# Changelog — tkz-berge

All notable changes to `tkz-berge` are listed here, most recent first.

## [2.20c] — 2026/10/20
### Changed
- Keys use the pgfkeys layer of tkz-graph instead of `xkeyval`: same names,
  same default values, same results.
- The macros call the internal commands of tkz-graph (`\tkzgr@Vertex`,
  `\tkzgr@Edge`, `\tkzgr@Edges`), not the short names.
- Needs tkz-graph 2.20c (2026-10-20) or later; an error is raised otherwise.
- `\grHypercube[options]{n}`: hypercube Q_n; vertices named by their binary
  word (`a000`, `a001`...); classic drawings for n = 1 to 4.
- `\grTree[options]{k}{depth}`: complete k-ary tree; vertex j of level l
  named `<prefix>l;j`.

### Examples
- NamedGraphs examples: each file has its own preamble (no more
  `\input{tkzpreamblenamed.ltx}`); `tkzNamed-12-2-0` loads `xcolor` with
  `dvipsnames`, `tkzNamed-15-2-0` declares its counter `tempi`.

## [2.00] — 2021/01/20
- Correction of bugs and new documentation.

## 1.00
- First version.