The AOO 4.0.1 release is a micro release which is a maintenance release to fix critical issues and/or security fixes and potentially support further languages.
Detailed Release Planning
A more detailed release planning can be found under AOO 4.0.1 Feature Planning
Release Notes
The related release notes can be found under AOO 4.0.1 Release Notes
Test and QA Plan
The related test and QA plan can be found under AOO 4.0.1 Testing Plan
Developer Snapshots
Regular built developer snapshots for early testing that can be found under Unofficial Developer Builds for Apache OpenOffice 4.0.1
Respin for additional Languages
We plan a respin to support some further languages, detailed information can be found under AOO 4.0.1 Respin for additional languages