On the Sourceforge SVN repository the following definitions apply:

**/branches/timesheet.ng-1.3.x** (V1.3.x runs on PHP4/MySQL4)
  * Maintenance of the V1.3.x releases.
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**/branches/timesheet.ng-1.4.x** (V1.4.x runs on PHP5/MySQL5)
  * Maintenance of the V1.4.x releases.
  * Based on the functionality of v1.3.x
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**/branches/timesheet.ng-1.5** (V1.5 runs on PHP5/MySQL5)
  * Development of the V1.5
  * Redesigned completely
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**/tags**
  * Snapshots for releases.
  * Currently just V1.3.1
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**/trunk**
  * This will not normally be used, but may be used for merging. Opinions please.