durable-workflow · rmcdaniel · Sep 1, 2026 · Sep 1, 2026
diff --git a/.github/workflows/crates-io-maintenance.yml b/.github/workflows/crates-io-maintenance.yml
@@ -65,7 +65,7 @@ jobs:
       - name: Install Rust 1.86
         uses: dtolnay/rust-toolchain@4d407b29186a635f0cc27475ef0bc0ae605a8866  # 1.86.0
 
-      - name: Audit discovery and exact prerelease installation
+      - name: Audit discovery and exact release installation
         run: >-
           python3 scripts/ci/maintain-crates-io.py audit
           --evidence crates-io-audit-evidence.json

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 2.0.0
+
+- Publish the stable Rust SDK qualified against the immutable Server `2.0.0`
+  artifact.
+
 ## 2.0.0-rc.39
 
 - Qualify this prerelease against the immutable Server `2.0.0-rc.68` artifact

diff --git a/Cargo.toml b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "durable-workflow"
-version = "2.0.0-rc.39"
+version = "2.0.0"
 edition = "2021"
 description = "First-party Rust SDK for Durable Workflow workers and clients"
 license = "MIT"
@@ -14,10 +14,10 @@ categories = ["api-bindings", "asynchronous"]
 include = ["/src/**", "/schema/**", "/examples/**", "/Cargo.toml", "/README.md", "/CHANGELOG.md", "/LICENSE"]
 
 [package.metadata.durable-workflow]
-product-train = "2.0.0-rc.39"
+product-train = "2.0.0"
 compatibility-authority = "protocol-manifests"
-supported-server-versions = "2.0.0-rc.68"
-qualified-server-version = "2.0.0-rc.68"
+supported-server-versions = "2.0.0"
+qualified-server-version = "2.0.0"
 worker-protocol-version = "1.19"
 server-worker-protocol-versions = ">=1.19,<2.0"
 portable-worker-affinity-minimum-worker-protocol-version = "1.18"

diff --git a/README.md b/README.md
@@ -951,6 +951,5 @@ the authoritative source for the `durable-workflow` crate and its Rust API
 documentation.
 
 Crate releases follow semantic versioning and are tagged with the exact crate
-version. During the 2.0 beta, the crate advances with the synchronized product
-train. After stable 2.0, fixes, additive capabilities, and breaking changes use
-ordinary patch, minor, and major progression respectively.
+version. Starting with stable 2.0, fixes, additive capabilities, and breaking
+changes use ordinary patch, minor, and major progression respectively.
diff --git a/docs/index.html b/docs/index.html
@@ -9,7 +9,7 @@
   <title>Durable Workflow for Rust</title>
   <script type="module" src="/analytics/analytics.js"></script>
 </head>
-<body class="dw-landing" data-landing-contract="general-rust-first" data-source-version="2.0.0-rc.39" data-rust-version="1.86">
+<body class="dw-landing" data-landing-contract="general-rust-first" data-source-version="2.0.0" data-rust-version="1.86">
   <header class="dw-nav" data-landing-region="primary-navigation">
     <a class="dw-brand" href="/" aria-label="Durable Workflow Rust home">
       <span class="dw-brand__mark" aria-hidden="true">DW</span>
@@ -24,11 +24,11 @@
 
   <main>
     <header class="dw-page-heading" data-journey="general">
-      <p class="dw-kicker">Rust SDK · 2.0 prerelease</p>
+      <p class="dw-kicker">Rust SDK · 2.0 stable</p>
       <h1>Durable Workflow Rust SDK</h1>
       <p data-landing-lead>Author deterministic workflows and activities, run workers, and control workflow executions with the first-party Rust SDK.</p>
       <p class="dw-version">
-        <strong>Supported prerelease channel</strong>
+        <strong>Supported 2.0 release</strong>
         <span>Resolved by the public compatibility authority</span>
         <span>Requires Rust 1.86+</span>
       </p>
@@ -57,8 +57,8 @@ <h3>Confirm the Rust toolchain</h3>
         <li>
           <span class="dw-step-number">2</span>
           <div>
-            <h3>Install the prerelease channel</h3>
-            <p>Let the public compatibility authority select the qualified crate in the 2.0 RC line.</p>
+            <h3>Install the supported SDK</h3>
+            <p>Let the public compatibility authority select the supported crate in the 2.0 line.</p>
             <pre><code>curl -fsSL https://durable-workflow.com/install-sdk.sh | sh -s -- rust</code></pre>
           </div>
         </li>
@@ -104,7 +104,7 @@ <h2 id="cloud-title">Durable Workflow Cloud</h2>
 
   <footer>
     <span>Durable Workflow Rust SDK</span>
-    <span>Explicit 2.0 prerelease documentation</span>
+    <span>Stable 2.0 documentation</span>
   </footer>
 </body>
 </html>
diff --git a/scripts/ci/maintain-crates-io.py b/scripts/ci/maintain-crates-io.py
@@ -129,6 +129,13 @@ def is_2_0_release_candidate(version: str) -> bool:
     )
 
