Release version 0.12.0.

### Major-level changes

- Replace : with space in type annotations.
- Replace - with : in slice indexes.
- Replace * with # in slice indexes.
- Rename arithmetic operators.

### Minor-level changes

- Add operator REFUTE.
- Add operator ISMAP.
- Add operator ISFUNC.
- Add operator ISTHR.
- Allow 1 at ident start.
- Update ident name rules.
- Document path stdlib module.

### Patch-level changes

- Moved to Clang.
- Update README.md.
- Make TYPE-only assignment error on type conflict.
- Fix passing/restart-basic.pre.

Author: python-processing-unit

docs/CHANGELOG.html

@@ -21,6 +21,34 @@
 
 ---
 
+## 0.12.0
+
+### Major-level changes
+
+- Replace `:` with space in type annotations.
+- Replace `-` with `:` in slice indexes.
+- Replace `*` with `#` in slice indexes.
+- Rename arithmetic operators.
+
+### Minor-level changes
+
+- Add operator `REFUTE`.
+- Add operator `ISMAP`.
+- Add operator `ISFUNC`.
+- Add operator `ISTHR`.
+- Allow `1` at ident start.
+- Update ident name rules.
+- Document `path` stdlib module.
+
+### Patch-level changes
+
+- Moved to Clang.
+- Update README.md.
+- Make TYPE-only assignment error on type conflict.
+- Fix passing/restart-basic.pre.
+
+---
+
 ## 0.11.1
 
 ### Patch-level changes