This section describes the general MySQL development roadmap, provides an overview about features that have been implemented in previous series and that are new in MySQL 5.1, the release series covered in this manual. The maturity level this release series is general availability. Information about maturity levels can be found in Section 18.104.22.168, “Choosing Which Version of MySQL to Install”. This section also provides an overview about upcoming additions or changes in the next release series (5.4).
Before upgrading from one release series to the next, please see the notes in Section 2.12.1, “Upgrading MySQL”.
The most requested features and the versions in which they were implemented or are scheduled for implementation are summarized in the following table.
|R-trees||4.1 (for the
|Stored procedures and functions||5.0|
|Triggers||5.0 and 5.1|
|Pluggable storage engine API||5.1|
|Server log tables||5.1|
|Foreign keys||6.x (implemented in 3.23 for