 
+def is_supported_2_0_release(version: str) -> bool:
+    major, minor, patch, prerelease = parse_semver(version)
+    return (major, minor, patch) == (2, 0, 0) and (
+        prerelease is None or prerelease.startswith("rc.")
+    )
+
+
 def load_authority(
     plan_path: Path, manifest_path: Path
 ) -> tuple[dict[str, Any], str, str]:
@@ -168,12 +175,12 @@ def load_authority(
         raise MaintenanceError(
             "authority_mismatch", "manifest and retirement plan name different packages"
         )
-    if not isinstance(current_version, str) or not is_2_0_release_candidate(
+    if not isinstance(current_version, str) or not is_supported_2_0_release(
         current_version
     ):
         raise MaintenanceError(
             "stable_release_not_authorized",
-            "registry maintenance requires the manifest to name an exact 2.0 release candidate",
+            "registry maintenance requires an exact supported 2.0 release",
         )
     return plan, current_version, hashlib.sha256(plan_bytes).hexdigest()
 
@@ -331,20 +338,20 @@ def registry_violations(
 
     exact = observation["current_exact_version"]
     if exact["state"] != "active":
-        violations.append(f"current_release_candidate_not_active:{current_version}")
+        violations.append(f"current_release_not_active:{current_version}")
     elif not exact.get("registry_response", {}).get("checksum"):
-        violations.append(
-            f"current_release_candidate_checksum_missing:{current_version}"
-        )
+        violations.append(f"current_release_checksum_missing:{current_version}")
     root = observation["crate_root"]
     if root["newest_version"] != current_version:
-        violations.append("crate_root_newest_version_is_not_current_release_candidate")
+        violations.append("crate_root_newest_version_is_not_current_release")
     if require_retired and root["default_version"] != current_version:
-        violations.append("crate_root_default_version_is_not_current_release_candidate")
+        violations.append("crate_root_default_version_is_not_current_release")
     for candidate in observation["release_candidates"]:
         if candidate["yanked"] is True:
             violations.append(f"release_candidate_yanked:{candidate['version']}")
-    if observation["stable_2_versions"]:
+    _, _, _, current_prerelease = parse_semver(current_version)
+    authorized_stable_versions = [current_version] if current_prerelease is None else []
+    if observation["stable_2_versions"] != authorized_stable_versions:
         violations.append("stable_2_release_exists_without_authorization")
     return violations
 
@@ -360,7 +367,7 @@ def base_evidence(
             "environment_variable": "CARGO_REGISTRY_TOKEN",
             "value_recorded": False,
         },
-        "current_release_candidate": current_version,
+        "current_release": current_version,
         "generated_at": utc_now(),
         "operation": operation,
         "outcome": "pending",
@@ -543,13 +550,13 @@ def verify_exact_install(
         if len(matches) != 1:
             raise MaintenanceError(
                 "exact_requirement_resolved_incorrectly",
-                "Cargo did not resolve the exact current release candidate",
+                "Cargo did not resolve the exact current release",
             )
         resolved = matches[0]
         if resolved.get("checksum") != expected_checksum:
             raise MaintenanceError(
                 "registry_checksum_mismatch",
-                "Cargo.lock and crates.io report different checksums for the current release candidate",
+                "Cargo.lock and crates.io report different checksums for the current release",
             )
         return {
             "credential_available": False,
@@ -581,7 +588,7 @@ def audit(
             evidence["violations"] = violations
             raise MaintenanceError(
                 "live_registry_audit_failed",
-                "crates.io discovery does not match the supported prerelease policy",
+                "crates.io discovery does not match the supported release policy",
             )
         checksum = observation["current_exact_version"]["registry_response"]["checksum"]
         evidence["exact_installation"] = verify_exact_install(

diff --git a/scripts/ci/publish-rust-sdk.sh b/scripts/ci/publish-rust-sdk.sh
@@ -116,7 +116,7 @@ if [[ "$package_version" != "$product_train" ]]; then
     printf 'Rust SDK package version must match its product train metadata: %s, %s\n' "$package_version" "$product_train" >&2
     exit 1
 fi
-if [[ "$compatibility_authority" != "protocol-manifests" || "$server_compatibility" != "2.0.0-rc.68" || "$qualified_server_version" != "2.0.0-rc.68" || "$server_worker_protocols" != ">=1.19,<2.0" ]]; then
+if [[ "$compatibility_authority" != "protocol-manifests" || "$server_compatibility" != "2.0.0" || "$qualified_server_version" != "2.0.0" || "$server_worker_protocols" != ">=1.19,<2.0" ]]; then
     printf 'unexpected Rust SDK supported Server contract: %s, %s, %s, %s\n' "$compatibility_authority" "$server_compatibility" "$qualified_server_version" "$server_worker_protocols" >&2
     exit 1
 fi

