Core System Architecture Part 108 — Anonymous Network Release Readiness, Production Certification, Go/No-Go Decision, Operational Acceptance & Privacy-Preserving Launch Governance Architecture
SIAR — Secure, Local-First, Multi-Transport Communication Platform
Series: Core System Architecture
Part: 108
Status: Architecture specification
Primary language: Rust
Builds on: Core System Architecture Parts 49–52, 61–65, 70–73, 94–107
Primary purpose: define SIAR's release-governance architecture for release readiness, production certification, launch evidence, go/no-go decisions, operational acceptance, rollback preparedness, cross-domain signoff, exception handling, progressive exposure, post-launch verification, and privacy-preserving launch governance.
1. Purpose
A release should not reach production because:
the build passed
the artifact exists
the deadline arrived
the feature is wanted
It should reach production because the organization can answer:
Is the artifact trusted?
Are security/privacy controls satisfied?
Are dependencies compatible?
Can capacity absorb the release?
Can we roll back or forward-fix safely?
Are on-call and runbooks ready?
Are backups and DR valid?
Are tenant/federation boundaries respected?
What evidence supports launch?
Who has authority to say go?
The governing principle is:
SIAR launches only when production readiness is demonstrated through typed evidence, independent safety gates, scoped authority, and explicit operational acceptance.
2. Architectural Position
RELEASE CANDIDATE
│
▼
READINESS EVIDENCE
│
┌───────────────┼───────────────┐
│ │ │
SECURITY OPERATIONS COMPATIBILITY
│ │ │
└───────────────┼───────────────┘
▼
PRODUCTION CERTIFICATION
│
▼
GO / NO-GO DECISION
│
┌──────────────┼──────────────┐
│ │ │
GO HOLD NO-GO
│
▼
PROGRESSIVE LAUNCH
│
▼
POST-LAUNCH VERIFY
│
▼
ACCEPTED / ROLLBACK
3. Core Separation
Keep distinct:
release candidate
release readiness
production certification
approval
go/no-go decision
launch execution
operational acceptance
post-launch verification
4. Non-Goals
Part 108 does not create:
a marketing launch checklist
user-behavior-based go/no-go
rubber-stamp release approval
manual spreadsheet as release authority
per-user launch targeting
5. Release Candidate
#![allow(unused)] fn main() { pub struct ReleaseCandidate { pub release: ReleaseId, pub version: ReleaseVersion, pub artifact_set: Vec<ArtifactDigest>, pub source_revision: SourceRevision, pub target_environments: BTreeSet<EnvironmentClass>, } }
6. Exact Artifact Identity
Hard rule.
No certification for:
"whatever CI builds next"
"latest"
mutable tag
7. Release Candidate State
#![allow(unused)] fn main() { pub enum ReleaseCandidateState { Built, Verified, ReadinessReview, Certified, LaunchApproved, Launching, Accepted, Rejected, Revoked, } }
8. No Built -> LaunchApproved
Hard rule.
9. Release Readiness
Readiness is evidence that production launch is safe enough under defined policy.
10. Readiness Domains
#![allow(unused)] fn main() { pub enum ReadinessDomain { BuildIntegrity, SupplyChain, Security, Privacy, Compatibility, DataMigration, Capacity, Reliability, DisasterRecovery, Observability, Operations, Support, Residency, Compliance, Federation, } }
11. Readiness Requirement
#![allow(unused)] fn main() { pub struct ReadinessRequirement { pub id: ReadinessRequirementId, pub domain: ReadinessDomain, pub mandatory: bool, pub evidence_policy: EvidencePolicy, } }
12. Mandatory Means Mandatory
Hard rule.
13. Readiness Evidence
#![allow(unused)] fn main() { pub struct ReadinessEvidence { pub requirement: ReadinessRequirementId, pub state: ReadinessEvidenceState, pub evidence_refs: Vec<EvidenceRef>, pub generated_at: CoarseTimestamp, } }
14. Evidence State
#![allow(unused)] fn main() { pub enum ReadinessEvidenceState { Pass, Fail, Unknown, ExceptionApproved, } }
15. Unknown ≠ Pass
Hard rule.
16. ExceptionApproved ≠ Pass
Hard rule.
17. Exception Meaning
Explicit accepted deviation.
18. Build Integrity Readiness
Requires:
reproducible build evidence
artifact digests
source revision
toolchain lock
provenance
19. Part 73 Integration
Supply-chain provenance mandatory.
