docs(release): add 2.1.0 release notes

planning/releases/2.1.0.md

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+# modern-di-taskiq 2.1.0 — adopt the modern-di integration kit
+
+Maintenance release. **No public API change** — `FromDI`, `setup_di`,
+`fetch_di_container`, and `taskiq_message_provider` keep their signatures
+and behavior. Swaps this package's hand-rolled connection-context derivation
+and marker resolution for the shared primitives in
+[`modern_di.integrations`](https://github.com/modern-python/modern-di/blob/main/architecture/integration-kit.md),
+shipped in
+[modern-di 2.28.0](https://github.com/modern-python/modern-di/releases/tag/2.28.0).
+Eleventh of 13 planned adapter conversions across the `modern-di` ecosystem
+(after
+[`modern-di-starlette` 2.2.0](https://github.com/modern-python/modern-di-starlette/releases/tag/2.2.0),
+[`modern-di-fastapi` 2.10.0](https://github.com/modern-python/modern-di-fastapi/releases/tag/2.10.0),
+[`modern-di-litestar` 2.13.0](https://github.com/modern-python/modern-di-litestar/releases/tag/2.13.0),
+[`modern-di-aiohttp` 2.2.0](https://github.com/modern-python/modern-di-aiohttp/releases/tag/2.2.0),
+[`modern-di-flask` 2.1.0](https://github.com/modern-python/modern-di-flask/releases/tag/2.1.0),
+[`modern-di-faststream` 2.10.0](https://github.com/modern-python/modern-di-faststream/releases/tag/2.10.0),
+[`modern-di-typer` 2.3.0](https://github.com/modern-python/modern-di-typer/releases/tag/2.3.0),
+[`modern-di-grpc` 2.1.0](https://github.com/modern-python/modern-di-grpc/releases/tag/2.1.0),
+[`modern-di-celery` 2.1.0](https://github.com/modern-python/modern-di-celery/releases/tag/2.1.0),
+and
+[`modern-di-arq` 2.1.0](https://github.com/modern-python/modern-di-arq/releases/tag/2.1.0)).
+taskiq is a **native-DI adapter** (uses taskiq's own `TaskiqDepends`) with a
+single connection provider, so — like grpc — it uses `bind()` directly with
+no `classify_connection`.
+
+## Internal refactors
+
+- **`build_di_container` now derives scope/context via
+  `integrations.bind(taskiq_message_provider, context.message)`**, and opens
+  the per-task child via `async with ... as container: yield container` —
+  replacing the manual `try`/`finally: await container.close_async()`. taskiq
+  has a single connection provider, so there's no `classify_connection`
+  dispatch (nothing to dispatch across).
+- **`Dependency`'s field is renamed from a raw `dependency` to
+  `marker: integrations.Marker[T_co]`; `__call__` delegates to
+  `self.marker.resolve(request_container)`.** `FromDI` now constructs
+  `Dependency(integrations.Marker(dependency))` — its own signature
+  (`dependency, *, use_cache`) is unchanged, and it still wraps taskiq's own
+  `TaskiqDepends`.
+- Like `modern-di-fastapi`/`modern-di-litestar`/`modern-di-faststream`, this
+  package is a **native-DI** adapter: no hand-rolled `@inject` decorator, no
+  `parse_markers`/`resolve_markers` usage, and no imports become dead.
+- `setup_di`, `fetch_di_container`, and the
+  `WORKER_STARTUP`/`WORKER_SHUTDOWN` root-lifecycle wiring are untouched.
+- `architecture/dependency-injection.md`'s "Per-task scope" and "Resolution"
+  sections promoted to describe the new internals.
+
+## Packaging
+
+- Bumps the `modern-di` floor to `>=2.28,<3`.
+
+## Downstream
+
+No action needed — the public API (`FromDI`, `setup_di`,
+`fetch_di_container`, `taskiq_message_provider`) is unchanged. Upgrading
+only requires `modern-di>=2.28.0`.
+
+## Internals
+
+- 100% line coverage; `ruff`, `ty` clean across Python 3.10–3.14. Tests use
+  `taskiq.InMemoryBroker` (no external broker).
+- Built via `subagent-driven-development`: 5 planned tasks, each with an
+  independent spec+quality review; a whole-branch review before merge that
+  traced the async-generator-inside-`async with` structure's close-timing
+  against the original `try`/`finally` on both the normal and task-error
+  paths.