[Diff since v0.6.15](v0.6.15...v0.6.16)

- new field `width_3l`
- read the fields for the KPS4-3L model from yaml file

**Merged pull requests:**
- Add kps4_3l key to the settings dict. (#48) (@1-Bart-1)

[Diff since v0.6.14](v0.6.14...v0.6.15)

- add fields needed for the new KPS4-3L model

**Merged pull requests:**
- add kps4_3l to settings (#45) (@ufechner7)
- update kps4_3l (#46) (@ufechner7)
- add aero surfaces setting (#47) (@1-Bart-1)

[Diff since v0.6.13](v0.6.13...v0.6.14)

- all methods of the function save_log() accept now the named parameter `path`

[Diff since v0.6.12](v0.6.12...v0.6.13)

- downgraded RecursiveArrayTools because the latest version stopped working any longer

[Diff since v0.6.11](v0.6.11...v0.6.12)

- add 6 more free variables, now 16 free variables can be logged per time step
- drop support for Julia 1.9

[Diff since v0.6.10](v0.6.10...v0.6.11)

- the functions `export_log()` support now the named parameter `path` to specify the directory
- the function `load_log()` works now when a fully qualified filename is passed

[Diff since v0.6.9](v0.6.9...v0.6.10)

- new parameters `rel_compr_stiffness` and `rel_damping` in settings.yaml

- the functions `load_log` and `save_log` have the new, optional, named parameter `path` to specify the file path;
  if not specified, the default data path is used.

[Diff since v0.6.8](v0.6.8...v0.6.9)

- function fpc_settings()
- function fpp_settings()

[Diff since v0.6.7](v0.6.7...v0.6.8)

- function wc_settings(), which returns the name of the wc_settings.yaml file of the current project
- the function load_settings(project) now expects the name of the `systems.yaml` file as parameter
- the key `project` in `systems.yaml` was replaced with the key `sim_settings`
- the key `wc_settings` was added to `systems.yaml`

[Diff since v0.6.6](v0.6.6...v0.6.7)

- five more free variables for the SysState and for logging, var_06 to var_10