((hot)) Download Sql Developer 21.4.3 -
Oracle SQL Developer version 21.4.3 is a critical maintenance update released in March 2022 to address specific performance and security issues found in the 21.4 series. Key Fixes in 21.4.3
The primary reason to download this specific version was to resolve two significant issues:
Performance Restoration: Fixed a bug where SQL Developer would execute REGEDIT on Windows to find ORACLE_HOME locations, causing massive slowdowns for queries and scripts.
Security Update: Updated the Log4J library (matching the 2.17.1 version) to address vulnerabilities that were a major industry concern during its release. How to Download and Install
Official Source: Download the installation package directly from the Oracle SQL Developer 21.4.3 Archive Page.
JDK Requirements: This version requires Java 8 or 11 (minimum 1.8 update 171). download sql developer 21.4.3
Windows: Choose the "Windows 64-bit with JDK 8 included" bundle for a simpler setup.
Mac/Linux: You must have a compatible JDK pre-installed. For Mac, download the OS X distribution, which is digitally signed for modern macOS security.
Clean Installation: It is highly recommended to unzip the file into a fresh, empty folder rather than over-installing on an old version. Pro-Tips for 21.4.3
Environment Variables: If you previously added an $ORACLE_HOME environment variable as a workaround for performance issues in 21.4.2, this fix in 21.4.3 makes that variable optional again.
Connection Compatibility: This version supports Oracle Database 19c and higher for OCI "Thick" connections. Oracle SQL Developer version 21
Troubleshooting: If the application fails to open on Windows, clearing the system21.4.3 folder in your AppData\Roaming directory often fixes corrupted configuration states.
Prerequisites
Before downloading, ensure your system meets these requirements:
- Java Development Kit (JDK): SQL Developer 21.4.3 requires JDK 11 (or JDK 17 for later compatibility). It will not work with JDK 8.
- Supported Operating Systems: Windows (64-bit), macOS (Intel/Apple Silicon), Linux, and Oracle Solaris.
- Disk Space: Approximately 500 MB for the full installation.
Why Download SQL Developer 21.4.3 Specifically?
Before we dive into the download process, let's address the obvious question: Why not just get the newest version?
- Enterprise Compliance: Many IT departments require strict version control. If your production environment is certified against 21.4.3, you must use it.
- Plugin Compatibility: Third-party plugins or internal scripts might have been written for the 21.4.3 API.
- Stability Over Features: Newer versions sometimes introduce beta features or UI changes. 21.4.3 is a known quantity, stable, and well-documented.
- Offline Installations: For air-gapped systems, you need a specific installer you can trust. 21.4.3 is a proven release.
Prerequisites for Downloading and Running Version 21.4.3
Version 21.4.3 has specific system requirements. Ensure you meet these before downloading to avoid runtime errors.
| Component | Requirement | | --- | --- | | Operating System | Windows 10/11 (64-bit), macOS 11+, Linux (x86_64) | | RAM | Minimum 2 GB (4 GB recommended) | | Disk Space | ~1.2 GB (plus workspace storage) | | Java JDK | Oracle JDK 11 or OpenJDK 11 (build 11.0.11+) | | Screen Resolution | 1024 x 768 minimum | Java Development Kit (JDK): SQL Developer 21
Critical Note: Unlike newer versions that bundle a JDK, SQL Developer 21.4.3 does NOT include Java. You must manually install JDK 11 before launching.
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Step-by-Step: How to Download SQL Developer 21.4.3
Follow this exact process to safely get the correct files.
1. Introduction
Oracle SQL Developer is a free, integrated development environment that simplifies the development and management of Oracle Database in both standard and cloud deployments. Version 21.4.3 represents a specific patch set release within the 21.4 cycle, noted for critical bug fixes and stability improvements over the initial 21.4 release. As legacy tools such as SQL*Plus become less suitable for modern GUI-centric workflows, ensuring the correct deployment of SQL Developer is essential for operational efficiency. This paper serves as a definitive reference for technical teams requiring the deployment of this specific version.
Why Choose Version 21.4.3?
Before clicking the download button, let’s quickly review why this specific version is still relevant:
- Stability: As a mature release in the 21.x branch, it contains fewer bugs than later “bleeding-edge” versions.
- JDK 11 Compatibility: It works seamlessly with JDK 11, which is a Long-Term Support (LTS) release.
- Cloud Integration: Includes full support for Oracle Autonomous Database (Shared and Dedicated).
- REST Data Services: Improved REST Data Services development features.
Note: Version 21.4.3 was released in early 2022. For the absolute latest features (e.g., MongoDB API, VS Code extensions), visit Oracle’s main download page. For legacy or specific build needs, read on.