#### Features 🚀

- Variables and substitutions are implemented. See [docs](https://d2lang.com/tour/vars). [#1473](https://github.com/terrastruct/d2/pull/1473)
- Configure timeout value with D2_TIMEOUT env var [#1392](https://github.com/terrastruct/d2/pull/1392)
- Scale renders and disable fit to screen with `--scale` flag [#1413](https://github.com/terrastruct/d2/pull/1413)
- `null` keyword can be used to un-declare. See [docs](https://d2lang.com/tour/TODO) [#1446](https://github.com/terrastruct/d2/pull/1446)

#### Improvements 🧹

- Display version on CLI help invocation [#1400](https://github.com/terrastruct/d2/pull/1400)
- Improved readability of connection labels when they overlap another connection [#447](https://github.com/terrastruct/d2/pull/447)
- Error message when `shape` is given a composite [#1415](https://github.com/terrastruct/d2/pull/1415)
- Improved rendering and text measurement for code shapes [#1425](https://github.com/terrastruct/d2/pull/1425)
- The autoformatter moves board declarations to the bottom of its scope [#1424](https://github.com/terrastruct/d2/pull/1424)
- All font styles in sketch mode use a consistent font-family [#1463](https://github.com/terrastruct/d2/pull/1463)
- Tooltip and link icons are now positioned on shape border [#1466](https://github.com/terrastruct/d2/pull/1466)
- Tooltip and link icons are always rendered over shapes [#1467](https://github.com/terrastruct/d2/pull/1467)

#### Bugfixes ⛑️

- Fixes edge case in compiler using dots in quotes [#1401](https://github.com/terrastruct/d2/pull/1401)
- Fixes grid label font size for TALA [#1412](https://github.com/terrastruct/d2/pull/1412)
- Fixes person shape label positioning with `multiple` or `3d` [#1478](https://github.com/terrastruct/d2/pull/1478)