A maintenance release of the Eclipse WTP (Web Tools Platform) project has been released, this release does not include any new enhancements but it includes a lot of serious performance and bug fixes that did not made it in the 1.5.1 release. These fixes were found to late to be solved within the 1.5.1 release.
People who already run the 1.5.1 version only need to use
the UpdateManager to 'find updates for currently installed features'.
The UpdateManager can be found under the
'Help' -> 'Software Updates' -> 'Find and Install...'.
To find out what has been changed since the 1.5.1 release take a look
If you want to download the complete binary file then take a look