetarium.
- Added Remove button.
- Now accepting -v or --version argument, which shows the version and
exit.
- Now accepting -c or --centered, which makes the window centered on
start (setting SDL_VIDEO_CENTERED=1 environment variable also works).
- Now accepting -h or --help argument, which shows the program usage.
- Program shows custom icon.
- Better "About" dialog.
- Preliminar makefile for linux build.
- Fixed a bug when colliding a large number of bodies.
- Internal changes and refactoring.
- Other minor fixes

-Added -h/--help argument.
-Selecting bodies in the list will highlight them. Also works by selecting bodies on the planetarium.

-Preliminar makefile for linux build.
-Program shows custom icon.
-Now accepting -v or --version argument, which shows the version and exit.
-Now accepting -c or --centered, which makes the window centered on start (setting SDL_VIDEO_CENTERED=1 environment variable also works).
-Better "About" dialog.
-Minor fixes
-Bodies list now supports selection (using custom widget). Multi-selection is supported.
-Internal changes, refatoring.

- Added Remove button.
- Fixed a bug when colliding a large number of bodies.
- Internal refactoring.

- Added controls for step delay and FPS.
- Added functional legacy 'planets'-style controls (display period and iterations per display)
- Display period has a different meaning; Previously it incorrectly worked as a delay between each iterator
- Removed spline trace style option and renamed "Point" style to "Dotted"
- Better internal thread control
- A lot of refactoring and some fixes

- Fixed crash when too many bodies collided at the same time
- Body selection through selection and double-click
- Changed default gravity to 9.807
- Minor changes

- Added possibility to switch the integration method.
- Minor changes.
- Minor code cleanup.
- Experimental spline trace type now available.

Fixes compilation on Win32.

- Fix pausing when pressing "New" button.
- Added field to select new random body velocity.
- Beatified About dialog.

- Fixed bodies list capacity.
- Added scrollbar to bodies list.
- Internal changes

Added file load/save capability with dialogs.

- Created DialogBgrWin widget.
- Created FileDialog widget.
- Renamed widgets namespace from SDL_util to WidgetsExtra, to better
reflect their purpose.
- Fixed occasional bug when creating/colliding bodies.
- Fixed orbit trace glitch on newly created/collided bodies.

Universe io methods. Added Dialog