## [4.25c] — 2025-09-25
### Added
- **path**:
  - `get_point`
  - `iter()`.
- **tkz-elements.sty**:
  - `\tkzGetPointFromPath(#1,#2){#3}`
  - `\tkzPathCount(#1){#2}`
  - `\tkzDrawFromPointToPath`.
- **tkz**: Function `tkz.parabola(a, b, c)` to obtain the quadratic form whose graph passes through the three points `a`, `b`, and `c` (under certain conditions).

### Changed
- **Source structure**: Removed version numbers and dates from each `tkz_elements_xxx.lua` file.
	The official version and release date are now maintained **only** in:
	- `tkz-elements.sty` (for LaTeX users),
	- `README.md`,
	- `CHANGELOG.md`,
	- `doc/tkz-elements.pdf`.
- **occs**: The `coordinates` method now returns numbers instead of strings (removed `checknumber_`).
- **path**: Improved `get_number_path` method.


### Docs
- Renamed several examples: the old names were more explicit.
- After **Overview**, added three navigation tables (attributes, methods, metamethods) for each class. All elements should now be listed, with links to their definitions and, where relevant, to examples.
- Rewrote the section on **path**.
- Added in **Theorems**: Circle–Point Midpoint Theorem.
- Added documentation for the new macros of **tkz-elements.sty**.
- Added in **Examples**: Construction of the midcircle of two disjoint circles.


## [4.21c] — 2025-09-21
### Docs
- Changed the names of the examples.
- The examples now use external Lua files.
- Corrected the documentation.
- Cleaned up the files: unused labels have been removed, as well as **overfull box**.

## [4.20c] — 2025-09-17
### Added
- **triangle**: `thebault/c_c` (Thébault’s problem III), `poncelet_point`, `orthopole(L)`,
	`mixtilinear_incircle`, `three_tangent_circles`, `morley`, `soddy`, `napoleon`.
- **quadrilateral**: support for orthopole via helper function `tkz.orthopole(a, b, c, l)`.

### Changed
- **circle**: improved `common_tangent`, `orthogonal_through`, `orthogonal_from`, `c_cc_p`.
- **line**: improved `distance`.
- **triangle**: rewrites of `symmedian_line`, `altitude`, `bisector`, `bisector_ext`,
	`mediator`, `ex_circle`, `reflection`.

### Fixed
- **circle**: `common_tangent` correctness issues.

### Docs
- New subsection **Best practices** in **Writing Convention, best practices and common mistakes**.
- New examples for `thebault/c_c` in **class triangle** and **theorems** (Thébault’s problem III).
- New examples for `poncelet_point` (triangle and quadrilateral).
- Examples for **orthopole** (triangle + examples section).
- Various corrections.

## [4.15c] — 2025‑06‑15
### Added
- `tkz.trisector` to divide a sector into three equal parts (returns two points).
- Triangle method: `mediator` (perpendicular bisector of the side opposite the chosen vertex).
- Utility: `tkz.is_direct` to test whether ∠ABC is oriented positively.

### Changed
- Triangle methods now accept the vertex **itself** in place of a permutation index (e.g. `bisector`, `altitude`, `ex-circle`), improving clarity and consistency.
- Renamed `tkz_dc` → `tkz.dc`; removed remaining occurrences of the old name.

### Docs
- Updated manual; new example added (**Morley triangle**).

## [4.10c]
### Added
- Modules `utils` and `tkz` (formatting, rounding, comparisons, table ops; helpers like `tkz.solve`, `tkz.midpoint`, `tkz.length`, angle tools, barycenter, etc.).
- `path` class interop with conics and triangles; TikZ macros `\tkzDrawPointsFromPath`, `\tkzGetPointsFromPath`, `\tkzDrawCirclesFromPaths`, `\tkzDrawSegmentsFromPaths`.
- Triangle: `poncelet_point`, `orthopole`.
- Macro aliasing: `\tkzPN` = `\tkzPrintNumber`, `\tkzDrawPath` = `\tkzDrawCoordinates`.
- `\tkzEraseLuaObj` to delete a Lua object.

### Changed
- Circle method `orthogonal_through` rewritten and corrected.

### Docs
- New examples: Archimedean spiral, Poncelet point, Orthopole, Path examples.

## [4.00c]
### Added
- New `path` class; short syntax for constructors (omit `.new`).
- Metapost “mini” macro; options `known` and `near` for intersections; trilinear/barycentric rewrites; line methods `orthogonal_at(pt,k)` and `colinear_at(pt,k)`.

### Changed
- Removed scaling within the Lua section (prefer TikZ‑level scaling).
- Various fixes: triangle `point` method; rectangle `get_lengths`; Gauss pivot improvements.

### Docs
- Major rewrite; new sections (**Short contents, Getting started, Class path, LuaLaTeX for beginners, Global variables and constants, Various functions, Module utils, Metapost**).