20. Hard rule.
21. Artifact Promotion
Production must receive exact verified artifact.
22. No rebuild after certification.
23. Hard rule.
24. SBOM Readiness
Every production release includes SBOM.
25. Vulnerability scan against exact artifact.
26. Part 98 integration.
27. Hard rule.
28. Vulnerability Readiness
Check:
critical vulnerabilities
known exploitation
accepted exceptions
mitigations
29. Critical Exposure
Blocks launch unless emergency policy explicitly permits a safer constrained path.
30. Hard rule.
31. Security Readiness
Check:
authn/authz
secret handling
crypto configuration
network policy
hardening
attestation
32. Security Gate
#![allow(unused)] fn main() { pub struct SecurityReadinessGate { pub required_controls: Vec<ControlId>, pub minimum_posture: SecurityPostureLevel, } }
33. Unknown control state blocks certification.
34. Hard rule.
35. Privacy Readiness
Check:
privacy floor
data classification
telemetry
retention
consent behavior
anonymity mode
36. No Launch If
release silently increases:
telemetry collection
identifier linkage
private data upload
anonymity downgrade
without approved policy/consent.
37. Hard rule.
38. Privacy Readiness Gate
#![allow(unused)] fn main() { pub struct PrivacyReadinessGate { pub required_policies: Vec<PrivacyPolicyRef>, pub forbidden_regressions: Vec<PrivacyRegressionClass>, } }
39. Privacy Regression Classes
#![allow(unused)] fn main() { pub enum PrivacyRegressionClass { NewStableIdentifier, ExpandedTelemetry, NewRemoteProcessing, AnonymityDowngrade, BroaderRetention, NewCrossBorderTransfer, } }
40. Compatibility Readiness
Check:
client/server protocol
mixed-version operation
federation peer compatibility
schema compatibility
plugin/API compatibility
41. Part 52/99/107.
42. Mixed-Version Window
Must be explicitly supported.
43. Hard rule.
44. Compatibility Matrix
#![allow(unused)] fn main() { pub struct ReleaseCompatibilityMatrix { pub release: ReleaseId, pub compatible_client_versions: VersionRange, pub compatible_server_versions: VersionRange, pub protocol_versions: BTreeSet<ProtocolVersion>, } }
45. No Assumed Backward Compatibility
Hard rule.
46. Data Migration Readiness
If release changes persistence:
migration plan
dry run
backup/checkpoint
duration estimate
rollback/forward-fix semantics
47. Hard rule.
48. Migration Readiness State
#![allow(unused)] fn main() { pub enum MigrationReadiness { NotRequired, ReadyRollbackable, ReadyForwardFixOnly, Blocked, } }
49. No Fake Rollback
Hard rule.
50. Capacity Readiness
Part 101.
Check:
headroom
canary capacity
regional reserve
DB connection capacity
queue limits
51. Release must not consume protected security capacity.
52. Hard rule.
53. Capacity Evidence
#![allow(unused)] fn main() { pub struct CapacityReadiness { pub expected_load: CapacityEstimate, pub available_headroom: CapacityEstimate, pub state: ReadinessEvidenceState, } }
54. Reliability Readiness
Check:
SLO impact
failure modes
retry behavior
circuit breakers
load shedding
55. Hard rule.
56. DR Readiness
Part 100.
Check:
backup freshness
restore compatibility
failover compatibility
recovery runbook
57. No production launch that makes recovery impossible unknowingly.
58. Hard rule.
59. Observability Readiness
Release must expose sufficient operational signals.
60. Required:
health
errors
latency
resource pressure
security signals
61. Not required:
user behavioral analytics
62. Hard rule.
63. Observability Gate
#![allow(unused)] fn main() { pub struct ObservabilityReadiness { pub health_signals: BTreeSet<HealthSignalId>, pub alert_rules: Vec<AlertRuleRef>, pub dashboards: Vec<DashboardRef>, } }
64. Dashboards Are Convenience
Not authority.
65. Hard rule.
66. Operational Readiness
Requires:
service owner
on-call coverage
runbooks
rollback procedure
incident escalation
67. Part 104.
68. No Ownerless Production Release
Hard rule.
