Oracle Press Release

MySQL 5.5 Now Generally Available

New Performance and Scalability Enhancements Highlight Oracle’s Continued Investment in MySQL

Redwood Shores, Calif. – December 15, 2010

News Facts

Underscoring its commitment to deliver new innovations to MySQL users, Oracle today announced the general availability of MySQL 5.5.
MySQL 5.5 delivers significant enhancements enabling users to improve the performance and scalability of web applications across multiple operating environments, including Windows, Linux, Oracle Solaris, and Mac OS X.
The MySQL 5.5 Community Edition, which is licensed under the GNU General Public License (GPL), and is available for free download, includes InnoDB as the default storage engine.
This release benefitted from substantial user community participation and feedback on the MySQL 5.5 Release Candidate, helping to provide a more broadly tested product.
For more details, join the MySQL Technology Update webcast on Dec. 15th at 10:00am US, Pacific Time.

Enhances Capabilities for Web Applications

The 5.5 release of MySQL provides the customization capabilities and scalability that MySQL DBAs and developers need to more efficiently build, maintain and scale web applications.
With the MySQL 5.5 release users benefit from:
Improved performance and scalability: MySQL Database and InnoDB storage engine have been enhanced to provide optimum performance and scalability when running on the latest multi-CPU and multi-core hardware and operating systems. In addition, with release 5.5, InnoDB is now the default storage engine for the MySQL Database, delivering ACID transactions, referential integrity and crash recovery.
Higher availability: New semi-synchronous replication and Replication Heart Beat improve failover speed and reliability.
Improved usability: Improved index and table partitioning, SIGNAL/RESIGNAL support and enhanced diagnostics, including a new PERFORMANCE_SCHEMA, improve the manageability of MySQL 5.5.

MySQL 5.5 Delivers Major Performance Gains

In recent benchmarks, the MySQL 5.5 release candidate delivered significant performance improvements compared to MySQL 5.1. Results included:
On Windows: Up to 1,500 percent performance gains for Read/Write operations and up to 500 percent gain for Read Only.(1)
On Linux: Up to 360 percent performance gain in Read/Write operations and up to 200 percent improvement in Read Only.(2)

Supporting Quotes

"The latest release of MySQL further exemplifies Oracle’s commitment to the MySQL community and investment in delivering rapid innovation and enhancements to the MySQL platform. With MySQL 5.5, end users and ISVs have a high performance, reliable, scalable and cost-effective alternative to Microsoft SQL Server for building and deploying their business critical web and embedded applications,” said Edward Screven, Oracle’s Chief Corporate Architect.
"Oracle did a great job with MySQL 5.5 – in record time! It has many of the new features and performance improvements that our customers need and want. We're very excited about this release," said Sheeri K. Cabral, Oracle Ace Director and Database Operations Manager at PalominoDB, a global database services provider.
"We have been using MySQL since 2003 to power our Subscriber Data Management solution. MySQL replication is a key component of our multi-layer scalability and high-availability framework. The semi-synchronous replication capabilities built into MySQL 5.5 will enable us to further enhance data integrity for our customers, helping deliver a complete view of subscribers across any network domain for new levels of insight, agility and operational efficiency," said Richard Bodin, Senior Manager, SDM Product Line, Tekelec.

Supporting Resources

“Open for Business”: MySQL community wins with better innovation, support, and integration

About Oracle

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(1) SysBench benchmark of MySQL 5.5.6 vs. MySQL 5.1.50 performed on Intel x86_64; 4 CPU x 2 Cores/CPU; 3.166 GHz, 8GB RAM; Windows Server 2008
(2) SysBench benchmark of MySQL 5.5.6 vs MySQL 5.1.50 performed on Intel Xeon X7460 x86_64; 4 CPU x 6 Cores/CPU; 2.66 GHz, 32GB RAM; Fedora 10

Contact Info

Teri Whitaker
Oracle
+1.650.506.9914
teri.whitaker@oracle.com

Kristin Reeves
Blanc & Otus
+1.415.856.5145
kreeves@blancandotus.com