v2.0.0

PRs

• Configure Renovate for Go transitive dependencies with 3-day merge delay by @Breee with @Copilot in #52
• Add decision record for DiscoveryPolicy query/signal/ranking pipeline by @Breee with @Copilot in #56
• Feat/breaking change rework ranking by @Breee in #58

Breaking Changes

• We did a fundamental change on how DiscoveryPolicy works, because it was not flexible enough to handle specific strategies that we need for our research.
• DiscoveryPolicy no longer uses sources[]. The old single-stage discovery model was replaced by a three-stage pipeline: queries[] -> signals[] -> ranking.

Migration

• Move each old discovery source into spec.queries[] with a stable name.
• Add a matching spec.signals[] entry that points at that query by name.
• Set spec.ranking to choose the final ordering signal.
• If you used a Prometheus source, keep the PromQL in queries[].prometheus.query and put the aggregation in the signal stage.
• If you used a registry source, move it to queries[]; registry discovery already returns pre-ranked tags, so you usually do not need a signal or ranking block.

Example migration:

# Before
spec:
  sources:
    - name: runner-image-usage
      type: prometheus
      prometheus:
        endpoint: https://mimir.example.com
        query: count(container_memory_working_set_bytes{namespace="gitlab-runner"}) by (image)
      aggregationMethod: sum

# After
spec:
  queries:
    - name: runner-image-usage
      type: prometheus
      prometheus:
        endpoint: https://mimir.example.com
        query: count(container_memory_working_set_bytes{namespace="gitlab-runner"}) by (image)
  signals:
    - name: total-usage
      query: runner-image-usage
      type: aggregate
      aggregate:
        method: sum
  ranking:
    strategy: signal
    signal: total-usage

Added

• New live-cluster benchmark fetcher at research/benchmark/evaluator/fetch_cluster_data.py for pulling Prometheus and Loki data into the evaluator CSV schema.
• New discovery-style visual treatment for the research docs, including the kitchen analogy figure that replaced the old blueprint-style diagram.
• Expanded research benchmark documentation with the live-cluster workflow and output schema.
• README coverage for the current benchmark pipeline, developer workflow, and docs generation commands.

Changed

• Research docs now use a CLI-first workflow for fetching real cluster data, with a manual assembly fallback.
• Inline math in the research docs was normalized to the Hugo-compatible \(...\) form.
• Helm install examples in the README were aligned to the drop-system namespace.
• Development commands in the README were updated to match the current Makefile targets and Tilt-based dev loop.

Fixed

• Prometheus secret examples now consistently document headers.<name> as a supported secret key.
• The kitchen analogy figure layout was cleaned up so the arrows read as a simple flow instead of fanning out awkwardly.
• The old blueprint-style figure artifacts were removed from the docs asset pipeline.

Full Changelog: v1.5.0...v2.0.0

v1.5.0

What's Changed

• Docs: add discovery example with tolerations for scheduling on unready nodes by @Breee with @Copilot in #47
• feat: add aggregationMethod and queryType enum fields to DiscoveryPolicy PrometheusSource by @Breee with @Copilot in #50

Full Changelog: v1.4.2...v1.5.0

v1.4.2

What's Changed

• [WIP] Fix failing GitHub Actions job ci / lint by @Copilot in #44

Full Changelog: v1.4.1...v1.4.2

v1.4.1

What's Changed

• chore(deps): update docker/dockerfile docker tag to v1.24 by @renovate[bot] in #43

Full Changelog: v1.4.0...v1.4.1

v1.4.0

Full Changelog: v1.3.0...v1.4.0

v1.2.3

Full Changelog: v1.2.2...v1.2.3

v1.2.2

Full Changelog: v1.2.1...v1.2.2

v1.2.1

What's Changed

• chore(deps): update sigstore/cosign-installer action to v4 by @renovate[bot] in #32
• chore(deps): update peaceiris/actions-hugo action to v3 by @renovate[bot] in #30
• chore(deps): update actions/setup-go action to v6 by @renovate[bot] in #22
• feat: package CRDs as separate helm chart with ArgoCD examples by @Copilot in #36
• Fix helm-lint failure by creating chart template directories in sync-crds by @Copilot in #39
• chore(deps): update actions/deploy-pages action to v5 by @renovate[bot] in #21
• chore(deps): update actions/attest-build-provenance action to v4 - autoclosed by @renovate[bot] in #18
• Improve Discovery docs with motivation, war stories, and CI-focused README examples by @Copilot in #38
• Fix e2e CI deploy step by skipping Helm CRD install by @Copilot in #41
• Prevent e2e Helm install from re-owning pre-applied CRDs by @Copilot in #42

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

v1.2.0

What's Changed

• fix(release): lowercase OCI repository owner in helm push by @Copilot in #31

Full Changelog: v1.1.0...v1.2.0