docs: Release Aggregation für v1.8.0

[Copilot]

Retrospective release documentation for v1.8.0, covering all features merged between v1.7.0 and v1.8.0 (PRs #4250–#4299).

Description

New: docs/de/releases/RELEASE_NOTES_v1.8.0.md

Follows the v1.7.0 format exactly. Key sections:

• 54 PRs in a structured table with module/purpose columns
• 3 breaking changes: ZSTD replaces zlib in StreamWriter, unversioned HTTP paths → 301 to /v1/, CI workflow paths reorganised (138 files into 9 categories)
• 20+ feature sections per module — SSI, SAGA orchestration, Versioned API Routing, Markov PredictivePrefetcher, ArrowUserRegistrationPlugin, JWT scope enforcement, CRL/OCSP revocation, HardwareAccelerator AC-4/AC-5, ExporterFactory concrete impls, JoinExporter, Geo Clustering (DBSCAN + K-means), PolicyManager hot-reload, HuggingFace Hub 429 back-off, Wire Protocol V2, MySQL/MariaDB importer, and more
• Roadmap traceability: 28 items ✅ done, 8 deferred to v1.9.0+ (2PC, IndexRecommender, stable Importer ABI)
• Per-PR QA table covering tests / docs / security review flag
• Release stats: 280+ new tests, 12 new CI workflows, 5 new REST endpoints

Supporting updates

• roadmap.md — ## Milestone: v1.8.0 section added after v1.7.0 with PR/feature summary table
• CHANGELOG.md — ## [1.8.0] - TBD entry with Added / Breaking Changes / Fixed / Changed sections
• docs/de/releases/README.md — current version bumped to 1.8.0; v1.7.0 + v1.8.0 rows added to release overview table
• docs/de/INDEX.md — release notes table lists v1.8.0 as latest; roadmap link corrected to roadmap/roadmap_overview.md
• docs/en/INDEX.md — release notes links corrected from ../docs/de/releases/… to ../de/releases/…; roadmap link corrected to ../de/roadmap/roadmap_overview.md; v1.3.0 path corrected to ../de/releases/RELEASE_NOTES_v1.3.0.md

Corrections (review feedback)

• Fixed duplicate DistributedGraphManager entry in Release Statistics concurrency-hardening list; replaced second instance with PolicyManager so the count of 5 unique modules is accurate
• Corrected warmup feature file references from non-existent include/cache/cache_warmup.h / src/cache/cache_warmup.cpp to actual paths include/cache/adaptive_query_cache.h / src/cache/warmup.cpp

Type of Change

• Bug fix
• New feature
• Refactoring
• Documentation
• Other:

Testing

• Unit tests added/updated
• Integration tests added/updated
• Manual testing performed

📚 Research & Knowledge (wenn applicable)

• Diese PR basiert auf wissenschaftlichen Paper(s) oder Best Practices?
  • Falls JA: Research-Dateien in /docs/research/ angelegt?
  • Falls JA: Im Modul-README unter "Wissenschaftliche Grundlagen" verlinkt?
  • Falls JA: In /docs/research/implementation_influence/ eingetragen?

Relevante Quellen:

• Paper:
• Best Practice:
• Architecture Decision:

Checklist

• Code follows project style guidelines
• Self-review completed
• Documentation updated (if needed)
• No new warnings introduced

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Release-Aggregation für v1.8.0</issue_title>
<issue_description>Erstellung der Release-Dokumentation für v1.8.0. Ziel: Retrospektive Zuordnung und Dokumentation aller zwischen v1.7.0 und v1.8.0 implementierten Features gem. roadmap.md und Merge-Liste. Enthält:

• PR-Auflistung mit Hinweisen auf funktionale Erweiterungen
• Blocker- und QA-Fortschritt
• Zuweisung zu milestone:current

---

QA-Kriterien:

• Alle Blocker-PRs behoben
• Regressionstests passen
• Release-Doku abgeschlossen
  </issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Release-Aggregation für v1.8.0 #3072

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.

[Copilot]

Pull request overview

Adds retrospective v1.8.0 release documentation and updates the project’s top-level docs to reference the new release notes, keeping roadmap/changelog/index navigation aligned with v1.8.0.

Changes:

• Added docs/de/releases/RELEASE_NOTES_v1.8.0.md with aggregated PR list, feature summaries, breaking changes, QA/status, and roadmap traceability.
• Updated roadmap.md and CHANGELOG.md with a v1.8.0 milestone/entry pointing to the aggregation doc/issue.
• Updated German/English documentation indexes and the releases README to surface v1.8.0 as the latest release.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
roadmap.md	Adds a “Milestone: v1.8.0” summary section and links to the aggregation doc/issue.
docs/en/INDEX.md	Updates “Release Notes” table to include v1.8.0/v1.7.0 links as latest/previous.
docs/de/releases/RELEASE_NOTES_v1.8.0.md	New full v1.8.0 release aggregation document.
docs/de/releases/README.md	Bumps “Aktuelle Version” to 1.8.0 and adds v1.8.0/v1.7.0 rows.
docs/de/INDEX.md	Updates “Release Notes” table to include v1.8.0 as latest.
CHANGELOG.md	Adds ## [1.8.0] - TBD entry with Added/Breaking Changes/Fixed/Changed plus links to aggregation doc/issue.

---

You can also share your feedback on Copilot code review. Take the survey.

[makr-code]

@copilot weiter

[Copilot]

@copilot weiter

All five review issues addressed in commit 4dc0b57:

• docs/en/INDEX.md: Roadmap link → ../de/roadmap/roadmap_overview.md; release-notes links corrected from ../docs/de/releases/… to ../de/releases/…; v1.3.0 path corrected to ../de/releases/RELEASE_NOTES_v1.3.0.md
• docs/de/INDEX.md: Roadmap link → roadmap/roadmap_overview.md
• RELEASE_NOTES_v1.8.0.md line 496: deduplicated DistributedGraphManager in concurrency-hardening list; replaced second instance with PolicyManager (which also uses shared_mutex for hot-reload)
• RELEASE_NOTES_v1.8.0.md line 205: warmup file refs corrected from include/cache/cache_warmup.h / src/cache/cache_warmup.cpp → include/cache/adaptive_query_cache.h / src/cache/warmup.cpp (actual locations)