fixup changelog

Author: hellerve

CHANGELOG.md

@@ -2,10 +2,22 @@
 
 all notable changes to this project will be documented in this file.
 
+## [0.3.0] - 2025-10-22
+
+- added `minilang` example
+- expanded builder helpers with scratch-register stacks, call/return helpers, link-register preservation, and label resolution utilities
+- added regression coverage for new builder call flows
+- corrected arm64 branch fixup offsets so label-driven jumps land at the intended targets
+
+## [0.2.0] - 2025-10-21
+
+- introduced the builder helper layer for fn prologues, loops, and conditionals
+- added documentation (`docs/builder.md`) and high-level fibonacci example demonstrating the new api
+- added builder harness for ci
+- added clang-format and clang-tidy to ci
+
 ## [0.1.0] - 2025-10-20
 
 - initial public snapshot of `cj`
-- auto-generated instruction encoders via `codegen/`.
-- core runtime (`ctx.c`), operand utilities (`op.h`), and register definitions.
-
-<!-- Future entries: add new versions in descending order -->
+- auto-generated instruction encoders via `codegen/`
+- core runtime (`ctx.c`), operand utilities (`op.h`), and register definitions