diff --git a/scripts/release/__tests__/createReleasePR.test.ts b/scripts/release/__tests__/createReleasePR.test.ts
index b14cc0ec94f..bfeeb1a9de6 100644
--- a/scripts/release/__tests__/createReleasePR.test.ts
+++ b/scripts/release/__tests__/createReleasePR.test.ts
@@ -115,6 +115,7 @@ describe('createReleasePR', () => {
             current: '0.0.1',
             releaseType: null,
             noCommit: true,
+            next: null,
           },
 
           java: {
diff --git a/scripts/release/__tests__/updateAPIVersions.test.ts b/scripts/release/__tests__/updateAPIVersions.test.ts
index a7fa3d3c02b..92922354b5f 100644
--- a/scripts/release/__tests__/updateAPIVersions.test.ts
+++ b/scripts/release/__tests__/updateAPIVersions.test.ts
@@ -1,3 +1,4 @@
+import { getNextVersion } from '../createReleasePR';
 import { getVersionsToRelease } from '../updateAPIVersions';
 
 describe('updateAPIversions', () => {
@@ -6,16 +7,19 @@ describe('updateAPIversions', () => {
       javascript: {
         current: '1.0.0',
         releaseType: 'minor',
+        next: getNextVersion('1.0.0', 'minor'),
       },
       php: {
         current: '2.0.0',
         releaseType: 'patch',
+        next: getNextVersion('2.0.0', 'patch'),
       },
       java: {
         current: '3.0.0',
         releaseType: null,
         noCommit: true,
         skipRelease: true,
+        next: null,
       },
     });
 
@@ -32,15 +36,18 @@ describe('updateAPIversions', () => {
       javascript: {
         current: '0.0.1',
         releaseType: 'patch',
+        next: getNextVersion('0.0.1', 'patch'),
       },
       php: {
         current: '0.0.1',
         releaseType: 'minor',
+        next: getNextVersion('0.0.1', 'minor'),
       },
       java: {
         current: '0.0.1',
         releaseType: 'patch',
         skipRelease: true,
+        next: null,
       },
     });
     expect(versions).toEqual({
diff --git a/scripts/release/createReleasePR.ts b/scripts/release/createReleasePR.ts
index 6207b4cc5fe..c3539bbde90 100755
--- a/scripts/release/createReleasePR.ts
+++ b/scripts/release/createReleasePR.ts
@@ -22,7 +22,7 @@ import { RELEASED_TAG } from './common';
 import TEXT from './text';
 import type {
   Versions,
-  VersionsWithoutReleaseType,
+  VersionsBeforeBump,
   PassedCommit,
   Commit,
   Scope,
@@ -34,7 +34,7 @@ dotenv.config({ path: ROOT_ENV_PATH });
 
 const COMMON_SCOPES = ['specs'];
 
-export function readVersions(): VersionsWithoutReleaseType {
+export function readVersions(): VersionsBeforeBump {
   return Object.fromEntries(
     LANGUAGES.map((lang) => [lang, { current: getPackageVersionDefault(lang) }])
   );
@@ -177,6 +177,10 @@ export function getNextVersion(
     );
   }
 
+  console.log(
+    `Next version is '${nextVersion}', release type: '${releaseType}'`
+  );
+
   return nextVersion;
 }
 
@@ -185,7 +189,7 @@ export function decideReleaseStrategy({
   versions,
   commits,
 }: {
-  versions: VersionsWithoutReleaseType;
+  versions: VersionsBeforeBump;
   commits: PassedCommit[];
 }): Versions {
   return Object.entries(versions).reduce(
diff --git a/scripts/release/types.ts b/scripts/release/types.ts
index e029f9328d1..4ab32829098 100644
--- a/scripts/release/types.ts
+++ b/scripts/release/types.ts
@@ -5,7 +5,7 @@ import type { Language } from '../types';
 export type Version = {
   current: string;
   releaseType: ReleaseType | null;
-  next?: string;
+  next: string | null;
   skipRelease?: boolean;
   noCommit?: boolean;
 };
@@ -14,8 +14,8 @@ export type Versions = {
   [lang: string]: Version;
 };
 