69. On-Call Readiness
#![allow(unused)] fn main() { pub struct OnCallReadiness { pub primary_covered: bool, pub secondary_covered: bool, pub escalation_policy: EscalationPolicyId, } }
70. Coverage gap blocks high-risk launch.
71. Hard rule.
72. Runbook Readiness
At minimum:
deploy
rollback/forward fix
incident
DR
support
73. Runbook version tied to release where relevant.
74. Hard rule.
75. Support Readiness
For user-facing release:
known issues
support procedures
diagnostic references
76. No private content access requirement.
77. Hard rule.
78. Residency Readiness
Part 103.
Check:
primary region
backup region
processing region
new providers
cross-border implications
79. Cheaper/faster region cannot bypass residency.
80. Hard rule.
81. Compliance Readiness
Part 95.
Check required controls.
82. Compliance readout is evidence, not marketing badge.
83. Hard rule.
84. Federation Readiness
If protocol/federation changes:
peer compatibility
grace period
fallback semantics
capability negotiation
85. No assumption every peer upgrades together.
86. Hard rule.
87. Production Certification
Certification summarizes mandatory readiness.
88. Certification Record
#![allow(unused)] fn main() { pub struct ProductionCertification { pub certification_id: CertificationId, pub release: ReleaseId, pub requirements: Vec<ReadinessEvidence>, pub state: CertificationState, pub policy_version: ReleaseGovernancePolicyVersion, } }
89. Certification State
#![allow(unused)] fn main() { pub enum CertificationState { Pending, Certified, CertifiedWithExceptions, Blocked, Revoked, } }
90. CertifiedWithExceptions
Explicit.
91. Not equal Certified.
92. Hard rule.
93. Certification Authority
Scoped role.
94. No single universal approver.
95. Hard rule.
96. Cross-Domain Signoff
High-risk releases may require:
service owner
security reviewer
privacy reviewer
release approver
operations
97. Part 104 separation of duties applies.
98. Hard rule.
99. Certification Threshold
#![allow(unused)] fn main() { pub struct CertificationThreshold { pub required_domains: BTreeSet<ReadinessDomain>, pub required_roles: BTreeSet<OperationalRole>, pub distinct_principals: bool, } }
100. Distinct principals required where policy says.
101. Hard rule.
102. Go/No-Go Decision
Separate from certification.
103. Why
A release can be technically certified but operational conditions may make launch unsafe now.
Examples:
regional incident
capacity shortage
on-call gap
change freeze
provider outage
104. Hard rule.
105. Go/No-Go Inputs
certification
current incidents
capacity
change calendar
on-call
regional health
dependency health
106. No user engagement metrics.
107. Hard rule.
108. Go/No-Go Decision
#![allow(unused)] fn main() { pub enum GoNoGoDecision { Go(LaunchAuthorization), Hold(HoldReason), NoGo(NoGoReason), } }
109. Hold
Temporary conditions.
110. NoGo
Release not acceptable.
111. Hard rule.
112. Launch Authorization
#![allow(unused)] fn main() { pub struct LaunchAuthorization { pub release: ReleaseId, pub rollout_plan: ChangePlanId, pub valid_from: Timestamp, pub expires_at: Timestamp, } }
113. Time-Bounded
Hard rule.
114. No Permanent "Approved For Production Forever"
Preferred hard rule.
115. Go Decision Authority
Uses approved release-governance policy.
116. No individual intuition alone.
117. Hard rule.
118. Hold Reasons
#![allow(unused)] fn main() { pub enum HoldReason { CapacityInsufficient, ActiveIncident, CoverageGap, DependencyUnhealthy, ChangeFreeze, EvidenceStale, } }
119. NoGo Reasons
#![allow(unused)] fn main() { pub enum NoGoReason { CertificationBlocked, SecurityFailure, PrivacyFailure, CompatibilityFailure, MigrationUnsafe, RecoveryUnsafe, ResidencyViolation, } }
120. Typed/Explainable
Hard rule.
121. Release Governance Policy
#![allow(unused)] fn main() { pub struct ReleaseGovernancePolicy { pub version: ReleaseGovernancePolicyVersion, pub requirements: Vec<ReadinessRequirement>, pub certification_thresholds: Vec<CertificationThreshold>, pub launch_rules: Vec<LaunchRule>, } }
122. Signed/versioned.
123. Anti-rollback.
124. Hard rule.
125. Policy Precedence
hard security/privacy invariant
> release governance policy
> service-specific requirement
> launch preference
126. No preference can weaken hard gate.
127. Hard rule.
128. Launch Window
Optional.
