Stratara.Contracts 3.1.7

.NET 10.0

dotnet add package Stratara.Contracts --version 3.1.7

NuGet\Install-Package Stratara.Contracts -Version 3.1.7

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="Stratara.Contracts" Version="3.1.7" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

<PackageVersion Include="Stratara.Contracts" Version="3.1.7" />
                    

                            Directory.Packages.props

<PackageReference Include="Stratara.Contracts" />
                    

                            Project file

For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.

paket add Stratara.Contracts --version 3.1.7

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: Stratara.Contracts, 3.1.7"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

#:package Stratara.Contracts@3.1.7

#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.

#addin nuget:?package=Stratara.Contracts&version=3.1.7
                    

                            Install as a Cake Addin

#tool nuget:?package=Stratara.Contracts&version=3.1.7
                    

                            Install as a Cake Tool

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

Stratara.Contracts

License: MIT.

Wire-level POCO contracts shared by every Stratara package. Pure data records — no runtime, no DI, no infrastructure deps. Safe to reference from any layer.

Messages/EventMessage, EventBundle, CommandEnvelope — the cross-process envelope shapes that messaging adapters (Stratara.Outbox.RabbitMQ etc.) serialise on and off the bus.
Requests/PagedRequest — shared pagination + sort record used by query handlers across the family.
Session/SessionContext — public data shape for actor/subject identity, correlation, causation, and connection routing. The corresponding service abstractions live in Stratara.Sessions.

Quick reference

// Build a CommandEnvelope outside the framework (rare, but supported)
var envelope = new CommandEnvelope(
    Id: Guid.CreateVersion7(),
    CommandJson: commandJson,
    CommandTypeName: typeof(MyCommand).AssemblyQualifiedName!,
    SessionContextJson: sessionContextJson);

Dependencies

None. Contracts is the lowest tier in the Stratara dependency graph.

Product	Compatible and additional computed target framework versions.
.NET	net10.0 is compatible. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed.

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

net10.0
- No dependencies.

NuGet packages (9)

Showing the top 5 NuGet packages that depend on Stratara.Contracts:

Package	Downloads
Stratara.Abstractions Contract interfaces and POCO records for the Stratara CQRS / Event Sourcing framework — Mediator, EventSourcing, Persistence, Outbox, Messaging, Session, Security, Authorization. Library-safe, no EF Core or message-bus runtime.	4.7K
Stratara.Sessions ASP.NET Core middleware and provider for Stratara's Actor/Subject session model. Reads tenant and user from JWT claims (or X-Tenant-Id / X-Client-Id headers) and populates the ambient ISessionContextProvider for every request.	4.1K
Stratara.Shared Umbrella package for the Stratara framework — source-generated logger extensions for outbox / saga / projection / messaging, domain-event helpers, merge primitives, and the Tier-A/B abstractions surface re-exported as one transitive bundle.	2.4K
Stratara.Projections Projection runtime for the Stratara event-sourced stack — projection-handler discovery, change-set creation, update application, and projection manager. Sits between read-model repositories and the event-bundle dispatcher.	1.7K
Stratara.Outbox.RabbitMQ Outbox-pattern command and event dispatch for the Stratara event-sourced stack — RabbitMQ IMessageBus implementation, retry worker, mediator command worker, and Redis-coordinated projection-replay state. Azure Service Bus support ships as the sibling Stratara.Outbox.AzureServiceBus package.	1.6K

GitHub repositories

This package is not used by any popular GitHub repositories.

Version	Downloads	Last Updated
3.1.7	246	7/1/2026
3.1.6	654	6/22/2026
3.1.5	313	6/22/2026
3.1.4	1,495	6/15/2026
3.1.3	324	6/10/2026
3.1.2	324	6/5/2026
3.1.1	1,040	6/1/2026
3.1.0	296	5/30/2026
3.0.23	287	5/28/2026

### Added

- **Event upcasting (`IEventUpcaster`).** Persisted events can now be transformed from an older
on-disk schema into the shape the current event record expects, applied on read before the payload
is deserialized. Register upcasters with `AddEventUpcaster<TUpcaster>()`; each implements
`IEventUpcaster` (`SourceEventTypeName` / `TargetEventTypeName` plus `JsonNode Upcast(JsonNode)`) and
they chain across successive schema versions (v1→v2→v3), including event-type renames — the source
type no longer needs to exist in the assembly. Matching ignores the assembly `Version` segment, and
a cyclic or duplicate-source chain is rejected. Hosts that register no upcasters are unaffected
(transparent pass-through). Snapshots are not upcasted — change an aggregate's shape and rebuild its
snapshots.

### Changed

- **Copyright holder corrected to the full legal name "Norbert Heinz Rosenwinkel"** in the `LICENSE`
file and in the `Authors` / `Copyright` package metadata. No code or licensing-terms change — the
license remains MIT.