diff --git a/scripts/release/sdk.ts b/scripts/release/sdk.ts
index aa6ef2f..b5f54b0 100644
--- a/scripts/release/sdk.ts
+++ b/scripts/release/sdk.ts
@@ -81,16 +81,16 @@ async function npmVersionExists(
 		return true;
 	} catch (error: any) {
 		if (error.stderr) {
-			if (
-				!error.stderr.includes(
-					`No match found for version ${version}`,
-				) &&
-				!error.stderr.includes(
-					`'${packageName}@${version}' is not in this registry.`,
-				)
-			) {
+			const stderr = error.stderr;
+			// Expected errors when version or package doesn't exist
+			const expected =
+				stderr.includes(`No match found for version ${version}`) ||
+				stderr.includes(`'${packageName}@${version}' is not in this registry.`) ||
+				stderr.includes("404 Not Found") ||
+				stderr.includes("is not in the npm registry");
+			if (!expected) {
 				throw new Error(
-					`unexpected npm view version output: ${error.stderr}`,
+					`unexpected npm view version output: ${stderr}`,
 				);
 			}
 		}
diff --git a/sdks/acp-http-client/package.json b/sdks/acp-http-client/package.json
index 6eb419a..ad1bc4e 100644
--- a/sdks/acp-http-client/package.json
+++ b/sdks/acp-http-client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "acp-http-client",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Protocol-faithful ACP JSON-RPC over streamable HTTP client.",
   "license": "Apache-2.0",
   "repository": {
diff --git a/sdks/persist-indexeddb/package.json b/sdks/persist-indexeddb/package.json
index dc204ca..04eb853 100644
--- a/sdks/persist-indexeddb/package.json
+++ b/sdks/persist-indexeddb/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sandbox-agent/persist-indexeddb",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "IndexedDB persistence driver for the Sandbox Agent TypeScript SDK",
   "license": "Apache-2.0",
   "repository": {
diff --git a/sdks/persist-postgres/package.json b/sdks/persist-postgres/package.json
index 0ad277d..be8afd6 100644
--- a/sdks/persist-postgres/package.json
+++ b/sdks/persist-postgres/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sandbox-agent/persist-postgres",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "PostgreSQL persistence driver for the Sandbox Agent TypeScript SDK",
   "license": "Apache-2.0",
   "repository": {
diff --git a/sdks/persist-rivet/package.json b/sdks/persist-rivet/package.json
index 44baf47..da170aa 100644
--- a/sdks/persist-rivet/package.json
+++ b/sdks/persist-rivet/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sandbox-agent/persist-rivet",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Rivet Actor persistence driver for the Sandbox Agent TypeScript SDK",
   "license": "Apache-2.0",
   "repository": {
diff --git a/sdks/persist-sqlite/package.json b/sdks/persist-sqlite/package.json
index 46f1e58..a35a4c2 100644
--- a/sdks/persist-sqlite/package.json
+++ b/sdks/persist-sqlite/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@sandbox-agent/persist-sqlite",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "SQLite persistence driver for the Sandbox Agent TypeScript SDK",
   "license": "Apache-2.0",
   "repository": {