129. LaunchWindow
#![allow(unused)] fn main() { pub struct LaunchWindow { pub starts_at: Timestamp, pub ends_at: Timestamp, pub scope: ChangeScope, } }
130. Window Does Not Grant Authority
Hard rule.
131. Maintenance Window
Useful for risky migrations.
132. Emergency security release can bypass scheduling only.
133. Cannot bypass certification integrity gates.
134. Hard rule.
135. Progressive Launch
Part 107.
136. Production launch is staged.
Recommended:
canary
small batch
regional
broad
GA
137. No instant global rollout for high-risk release.
138. Hard rule.
139. Progressive Exposure
Exposure measured in infrastructure scope.
140. Examples:
instances
regions
shards
platform versions
141. Not user behavioral cohorts.
142. Hard rule.
143. Client Release Exposure
Allowed selectors:
platform
architecture
existing version
local random rollout bucket
144. Forbidden:
engagement score
political interest
message frequency
social graph
145. Hard rule.
146. Launch Gate
Each rollout phase has entry/exit gates.
147. Reuses Part 107 SafetyGate.
148. Hard rule.
149. Launch Readiness Snapshot
Before launch freeze evidence.
#![allow(unused)] fn main() { pub struct LaunchReadinessSnapshot { pub release: ReleaseId, pub certification: CertificationId, pub dependency_snapshot: InventorySnapshotId, pub desired_state: DesiredStateId, pub generated_at: CoarseTimestamp, } }
150. Immutable.
151. Hard rule.
152. Evidence Freshness
Readiness evidence expires.
153. Example:
security scan: hours/day
capacity check: minutes
backup freshness: policy-based
154. Hard rule.
155. Stale Evidence
State becomes Unknown.
156. No launch on stale mandatory evidence.
157. Hard rule.
158. Exception Handling
Some non-hard requirements may be excepted.
159. Release Exception
#![allow(unused)] fn main() { pub struct ReleaseReadinessException { pub requirement: ReadinessRequirementId, pub rationale: ExceptionReasonCode, pub compensating_controls: Vec<ControlId>, pub expires_at: Timestamp, pub approvals: ApprovalBundle, } }
160. Exception ≠ Pass
Hard rule.
161. No Exception For Hard Invariants
Examples:
invalid signature
known revoked artifact
disabled encryption
tenant isolation failure
162. Hard rule.
163. Exception Scope
Narrow.
164. Time bounded.
165. Audited.
166. Hard rule.
167. Certification Revocation
Can occur after certification.
Examples:
new critical vulnerability
artifact compromise
privacy regression
dependency incompatibility
168. Revocation Record
#![allow(unused)] fn main() { pub struct CertificationRevocation { pub certification: CertificationId, pub reason: CertificationRevocationReason, pub at: Timestamp, } }
169. Revoked Certification Cannot Launch
Hard rule.
170. Launch Revocation
If release already partially launched:
hold
abort
rollback/forward fix
171. Hard rule.
172. Operational Acceptance
After launch, service owner/operator formally accepts production state.
173. Operational Acceptance Record
#![allow(unused)] fn main() { pub struct OperationalAcceptance { pub release: ReleaseId, pub service: ServiceId, pub state: OperationalAcceptanceState, pub evidence: Vec<EvidenceRef>, } }
174. Acceptance State
#![allow(unused)] fn main() { pub enum OperationalAcceptanceState { Pending, Accepted, AcceptedWithFollowUps, Rejected, } }
175. Acceptance Is Post-Launch
Not pre-launch approval.
176. Hard rule.
177. Operational Acceptance Checks
deployment converged
alerts healthy
on-call ready
runbooks correct
SLO stable
no critical drift
178. Hard rule.
179. AcceptedWithFollowUps
Only noncritical items.
180. Follow-ups tracked with due dates.
181. No hidden technical debt.
182. Hard rule.
183. Post-Launch Verification
Part 107.
184. Check:
health
security
privacy
capacity
drift
inventory
vulnerabilities
185. Hard rule.
186. Soak Period
Required for some releases.
