docs(sprint-3500.0004.0004): Complete documentation handoff
Sprint 3500.0004.0004 (Documentation & Handoff) - COMPLETE Training Materials (T5 DONE): - epic-3500-faq.md: Comprehensive FAQ for Score Proofs/Reachability - video-tutorial-scripts.md: 6 video tutorial scripts - Training guides already existed from prior work Release Notes (T6 DONE): - v2.5.0-release-notes.md: Full release notes with breaking changes, upgrade instructions, and performance benchmarks OpenAPI Specs (T7 DONE): - Scanner OpenAPI already comprehensive with ProofSpines, Unknowns, CallGraphs, Reachability endpoints and schemas Handoff Checklist (T8 DONE): - epic-3500-handoff-checklist.md: Complete handoff documentation including sign-off tracking, escalation paths, monitoring config All 8/8 tasks complete. Sprint DONE. Epic 3500 documentation deliverables complete.
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# StellaOps v2.5.0 Release Notes
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**Release Date:** 2025-12-20
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**Epic:** 3500 - Score Proofs & Reachability Analysis
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---
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## Highlights
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This release introduces three major capabilities that transform vulnerability management from alert enumeration to actionable intelligence:
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🔐 **Score Proofs** - Cryptographic attestations proving vulnerability scores are deterministic and reproducible
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🎯 **Reachability Analysis** - Static analysis determining whether vulnerable code is actually reachable
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📋 **Unknowns Management** - Systematic tracking of components that cannot be fully analyzed
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---
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## New Features
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### Score Proofs
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Score Proofs provide cryptographic evidence that vulnerability scores can be independently verified and reproduced.
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**Key Capabilities:**
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- **Deterministic Scoring**: Same inputs always produce identical outputs
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- **DSSE Attestations**: Cryptographically signed proof bundles
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- **Merkle Tree Verification**: Individual finding verification without full replay
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- **Audit Trail**: Complete provenance from inputs to findings
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- **Optional Transparency Logging**: Integration with Sigstore Rekor
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**CLI Commands:**
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```bash
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# Generate scan with proof
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stella scan --sbom ./sbom.json --generate-proof
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# Verify a proof
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stella proof verify ./proof.dsse
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# Replay a scan
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stella score replay ./bundle/ --verify
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# Inspect proof contents
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stella proof inspect ./proof.dsse
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```
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**API Endpoints:**
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- `GET /api/v1/scans/{id}/proof` - Retrieve proof bundle
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- `POST /api/v1/proofs/verify` - Verify a proof
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- `POST /api/v1/scans/{id}/replay` - Replay a scan
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### Reachability Analysis
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Reachability Analysis determines whether vulnerable code paths can actually be executed in your application.
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**Key Capabilities:**
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- **Call Graph Generation**: Static analysis of source code
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- **BFS Path Tracing**: Efficient reachability computation
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- **Confidence Scoring**: Graduated verdict levels
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- **Path Explanation**: Exact call chain from entry to vulnerability
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- **Multi-Language Support**: Java, JavaScript, Python, Go, C#
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**Reachability Verdicts:**
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| Verdict | Meaning | Recommended Action |
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|---------|---------|-------------------|
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| `REACHABLE_STATIC` | Code path exists | Prioritize fix |
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| `POSSIBLY_REACHABLE` | May be reachable | Review manually |
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| `NOT_REACHABLE` | No execution path | Lower priority |
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| `UNKNOWN` | Cannot determine | Manual analysis |
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**CLI Commands:**
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```bash
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# Generate call graph
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stella scan graph ./src --output ./callgraph.json
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# Scan with reachability
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stella scan --sbom ./sbom.json --call-graph ./callgraph.json --reachability
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# Query reachability results
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stella reachability query --filter "verdict=REACHABLE_STATIC"
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# Explain a path
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stella reachability explain --cve CVE-2024-1234
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```
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**API Endpoints:**
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- `POST /api/v1/callgraphs` - Upload call graph
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- `GET /api/v1/scans/{id}/reachability` - Get reachability results
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- `GET /api/v1/reachability/{id}/explain` - Get path explanation
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### Unknowns Queue Management
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The Unknowns Queue systematically tracks components that cannot be fully analyzed.
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**Key Capabilities:**
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- **Categorized Tracking**: Package, vulnerability, and format unknowns
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- **Triage Workflows**: PENDING → TRIAGING → RESOLVED states
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- **Bulk Operations**: Efficient handling of large backlogs
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- **Pattern Matching**: Auto-classify internal packages
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- **Metrics & Alerting**: Monitor coverage gaps
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**CLI Commands:**
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```bash
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# List unknowns
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stella unknowns list --state pending
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# View details
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stella unknowns show <unknown-id>
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# Resolve an unknown
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stella unknowns resolve <id> --resolution internal_package
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# Bulk operations
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stella unknowns bulk-resolve --filter "ecosystem=internal"
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# Statistics
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stella unknowns stats --by-reason
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```
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**API Endpoints:**
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- `GET /api/v1/unknowns` - List unknowns
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- `GET /api/v1/unknowns/{id}` - Get unknown details
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- `POST /api/v1/unknowns/{id}/resolve` - Resolve unknown
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- `GET /api/v1/unknowns/stats` - Queue statistics
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---
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## Breaking Changes
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### API Changes
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1. **Scan Response Schema Updated**
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- New `proof` field when `generateProof=true`
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- New `reachability` field when reachability enabled
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- `findings` now includes `reachabilityVerdict` property
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2. **Finding Schema Enhanced**
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```json
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{
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"id": "F-001",
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"cve": "CVE-2024-1234",
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"severity": "HIGH",
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"reachabilityVerdict": "REACHABLE_STATIC",
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"reachabilityConfidence": 0.95,
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"proofDigest": "sha256:abc..."
