v0.3.0

ci/release/changelogs/v0.3.0.md

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+TALA 0.3.0 implements position-locking to give control over parts of the diagram where you need it. This is an advanced feature that opens up a world of possibilities to create small bubbles of customized layouts and combine it with autolayout. For example, here's a legend:
+
+<img src="https://raw.githubusercontent.com/terrastruct/TALA/master/docs/assets/legend.png" />
+
+```d2
+Legend: {
+  top: 0
+  left: 0
+  blue: "" {
+    width: 20
+    height: 20
+    left: 0
+    top: 0
+    style.stroke: black
+  }
+  blue-explanation: Actions {
+    shape: text
+    left: 50
+    top: 0
+  }
+
+  green: "" {
+    width: 20
+    height: 20
+    left: 0
+    top: 50
+    style.fill: honeydew
+    style.stroke: black
+  }
+  green-explanation: Intermediate artifacts {
+    shape: text
+    left: 50
+    top: 50
+  }
+}
+```
+
+We're excited to see all the creative diagrams this enables!
+
+#### Features 🚀
+
+- `top` and `left` positions implemented.
+
+#### Improvements 🧹
+
+- ~30% faster for large, connected diagrams
+- Much faster gap normalization for all diagrams
+- Bin-packing algorithm improved to reduce whitespace between non-connected subgraphs
+
+#### Bugfixes ⛑️
+
+- Fixes label placements avoiding connections that weren't actually obstructing
+- Fixes a rare panic that could with cluster nodes
+- Edges could sometimes route through nodes that were not part of its subgraph
+- Edges between containers that were perfectly aligned was sometimes unable to find a route.