187. Example:
30 minutes
6 hours
24 hours
188. No GA before soak if policy requires.
189. Hard rule.
190. Post-Launch Regression
May trigger:
hold expansion
rollback
forward fix
incident
191. No silent continuation.
192. Hard rule.
193. Launch Completion
A release is fully launched only when:
target scope reached
mandatory soak passed
post-launch gates pass
operational acceptance complete
194. Hard rule.
195. Release Final State
#![allow(unused)] fn main() { pub enum ReleaseLaunchState { NotStarted, Canary, Expanding, Soaking, Accepted, Held, Aborted, RolledBack, } }
196. No "Released" Boolean
Hard rule.
197. Release Freeze
A release may be frozen.
198. Freeze reasons:
incident
security issue
dependency instability
capacity issue
199. Frozen release cannot expand.
200. Hard rule.
201. Release Rollback
Uses Part 107/99 safety floors.
202. Cannot rollback to:
revoked
vulnerable
incompatible
privacy-weakened
release.
203. Hard rule.
204. Forward Fix
For irreversible migration.
205. Must be pre-planned where possible.
206. Hard rule.
207. Launch Runbook
Release-specific or class-specific.
Contains:
phase sequence
gates
abort triggers
rollback
support escalation
208. No secret values.
209. Hard rule.
210. Launch Commander
For large/high-risk launches.
211. Coordination role.
212. Does not gain universal technical authority.
213. Hard rule.
214. Launch Roles
#![allow(unused)] fn main() { pub enum LaunchRole { ReleaseOwner, OperationsLead, SecurityReviewer, PrivacyReviewer, LaunchCommander, RollbackAuthority, } }
215. Scoped.
216. Hard rule.
217. Launch Communication
Internal notifications include:
release
scope
phase
status
incident/rollback links
218. No user content.
219. Hard rule.
220. User-Facing Communication
If release causes:
maintenance
required upgrade
known outage
communicate truthfully.
221. No manipulative urgency.
222. Hard rule.
223. Release Notes
Human-readable.
224. Security-sensitive details may be staged per disclosure policy.
225. Hard rule.
226. Production Certification Evidence
Can include signed digests of:
test manifest
SBOM
vulnerability report
control evaluation
simulation result
readiness snapshot
227. Avoid bulky duplicate evidence.
228. Hard rule.
229. Certification Evidence Bundle
#![allow(unused)] fn main() { pub struct CertificationEvidenceBundle { pub release: ReleaseId, pub artifact_digest_root: Digest, pub readiness_digest: Digest, pub approvals_digest: Digest, } }
230. Signed.
231. Hard rule.
232. Release Transparency
High-assurance releases may publish:
release digest
signature
SBOM hash
security advisory link
233. No internal topology.
234. Hard rule.
235. Launch Audit
Part 94.
Audit:
certification issued/revoked
go/no-go decision
exception approved
launch started
abort/rollback
acceptance completed
236. Not every metric sample.
237. Hard rule.
238. Compliance Integration
Part 95.
Controls:
certification requirements satisfied
approvals independent
evidence fresh
exceptions valid
operational acceptance complete
239. Hard rule.
240. Organizational Governance Integration
Part 104.
Roles/approvals/SoD enforced.
241. Hard rule.
242. Desired-State Integration
Part 105.
Release target is signed desired state.
243. Launch complete only after convergence.
244. Hard rule.
245. Inventory Integration
Part 106.
Readiness uses current dependency/inventory snapshot.
246. Stale inventory lowers confidence/blocks high-risk launch.
247. Hard rule.
248. Change Impact Integration
Part 107.
Impact/simulation/rollout plan mandatory inputs.
249. Hard rule.
250. Vulnerability Integration
Part 98.
New critical vulnerability can revoke certification.
251. Hard rule.
252. Update Integration
Part 99.
Release metadata/signature/security epoch aligned.
253. Hard rule.
254. DR Integration
Part 100.
Recovery compatibility validated.
255. Hard rule.
256. Capacity Integration
Part 101.
Current launch window capacity verified.
257. Hard rule.
258. FinOps Integration
Part 102.
Cost forecast may inform launch but never override safety.
259. Hard rule.
260. Geographic Governance Integration
Part 103.
Residency/cross-border impacts verified.
261. Hard rule.
262. SOC Integration
Part 97.
Security signals can freeze/revoke launch.
263. SOC cannot unilaterally certify release.
264. Hard rule.
265. Incident Integration
Part 96.
Active relevant incident may hold launch.
266. Emergency release path still uses release integrity gates.
267. Hard rule.
268. Emergency Release
Sometimes urgent security patch.
