Release v1.9.0

Author: tenzir-bot

…unreleased/fixture-tag-test-selection.md ….0/entries/fixture-tag-test-selection.mdchangelog/unreleased/fixture-tag-test-selection.md renamed to changelog/releases/v1.9.0/entries/fixture-tag-test-selection.md changelog/unreleased/fixture-tag-test-selection.md renamed to changelog/releases/v1.9.0/entries/fixture-tag-test-selection.md

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+created: 2026-05-11
+title: Fixture tag test selection
+intro: >-
+  This release lets users select tests by fixture tag with the new --fixture-tag option.
+  It makes it easier to run focused subsets such as container-backed or Docker Compose
+  tests without naming every test path.
+source:
+  mode: sync-stable-queue
+  previous_stable: v1.8.4

changelog/releases/v1.9.0/manifest.yaml

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+This release lets users select tests by fixture tag with the new --fixture-tag option. It makes it easier to run focused subsets such as container-backed or Docker Compose tests without naming every test path.
+
+## 🚀 Features
+
+### Fixture tag test selection
+
+Select tests by fixture tag with the new `--fixture-tag` option:
+
+```sh
+tenzir-test --fixture-tag container
+tenzir-test --fixture-tag docker-compose
+```
+
+Fixture tags are cumulative and can be repeated. The selector intersects with positional test paths and `--match` patterns, so you can narrow a directory to container-backed tests or run only tests that request the built-in Docker Compose fixture.
+
+Fixtures that use the shared container runtime helpers inherit the `container` tag automatically. Custom fixtures can pass explicit tags at registration time when they use their own abstraction.
+
+*By @mavam and @codex in #42.*

changelog/releases/v1.9.0/notes.md

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 [project]
 name = "tenzir-test"
-version = "1.8.4"
+version = "1.9.0"
 description = "Reusable test execution framework extracted from the Tenzir repository."
 readme = "README.md"
 requires-python = ">=3.12"