diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8921e6b..4b439ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,39 @@
 
 All notable changes to this project will be documented in this file.
 
+## 0.3.0 - 2026-09-01
+
+### Breaking Changes
+
+- refactor!: make Competitor::message an Option, and compute_elapsed loud
+- refactor!: replace emptiness-as-sentinel with Option for results and weights
+- refactor!: remove ConvergenceReport::slices_skipped
+
+### Bug Fixes
+
+- fix: enforce EventBuilder weight/team length in release
+
+### Documentation
+
+- docs: complete the public API documentation contract
+
+### Features
+
+- feat: allow drift to vary per competitor via Member::with_drift_scale
+
+### Miscellaneous Tasks
+
+- chore: ignore proptest regression seed files
+
+### Performance
+
+- perf: stop cloning inference inputs in OwnedGame and ingestion
+- perf: make the per-slice SkillStore compact instead of dense
+
+### Testing
+
+- test: add property-based tests, a shared finiteness helper, and boundary inputs
+
 ## 0.2.0 - 2026-08-27
 
 ### Breaking Changes
@@ -36,6 +69,7 @@ All notable changes to this project will be documented in this file.
 - chore: target releases at the private kellnr registry
 - chore: keep the 48 MB ATP dataset out of the published crate
 - chore: dual-license MIT OR Apache-2.0
+- chore: Release trueskill-tt version 0.2.0
 
 ### Performance
 
diff --git a/Cargo.toml b/Cargo.toml
index 9bddde8..9899734 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "trueskill-tt"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2024"
 rust-version = "1.85"
 description = "TrueSkill Through Time: Bayesian skill rating that tracks how skill evolves over time, via Gaussian message passing"