diff --git a/CHANGELOG.md b/CHANGELOG.md
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+++ b/CHANGELOG.md
@@ -1,3 +1,19 @@
+## 0.10.0 (2026-06-18)
+
+
+### Features
+
+* An experimental rust-based implementation of the OpenJD model and expression language are now available as opt-in features, delivering significant performance improvements for template parsing, expression evaluation, and job creation. Consumers can opt into the Rust implementation by importing from `openjd.model._v1` or `openjd.expr` directly, with the `_v1` prefix indicating these APIs are experimental and may evolve. ([`3d853e5`](https://github.com/OpenJobDescription/openjd-model-for-python/commit/3d853e542dbee4e4c707044fc145dad8bcd138b4))
+  - `openjd.expr` — New expression language, with `evaluate_expression`, `parse_expression`, path mapping (`PathFormat`, `PathMappingRule`), range expressions, symbol tables, and typed error hierarchy.
+  - `openjd.model._v1` — Rust-backed template decoding (`decode_job_template`), job creation (`create_job`), capability validation, and all template/job types.
+
+### Bug Fixes
+
+* make userInterface control field optional for all parameter types ([#278](https://github.com/OpenJobDescription/openjd-model-for-python/pull/278)) ([`5e10e2c`](https://github.com/OpenJobDescription/openjd-model-for-python/commit/5e10e2c036d79bd5a0548600055d33107c0eaa04))
+* require attribute and amount names to be unique ([#265](https://github.com/OpenJobDescription/openjd-model-for-python/pull/265)) ([`c5ba60e`](https://github.com/OpenJobDescription/openjd-model-for-python/commit/c5ba60e8c85abf1f0c1226df96830c042d5beff5))
+* reject control characters in job names ([#263](https://github.com/OpenJobDescription/openjd-model-for-python/pull/263)) ([`0d428c4`](https://github.com/OpenJobDescription/openjd-model-for-python/commit/0d428c4febde028ba49793e75ead12a398205f8d))
+
+
 ## 0.9.1 (2026-02-20)