269. Emergency Readiness Policy
May reduce:
soak duration
number of rollout phases
noncritical documentation requirements
270. Cannot reduce:
signature verification
artifact provenance
hard security/privacy gates
rollback/forward-fix awareness
271. Hard rule.
272. Emergency Certification
#![allow(unused)] fn main() { pub struct EmergencyCertification { pub release: ReleaseId, pub reason: EmergencyReasonCode, pub retained_gates: BTreeSet<ReadinessRequirementId>, pub omitted_noncritical: BTreeSet<ReadinessRequirementId>, pub expires_at: Timestamp, } }
273. Omitted requirements documented.
274. Post-launch completion required.
275. Hard rule.
276. Launch Readiness Score
Avoid one opaque score.
277. Use domain matrix.
278. Example:
Security: Pass
Privacy: Pass
Capacity: Pass
DR: Unknown
Operations: Pass
279. Better than 87/100.
280. Hard rule.
281. Certification Matrix
#![allow(unused)] fn main() { pub struct ReadinessMatrix { pub release: ReleaseId, pub domains: BTreeMap<ReadinessDomain, ReadinessEvidenceState>, } }
282. Critical failures visible.
283. Hard rule.
284. Release Readiness API
#![allow(unused)] fn main() { pub trait ReleaseReadinessService { fn evaluate( &self, candidate: &ReleaseCandidate, ) -> Result<ReadinessMatrix, ReleaseGovernanceError>; fn certify( &self, release: ReleaseId, ) -> Result<ProductionCertification, ReleaseGovernanceError>; } }
285. Go/No-Go Service
#![allow(unused)] fn main() { pub trait GoNoGoService { fn decide( &self, certification: CertificationId, launch_context: LaunchContext, ) -> Result<GoNoGoDecision, ReleaseGovernanceError>; } }
286. Operational Acceptance Service
#![allow(unused)] fn main() { pub trait OperationalAcceptanceService { fn accept( &self, release: ReleaseId, service: ServiceId, evidence: Vec<EvidenceRef>, ) -> Result<OperationalAcceptance, ReleaseGovernanceError>; } }
287. No General Override API
Hard rule.
288. Launch Context
#![allow(unused)] fn main() { pub struct LaunchContext { pub active_incidents: Vec<IncidentRef>, pub capacity: CapacitySnapshotRef, pub coverage: CoverageState, pub dependency_health: DependencyHealthSnapshot, pub change_window: Option<LaunchWindow>, } }
289. No User Behavior Context
Hard rule.
290. Release Governance Errors
#![allow(unused)] fn main() { pub enum ReleaseGovernanceError { CandidateInvalid, EvidenceMissing, EvidenceStale, MandatoryGateFailed, CertificationBlocked, CertificationRevoked, ApprovalMissing, ActiveIncident, CapacityInsufficient, CoverageGap, LaunchWindowInvalid, RollbackUnsafe, OperationalAcceptanceFailed, Unauthorized, Internal, } }
291. Observability
Safe release metrics:
certification duration
hold count
abort rate
rollback rate
post-launch verification time
292. Aggregate by:
service
release class
risk class
293. Forbidden:
per-user engagement after release
operator performance leaderboard
private-content quality checks
294. Hard rule.
295. Release Governance SLOs
Examples:
readiness evidence freshness
certification latency
go/no-go availability
rollback readiness
operational acceptance completion
296. Security SLO
0 uncertified artifact launched
0 revoked certification launched
0 mandatory hard gate bypass
297. Privacy SLO
0 behavioral user targeting in rollout
0 privacy regression hidden by aggregate score
0 private-content release validation
298. Failure Modes
evidence source unavailable
certification stale
dependency changes after certification
launch window incident
post-launch regression
299. Evidence Source Unavailable
Mandatory evidence = Unknown.
300. Certification blocked/held.
301. Hard rule.
302. Certification Stale
Re-evaluate.
303. No launch using expired snapshot.
304. Hard rule.
305. Dependency Change After Certification
Invalidate affected readiness domains.
306. Reassess impact.
307. Hard rule.
308. Incident During Launch Window
Hold expansion.
309. Depending relevance/severity:
continue canary
hold
abort
rollback
310. Explicit policy.
311. Hard rule.
312. Post-Launch Regression
Freeze release.
313. Trigger rollback/forward-fix/incident.
314. Hard rule.
315. Testing
Need release-governance testkit.
