0.2.4 Improves documentation. 0.2.3 Raises Dart SDK minimum to 3.1.0. 0.2.2 Adds p256k support (#135). Fixes a padding issue (#134). 0.2.1 Improves documentation. 0.2.0 Fixes various bugs. 0.1.1 Updates dependency constraints and linting rules. 0.1.0 Finishes null safety migration. 0.1.0-nullsafety.1 Fixes SDK and dependency constraints. 0.1.0-nullsafety.0 Initial version.