v1.2.1

Maintenance

• Updated GitHub Actions dependencies.
• Updated Meziantou.Analyzer to 3.0.162.
• Updated Meziantou.Polyfill to 1.0.160.
• Updated the NuGet package validation tool to 2.0.2.

Full Changelog: v1.2.0...v1.2.1

v1.2.0

Added

• Explicit Replace, ClearAndFill, and Append policies for existing-target collections.
• Invocation-local reference preservation for shared and cyclic mutable object graphs.
• Closed-world runtime dispatch through generated TryMapRuntime and MapRuntime methods.
• Cached provider-neutral expression projections through the optional DomainMapper.Projections package.
• Diagnostics DMPR105 through DMPR107 for unsupported tracking, projection, and registry declarations.
• Incremental invalidation, concurrency, trimming, and native AOT validation fixtures.

Changed

• Incremental generator inputs are fingerprinted per mapper and reachable source contract, keeping isolated changes from invalidating unrelated mapper outputs.
• The 1.2 packages validate public API compatibility against the 1.1 release.

Fixed

• Reference tracking now distinguishes target contracts when one source instance participates in heterogeneous target shapes.
• Projection generation rejects failed mappings, custom delegates, and user-defined conversion calls while retaining pure lifted conversions.
• Runtime registries reject open-world interface ambiguity and value-type derived dispatch, handle nullable annotations, and exclude mappings whose deferred helpers fail.
• Incremental invalidation includes containing partial types and inherited mapper declarations that affect emitted source.

Full changelog: v1.1.0...v1.2.0

v1.1.0

Features

• Add explicit property and field bindings with validated nested source paths.
• Add computed target members, typed conditions, ordered completion hooks, and additional mapping parameters.
• Add target and source ignores, target allow-lists for updates, and configurable completeness policies.
• Add per-member null behavior and constant substitution.
• Add reusable mapping includes and bounded recursive mapping with generated depth guards.

Compatibility and performance

• Keep convention mapping property-only and compatible with DomainMapper 1.0; fields participate only when explicitly configured.
• Preserve the fast convention-only compiler path and cache Roslyn member metadata per compilation.
• Add diagnostics DMPR102 through DMPR104 for invalid configuration and completeness enforcement.

Full changelog: v1.0.0...v1.1.0

v1.0.0

DomainMapper 1.0.0

The first public release of DomainMapper, a compile-time .NET mapper with a domain-driven design bias.

Highlights

• Direct generated C# with no runtime reflection.
• Domain-owned constructors and static factories for invariant-preserving mappings.
• Mutable and immutable targets, records, nested objects, collections, and dictionaries.
• Existing-target updates plus nested and generic mapper support.
• Fail-closed diagnostics when a target cannot be mapped completely.
• Multi-Roslyn packaging for supported .NET compiler versions.

Install

dotnet add package DomainMapper --version 1.0.0

Validation

• 57 unit and repository tests passed locally.
• Hosted build, test, package validation, integration tests for .NET 8, 9, 10 and .NET Framework, lint, CodeQL, and static analysis passed.
• The final NuGet artifact passed package validation before publication.