diff --git a/scripts/ci/qualify-docs-landing.py b/scripts/ci/qualify-docs-landing.py
@@ -61,6 +61,9 @@
 EXACT_PRERELEASE_VERSION = re.compile(
     r"\b\d+\.\d+\.\d+-(?:alpha|beta|rc)\.\d+\b"
 )
+EXACT_RELEASE_VERSION = re.compile(
+    r"\d+\.\d+\.\d+(?:-(?:alpha|beta|rc)\.\d+)?"
+)
 VISIBLE_CARGO_PATH = re.compile(
     r"\bcargo\s+add\s+durable-workflow\b|\bdurable-workflow\s*="
 )
@@ -433,9 +436,9 @@ def qualified_rust_version(contract_text: str) -> str:
     artifacts = contract.get("artifacts")
     rust = artifacts.get("sdk-rust") if isinstance(artifacts, dict) else None
     version = rust.get("version") if isinstance(rust, dict) else None
-    if not isinstance(version, str) or EXACT_PRERELEASE_VERSION.fullmatch(version) is None:
+    if not isinstance(version, str) or EXACT_RELEASE_VERSION.fullmatch(version) is None:
         raise QualificationError(
-            "public quickstart authority is missing a qualified Rust prerelease"
+            "public quickstart authority is missing a qualified Rust release"
         )
     return version
 

diff --git a/scripts/ci/test-maintain-crates-io.py b/scripts/ci/test-maintain-crates-io.py
@@ -110,7 +110,7 @@ def test_plan_names_every_historical_final_and_no_prerelease(self) -> None:
                 for version in self.plan["retired_versions"]
             )
         )
-        self.assertTrue(maintenance.is_2_0_release_candidate(self.current))
+        self.assertTrue(maintenance.is_supported_2_0_release(self.current))
 
     def test_retirement_yanks_only_active_reviewed_versions(self) -> None:
         registry = FakeRegistry(self.plan, self.current)
@@ -192,7 +192,7 @@ def test_live_audit_rejects_stale_default_discovery(self) -> None:
         install.assert_not_called()
         evidence = json.loads(evidence_path.read_text(encoding="utf-8"))
         self.assertIn(
-            "crate_root_default_version_is_not_current_release_candidate",
+            "crate_root_default_version_is_not_current_release",
             evidence["violations"],
         )
 

diff --git a/scripts/ci/test-publish-rust-sdk.py b/scripts/ci/test-publish-rust-sdk.py
@@ -18,10 +18,10 @@
 PUBLISH = ROOT / "scripts" / "ci" / "publish-rust-sdk.sh"
 RELEASE_WORKFLOW = ROOT / ".github" / "workflows" / "release.yml"
 RELEASE_TOOLING_INSTALLER = ROOT / "scripts" / "ci" / "install-release-tooling.sh"
-PACKAGE_VERSION = "2.0.0-rc.39"
+PACKAGE_VERSION = "2.0.0"
 PRODUCT_TRAIN = PACKAGE_VERSION
-SERVER_VERSIONS = "2.0.0-rc.68"
-QUALIFIED_SERVER_VERSION = "2.0.0-rc.68"
+SERVER_VERSIONS = "2.0.0"
+QUALIFIED_SERVER_VERSION = "2.0.0"
 WORKER_PROTOCOL_VERSION = "1.19"
 SERVER_WORKER_PROTOCOLS = ">=1.19,<2.0"
 RELEASE_COMMIT = "0123456789abcdef0123456789abcdef01234567"

diff --git a/scripts/ci/test-qualify-docs-landing.py b/scripts/ci/test-qualify-docs-landing.py
@@ -105,6 +105,18 @@ def test_source_ahead_of_public_authority_keeps_install_guidance_truthful(self)
         self.assertEqual(self.source_version, body.attrs.get("data-source-version"))
         self.assertNotIn("data-crate-version", body.attrs)
 
+    def test_stable_public_authority_is_accepted(self) -> None:
+        public_version = QUALIFIER.qualified_rust_version(
+            json.dumps(
+                {
+                    "schema": QUALIFIER.QUICKSTART_CONTRACT_SCHEMA,
+                    "artifacts": {"sdk-rust": {"version": "2.0.0"}},
+                }
+            )
+        )
+
+        self.assertEqual("2.0.0", public_version)
+
     def test_rejects_a_floating_cargo_requirement_in_visible_onboarding(self) -> None:
         floating_onboarding = self.html.replace(
             '<p class="dw-version">',
@@ -125,7 +137,7 @@ def test_rejects_a_floating_cargo_requirement_in_visible_onboarding(self) -> Non
     def test_rejects_an_exact_prerelease_version_in_visible_onboarding(self) -> None:
         pinned_onboarding = self.html.replace(
             '<p class="dw-version">',
-            f'<p class="dw-version"><span>Qualified crate {self.source_version}</span>',
+            '<p class="dw-version"><span>Qualified crate 2.0.0-rc.99</span>',
             1,
         )
 

diff --git a/tests/onboarding_version_pins.rs b/tests/onboarding_version_pins.rs
@@ -40,7 +40,7 @@ fn visible_html_text(content: &str) -> String {
 }
 
 #[test]
-fn onboarding_uses_the_prerelease_channel() {
+fn onboarding_uses_the_versionless_supported_channel() {
     for (path, content) in [
         ("README.md", include_str!("../README.md")),
         ("docs/index.html", include_str!("../docs/index.html")),