diff --git a/.decapod/governance/plan.json b/.decapod/governance/plan.json
deleted file mode 100644
index 0a395f7..0000000
--- a/.decapod/governance/plan.json
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-  "schema_version": "1.0.0",
-  "title": "Thin Dactyl SQLite and Neon application driver",
-  "intent": "Ship one congruent read(sql, params) and write(sql, params) facade for read/write-heavy applications over local SQLite and Vercel Neon. Use private adapters, typed values, normalized rows, affected counts, and typed errors; exclude schema administration, transactions, query analysis or rewriting, retries, analytics, and business intelligence.",
-  "state": "APPROVED",
-  "todo_ids": [
-    "code_01kzb14pzzgekyfs"
-  ],
-  "proof_hooks": [
-    "cargo fmt --all -- --check",
-    "cargo clippy --all-targets --all-features -- -D warnings",
-    "cargo test --all-features",
-    "cargo test"
-  ],
-  "unknowns": [],
-  "human_questions": [],
-  "stop_conditions": [
-    "Stop if the SQLite and Neon read/write contracts cannot remain congruent without adding backend administration or query intelligence."
-  ],
-  "unresolved_contradictions": [],
-  "deferred_questions": [],
-  "constraints": {
-    "forbidden_paths": [],
-    "file_touch_budget": null
-  },
-  "phases": [],
-  "updated_at": "1786003599Z"
-}
\ No newline at end of file
diff --git a/.decapod/governance/trajectory.json b/.decapod/governance/trajectory.json
deleted file mode 100644
index 9a08a3a..0000000
--- a/.decapod/governance/trajectory.json
+++ /dev/null
@@ -1,203 +0,0 @@
-{
-  "schema_version": "1.1.0",
-  "run_id": "validation_01KZB2S1AFQ708TDRS6BAR17TH",
-  "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-  "task_id": "code_01kzb14pzzgekyfs",
-  "original_intent": "Produce proof artifacts for a repository validation completion.",
-  "derived_intent": "Run the bounded validation gates and bind the successful receipt to a trajectory.",
-  "destination": "validation completion",
-  "current_phase": "validation",
-  "next_transitions": [
-    "publish"
-  ],
-  "active_boundaries": [
-    "Repository validation and tracked proof artifacts"
-  ],
-  "repo_scope": [
-    ".decapod/governance/trajectory.json",
-    ".decapod/governance/validation.json"
-  ],
-  "inspected_files": [],
-  "modified_files": [
-    ".decapod/governance/trajectory.json",
-    ".decapod/governance/validation.json"
-  ],
-  "declared_commands": [
-    "decapod validate"
-  ],
-  "tool_calls": [],
-  "checks": [
-    {
-      "name": "decapod validate",
-      "status": "passed"
-    }
-  ],
-  "evidence": [
-    "validation epoch ve_df73bc67cd796539 completed with zero failures",
-    "validation epoch ve_f4d27fb540d3293f completed with zero failures"
-  ],
-  "shortcut_risk_signals": [],
-  "unresolved_assumptions": [],
-  "proof_status": "passed",
-  "verdicts": {
-    "intent_alignment": "supported",
-    "boundary_discipline": "supported",
-    "shortcut_risk": "supported",
-    "completion_proof": "supported"
-  },
-  "artifact_hash": "sha256:29be254e0d8124eeed6b0522b83978dc186078370eae86ac9e05c9d22bfa8413",
-  "custody": {
-    "schema_version": "1.0.0",
-    "intents": {
-      "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH": {
-        "id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "raw_intent": "Produce proof artifacts for a repository validation completion.",
-        "refined_intent": "Run the bounded validation gates and bind the successful receipt to a trajectory.",
-        "acceptance_criteria": [],
-        "constraints": [
-          ".decapod/governance/trajectory.json",
-          ".decapod/governance/validation.json"
-        ],
-        "assumptions": [],
-        "boundaries": [
-          "Repository validation and tracked proof artifacts"
-        ],
-        "out_of_scope": [],
-        "proof_requirements": [],
-        "status": "refined",
-        "created_sequence": 1,
-        "updated_sequence": 3
-      }
-    },
-    "events": [
-      {
-        "sequence": 2,
-        "event_id": "event:2",
-        "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "kind": "created"
-      },
-      {
-        "sequence": 3,
-        "event_id": "event:3",
-        "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "kind": "refined"
-      },
-      {
-        "sequence": 4,
-        "event_id": "event:4",
-        "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "kind": "trajectory_step_recorded",
-        "detail": "trajectory:validation_01KZB2S1AFQ708TDRS6BAR17TH"
-      },
-      {
-        "sequence": 5,
-        "event_id": "event:5",