316. Test Scenarios
normal backend release
client release
DB migration
emergency security patch
federation protocol update
317. Artifact Test
Certified digest equals launched digest.
318. Hard rule.
319. Evidence Test
Stale mandatory evidence blocks launch.
320. Unknown Test
Unknown != Pass.
321. Exception Test
Exception remains explicit.
322. Hard-Invariant Test
Cannot exception invalid signature/privacy isolation failure.
323. Security Test
Failed security domain => certification blocked.
324. Privacy Test
New stable telemetry identifier => NoGo unless policy legitimately updated and hard invariant permits.
325. Compatibility Test
Unsupported mixed-version matrix blocks rollout.
326. Migration Test
Forward-fix-only migration disclosed.
327. Capacity Test
Insufficient launch capacity => Hold.
328. On-Call Test
Coverage gap blocks high-risk launch.
329. DR Test
Incompatible restore path blocks launch.
330. Residency Test
Forbidden processing region => NoGo.
331. Go/No-Go Test
Certified release can still Hold on active incident.
332. Certification Revocation Test
Revoked candidate cannot launch.
333. Canary Test
Infrastructure-scoped exposure only.
334. User Privacy Test
No user-behavior selector accepted.
335. Acceptance Test
Launch not final until operational acceptance.
336. Rollback Test
Revoked previous release cannot be rollback target.
337. Emergency Test
Emergency path retains hard gates.
338. Audit Test
Certification/go-no-go/exception signatures verify.
339. Fuzzing
Fuzz:
readiness evidence
certification record
exception
launch context
go/no-go decision
340. Property Tests
Properties:
mandatory Fail or Unknown can never produce Certified
revoked certification can never produce Go
launch authorization can never reference an artifact not covered by certification
behavioral user identity can never become a valid rollout selector
341. Formal Verification Targets
Strong candidates:
candidate/certification state machine
go/no-go semantics
exception rules
launch acceptance flow
342. Kani Candidate
readiness/certification invariants.
343. TLA+ Candidate
candidate → readiness → certify → go → launch → verify → accept/rollback.
344. Loom Candidate
concurrent certification revocation + launch authorization + rollout start.
345. Performance
Readiness aggregation can run asynchronously.
346. Go/no-go decision should use precomputed fresh evidence.
347. No full system rescan at button press.
348. Hard rule.
349. Evidence Cache
Version/freshness bound.
350. Security/privacy evidence stricter TTL.
351. Hard rule.
352. Storage
Separate:
release candidates
readiness evidence
certifications
exceptions
launch authorizations
acceptance records
353. No user engagement warehouse.
354. Hard rule.
355. Partitioning
By:
release
service
environment
region
tenant-managed scope
356. No user partition.
357. Hard rule.
358. Crate Layout
Recommended:
crates/
├── siar-release-governance-core/
├── siar-release-readiness/
├── siar-production-certification/
├── siar-go-no-go/
├── siar-launch-policy/
├── siar-launch-exception/
├── siar-operational-acceptance/
├── siar-release-evidence/
├── siar-release-governance-observability/
└── siar-release-governance-testkit/
359. siar-release-governance-core
Owns:
readiness domains
certification states
launch states
errors
360. siar-release-readiness
Collects/evaluates evidence.
361. siar-production-certification
Builds signed production certification.
362. siar-go-no-go
Current operational decision logic.
363. siar-launch-policy
launch windows/progressive rollout/hard gates.
364. siar-launch-exception
time-bounded readiness exceptions.
365. siar-operational-acceptance
post-launch service acceptance.
366. siar-release-evidence
immutable evidence bundles/digests.
367. siar-release-governance-observability
aggregate release-process health only.
368. siar-release-governance-testkit
readiness/certification/launch/privacy tests.
369. Security, Privacy & Correctness Invariants
Mandatory:
1. Production certification applies to exact immutable release artifacts, source/provenance, policy, and desired-state references; mutable tags or future rebuilds can never inherit certification.
2. Release readiness is represented as domain-specific Pass/Fail/Unknown/ExceptionApproved evidence; mandatory Fail or Unknown states can never be hidden inside an aggregate readiness score.
3. Go/no-go is separate from technical certification so current incidents, capacity, on-call coverage, dependency health, or change freezes can hold an otherwise certified release.
4. Security, privacy, artifact integrity, tenant isolation, cryptographic trust, and other hard invariants cannot be waived by ordinary release exceptions or emergency scheduling pressure.
