# Hibernate Tools 3.2.0.beta7 - New and Noteworthy

Previous new and noteworthy for 3.1.0.beta6

Release notes

### General

Bugfixing | This release has more bugfixes than new features so go checkout the JIRA release notes

### Reverse engineering

Many-to-Many and Optimistic locking columns

By popular demand the reverse engineering now supports automatic detction of many-to-many.

It is enabled by default, but can be toggled in the UI or in Ant via the `detectmanytomany` attribute.

Detection of optimistic locking columns was automatically enabled in the previous versions and customizable programmatically, but now it is also available in the UI and Ant task (`detectoptimisticlock` attribute).

### Query editing

Null in parameters | The query parameter view now has an additonal column that can be enabled/disabled dependent on you want <literal>null</literal> to be set instead of a concrete value.