-        "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "kind": "trajectory_step_recorded",
-        "detail": "trajectory:validation_01KZB2S1AFQ708TDRS6BAR17TH"
-      },
-      {
-        "sequence": 6,
-        "event_id": "event:6",
-        "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "kind": "trajectory_step_recorded",
-        "detail": "trajectory:validation_01KZB2S1AFQ708TDRS6BAR17TH"
-      },
-      {
-        "sequence": 7,
-        "event_id": "event:7",
-        "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "kind": "trajectory_step_recorded",
-        "detail": "trajectory:validation_01KZB2S1AFQ708TDRS6BAR17TH"
-      }
-    ],
-    "trajectories": {
-      "validation_01KZB2S1AFQ708TDRS6BAR17TH": {
-        "id": "validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "intent_id": "intent:validation_01KZB2S1AFQ708TDRS6BAR17TH",
-        "evidence_only": true,
-        "steps": [
-          {
-            "sequence": 4,
-            "action": "validation",
-            "command": "decapod validate",
-            "scope": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json"
-            ],
-            "observations": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json",
-              "validation epoch ve_f4d27fb540d3293f completed with zero failures"
-            ],
-            "proof_refs": [
-              "decapod validate"
-            ],
-            "validation_findings": [],
-            "custody_event_id": "event:4"
-          },
-          {
-            "sequence": 5,
-            "action": "validation",
-            "command": "decapod validate",
-            "scope": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json"
-            ],
-            "observations": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json",
-              "validation epoch ve_f4d27fb540d3293f completed with zero failures"
-            ],
-            "proof_refs": [
-              "decapod validate"
-            ],
-            "validation_findings": [],
-            "custody_event_id": "event:5"
-          },
-          {
-            "sequence": 6,
-            "action": "validation",
-            "command": "decapod validate",
-            "scope": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json"
-            ],
-            "observations": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json",
-              "validation epoch ve_df73bc67cd796539 completed with zero failures"
-            ],
-            "proof_refs": [
-              "decapod validate"
-            ],
-            "validation_findings": [],
-            "custody_event_id": "event:6"
-          },
-          {
-            "sequence": 7,
-            "action": "validation",
-            "command": "decapod validate",
-            "scope": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json"
-            ],
-            "observations": [
-              ".decapod/governance/trajectory.json",
-              ".decapod/governance/validation.json",
-              "validation epoch ve_df73bc67cd796539 completed with zero failures"
-            ],
-            "proof_refs": [
-              "decapod validate"
-            ],
-            "validation_findings": [],
-            "custody_event_id": "event:7"
-          }
-        ]
-      }
-    },
-    "summaries": {},
-    "knowledge_candidates": [],
-    "next_sequence": 7
-  }
-}
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index df745d0..45518d1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -144,6 +144,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Initial commit
 ## Unreleased
 
+## [0.4.0](https://github.com/DecapodLabs/dactyl/compare/dactyl-db-v0.3.0...dactyl-db-v0.4.0) - 2026-08-06
+
+### Added
+
+- make dactyl a thin application read write driver ([#48](https://github.com/DecapodLabs/dactyl/pull/48))
+
+### Other
+
+- Update Decapod version in README
+
 - *(dactyl-db)* reduce the public contract to congruent application `read` /
   `write` operations for SQLite and Neon, remove the proc-macro/query-analysis
   layer, and replace the rusqlite facade with a private SQLite C-API driver
diff --git a/Cargo.lock b/Cargo.lock
index c918395..284408a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -142,7 +142,7 @@ dependencies = [
 
 [[package]]
 name = "dactyl-db"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "axum",
  "libsqlite3-sys",
diff --git a/Cargo.toml b/Cargo.toml
index de353a7..13df3f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dactyl-db"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 rust-version = "1.75"
 license = "MIT"