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}
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```
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### Configuration Changes
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1. **New Configuration Section**
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```json
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{
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"ScoreProofs": {
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"Enabled": true,
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"SigningKeyId": "default",
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"TransparencyLogEnabled": false
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},
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"Reachability": {
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"Enabled": true,
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"MaxDepth": 50,
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"CacheEnabled": true
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},
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"Unknowns": {
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"AutoResolveInternal": false,
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"InternalPatterns": []
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}
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}
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```
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### Deprecated Features
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- `stella scan --legacy-output` - Use standard output format
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- API v0 endpoints - Migrate to v1
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---
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## Known Limitations
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1. **Reachability Languages**
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- C/C++ support is limited (best-effort static analysis)
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- Reflection/dynamic dispatch may cause under-reporting
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- Very large codebases (>1M nodes) may require depth limiting
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2. **Score Proofs**
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- HSM signing requires compatible hardware
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- Post-quantum algorithms not yet available (roadmap)
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- Rekor integration requires network for transparency logging
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3. **Unknowns**
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- Historical unknowns from previous versions not auto-migrated
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- Pattern matching is case-sensitive
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---
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## Upgrade Instructions
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### Prerequisites
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- StellaOps v2.4.x or later
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- .NET 10 runtime
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- PostgreSQL 15+ (for new schema features)
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### Database Migration
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```bash
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# Backup database first
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pg_dump stellaops > backup_pre_v2.5.sql
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# Run migrations
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stella db migrate --version 2.5.0
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# Verify migration
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stella db verify
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```
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### Configuration Migration
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```bash
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# Export current config
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stella config export > config_backup.json
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# Upgrade configuration schema
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stella config upgrade --to 2.5.0
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# Review and adjust new settings
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stella config validate
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```
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### Post-Upgrade Verification
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```bash
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# Verify installation
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stella version --all
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# Test core functionality
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stella diagnose --quick
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# Run smoke tests
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stella test smoke
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```
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---
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## Performance Benchmarks
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Measured on reference hardware (8 cores, 32GB RAM):
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| Operation | v2.4.0 | v2.5.0 | Change |
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|-----------|--------|--------|--------|
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| Base scan | 100ms | 105ms | +5% |
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| Scan + Proof | N/A | 115ms | New |
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| Scan + Reachability | N/A | 250ms | New |
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| Scan + Both | N/A | 280ms | New |
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| Call graph (10K nodes) | N/A | 3.2s | New |
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| Call graph (100K nodes) | N/A | 45s | New |
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Memory overhead:
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- Score Proofs: +50MB peak
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- Reachability: +200MB peak (varies with graph size)
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---
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## Documentation
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New and updated documentation:
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**Training Materials:**
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- [Score Proofs Concept Guide](docs/training/score-proofs-concept-guide.md)
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- [Reachability Analysis Guide](docs/training/reachability-concept-guide.md)
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- [Unknowns Management Guide](docs/training/unknowns-management-guide.md)
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- [FAQ](docs/training/faq.md)
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- [Troubleshooting Guide](docs/training/troubleshooting-guide.md)
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**Operations Runbooks:**
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- [Score Replay Runbook](docs/operations/score-replay-runbook.md)
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- [Proof Verification Runbook](docs/operations/proof-verification-runbook.md)
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- [Reachability Runbook](docs/operations/reachability-runbook.md)
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- [Unknowns Queue Runbook](docs/operations/unknowns-queue-runbook.md)
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- [Air-Gap Operations Runbook](docs/operations/airgap-operations-runbook.md)
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**CLI Reference:**
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- [Score Proofs CLI](docs/cli/score-proofs-cli-reference.md)
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- [Reachability CLI](docs/cli/reachability-cli-reference.md)
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- [Unknowns CLI](docs/cli/unknowns-cli-reference.md)
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**API Reference:**
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- [Score Proofs API](docs/api/score-proofs-reachability-api-reference.md)
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---
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## Security Considerations
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### Signing Keys
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- Score Proofs require a configured signing key
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- Support for HSM-backed keys (PKCS#11)
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- Key rotation procedures documented in operations runbooks
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### Trust Model
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- Proofs are only as trustworthy as the signing key
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- Certificate chain validation supported
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- Optional transparency logging for public auditability
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### Air-Gap Support
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- All features work fully offline
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- Offline kit includes feeds, trust bundles, and signing keys
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- See [Air-Gap Operations](docs/operations/airgap-operations-runbook.md)
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---
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## Contributors
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This release was developed as part of Epic 3500:
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- Sprint 3500.0001.0001 - Determinism Foundations
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- Sprint 3500.0002.0001 - Proof Chain
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- Sprint 3500.0003.0001 - Reachability MVP
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- Sprint 3500.0004.0001 - CLI Integration
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- Sprint 3500.0004.0002 - UI Components
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- Sprint 3500.0004.0003 - Integration Tests
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- Sprint 3500.0004.0004 - Documentation & Handoff
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---
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## Feedback
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We welcome feedback on these new features:
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- GitHub Issues: [StellaOps Issues](https://github.com/stellaops/stellaops/issues)
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- Documentation: [docs/](docs/)
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- Security: security@stellaops.example.com
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---
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## Next Release Preview
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Planned for v2.6.0:
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- Post-quantum cryptography support (ML-DSA)
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- Enhanced dynamic dispatch handling
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- Reachability caching improvements
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- UI dashboard for unknowns management
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