-export type VersionsWithoutReleaseType = {
-  [lang: string]: Omit<Version, 'releaseType'>;
+export type VersionsBeforeBump = {
+  [lang: string]: Omit<Version, 'next' | 'releaseType'>;
 };
 
 export type Scope = Language | 'specs';
@@ -38,7 +38,9 @@ export type Commit =
   | { error: 'unknown-language-scope' };
 
 export type VersionsToRelease = {
-  [lang in Language]?: Pick<Version, 'current' | 'next'> & {
+  [lang in Language]?: {
+    current: string;
+    next: string;
     releaseType: ReleaseType;
   };
 };
diff --git a/scripts/release/updateAPIVersions.ts b/scripts/release/updateAPIVersions.ts
index 7f705326c4e..fac09b3f8fc 100755
--- a/scripts/release/updateAPIVersions.ts
+++ b/scripts/release/updateAPIVersions.ts
@@ -21,7 +21,6 @@ import {
   getClientsConfigField,
   getGitHubUrl,
   getLanguageFolder,
-  getPackageVersionDefault,
 } from '../config';
 import type { Language } from '../types';
 
@@ -31,16 +30,13 @@ dotenv.config({ path: ROOT_ENV_PATH });
 
 /**
  * Bump each client version of the JavaScript client in openapitools.json.
+ *
+ * We don't use the pre-computed `next` version for JavaScript, because the packages have independent versioning.
  */
 async function updateVersionForJavascript(
-  versionsToRelease: VersionsToRelease
+  jsVersion: NonNullable<VersionsToRelease['javascript']>
 ): Promise<void> {
-  if (!versionsToRelease.javascript) {
-    return;
-  }
-
   // Sets the new version of the JavaScript client
-  const jsVersion = versionsToRelease.javascript;
   Object.values(GENERATORS)
     .filter((gen) => gen.language === 'javascript')
     .forEach((gen) => {
@@ -58,7 +54,7 @@ async function updateVersionForJavascript(
     });
 
   await fsp.writeFile(
-    toAbsolutePath('config/openapitools.json'),
+    toAbsolutePath('config/openapitools.json').concat('\n'),
     JSON.stringify(openapiConfig, null, 2)
   );
 
@@ -81,14 +77,16 @@ async function updateVersionForJavascript(
   clientsConfig.javascript.utilsPackageVersion = nextUtilsPackageVersion;
   await fsp.writeFile(
     toAbsolutePath('config/clients.config.json'),
-    JSON.stringify(clientsConfig, null, 2)
+    JSON.stringify(clientsConfig, null, 2).concat('\n')
   );
 }
 
 async function updateConfigFiles(
   versionsToRelease: VersionsToRelease
 ): Promise<void> {
-  await updateVersionForJavascript(versionsToRelease);
+  if (versionsToRelease.javascript) {
+    await updateVersionForJavascript(versionsToRelease.javascript);
+  }
 
   // update the other versions in clients.config.json
   LANGUAGES.forEach((lang) => {
@@ -96,23 +94,12 @@ async function updateConfigFiles(
       return;
     }
 
-    const releaseType = versionsToRelease[lang]!.releaseType;
-    const nextVersion = versionsToRelease[lang]!.next;
-
-    if (!nextVersion) {
-      throw new Error(
-        `Failed to bump version ${getPackageVersionDefault(
-          lang
-        )} by ${releaseType}.`
-      );
-    }
-
-    clientsConfig[lang].packageVersion = nextVersion;
+    clientsConfig[lang].packageVersion = versionsToRelease[lang]!.next;
   });
 
   await fsp.writeFile(
     toAbsolutePath('config/clients.config.json'),
-    JSON.stringify(clientsConfig, null, 2)
+    JSON.stringify(clientsConfig, null, 2).concat('\n')
   );
 }
 
@@ -146,8 +133,8 @@ export function getVersionsToRelease(versions: Versions): VersionsToRelease {
   const versionsToRelease: VersionsToRelease = {};
 
   Object.entries(versions).forEach(
-    ([lang, { noCommit, current, skipRelease, releaseType }]) => {
-      if (noCommit || skipRelease || !current) {
+    ([lang, { noCommit, current, skipRelease, releaseType, next }]) => {
+      if (noCommit || skipRelease || !current || !next) {
         return;
       }
 
@@ -163,6 +150,7 @@ export function getVersionsToRelease(versions: Versions): VersionsToRelease {
       versionsToRelease[lang] = {
         current,
         releaseType,
+        next,
       };
     }
   );
@@ -221,7 +209,7 @@ export async function updateAPIVersions(
       lang: lang as Language,
       changelog,
       current,
-      next: next!,
+      next,
     });
   }