5. Progressive launch uses infrastructure, platform, version, region, shard, or local-random rollout boundaries and never behavioral user cohorts, social graphs, private-content categories, or stable tracking identities.
6. Certification, go/no-go authority, launch execution, rollback authority, and operational acceptance are separate scoped roles governed by separation-of-duties policy.
7. Emergency security releases may reduce noncritical timing/documentation steps but never bypass artifact signatures, provenance, hard security/privacy gates, or known rollback/forward-fix constraints.
8. Certification evidence has explicit freshness; stale evidence becomes Unknown and cannot authorize a high-risk launch.
9. Launch completion requires target-scope convergence, mandatory soak/verification, and operational acceptance; starting or finishing deployment commands alone can never mean the release is accepted.
10. New vulnerabilities, artifact compromise, privacy regressions, dependency changes, or critical incidents can revoke/hold certification or expansion even after initial approval.
11. Release-governance telemetry and evidence contain aggregate technical/process data only and cannot become user-engagement targeting, private-content validation, or employee-performance surveillance.
12. Release governance integrates with supply chain, vulnerability management, updates, DR, capacity, FinOps, residency, organizational governance, desired state, inventory, change impact, audit, compliance, SOC, and incidents without creating a bypass around hard security/privacy rules.
370. Initial Production Scope
Implement first:
typed ReleaseCandidate/ReadinessDomain
mandatory readiness requirements
Pass/Fail/Unknown/ExceptionApproved evidence
artifact/provenance/SBOM readiness
security/privacy readiness gates
compatibility matrix
migration readiness
capacity/DR/observability readiness
owner/on-call/runbook readiness
residency/compliance/federation readiness
production certification
certification revocation
go/no-go decision
time-bounded launch authorization
progressive rollout integration
launch exceptions
post-launch soak/verification
operational acceptance
release evidence bundle
audit/compliance integration
privacy-safe release metrics
release-governance testkit
Then add:
service-class-specific certification profiles
cross-federation coordinated launch attestations
independent reproducible-build certification
formal certification/go-no-go verification
automated evidence freshness orchestration
machine-generated readiness summaries constrained by typed evidence
371. Definition of Done
Part 108 is complete when:
- certification applies to exact immutable artifacts
- readiness is domain-specific and explainable
- mandatory Fail/Unknown blocks certification
- hard invariants cannot be excepted
- go/no-go considers current operational state
- certification and launch authority are separate
- launch authorization expires
- progressive rollout uses infrastructure scopes
- no behavioral user targeting exists
- emergency releases retain hard gates
- stale evidence invalidates readiness
- launch completion requires soak/verification/acceptance
- certifications can be revoked
- operational acceptance is explicit
- readiness/certification/privacy/fuzz/formal tests are specified
372. Final Architecture
RELEASE CANDIDATE
│
▼
READINESS MATRIX
│
┌──────────────┼──────────────┐
│ │ │
SECURITY PRIVACY OPERATIONS
│ │ │
└──────────────┼──────────────┘
▼
PRODUCTION CERTIFICATION
│
▼
GO / NO-GO
│
┌──────────┼──────────┐
│ │ │
GO HOLD NO-GO
│
▼
PROGRESSIVE LAUNCH
│
▼
SOAK / VERIFY
│
▼
OPERATIONAL ACCEPTANCE
Release-governance safety model:
exact artifacts
+
domain-specific readiness evidence
+
independent certification
+
current-state go/no-go
+
progressive rollout
+
hard-gate enforcement
+
post-launch verification
+
operational acceptance
not:
the build passed, the deadline is today, so ship globally and watch user metrics
373. Final Principle
A release is ready for production only when the system can prove that it is build-trusted, security-safe, privacy-safe, operationally supportable, compatible, recoverable, and launchable under current conditions.
The correct model is:
verify the artifact
+
prove readiness by domain
+
certify independently
+
decide go/no-go using current operations
+
launch progressively
+
hold or abort on uncertainty
+
verify after deployment
+
accept production explicitly
+
never use private user behavior as launch authority
This architecture gives SIAR a privacy-preserving launch-governance foundation for release readiness, production certification, go/no-go authority, progressive rollout, exceptions, emergency release, post-launch verification, and operational acceptance while preserving the anonymity, local-first, least-authority, and anti-surveillance guarantees established across Parts 34–107.