I am not sure why they did get the date wrong
16/04/2013 - Version 5
1.
Online DRC (real-time Design Rule Check)
2.
Schematic Buses (combining multiple signals into a Bus)
3. Installer improvements:dedicated (version-dependent) folders preserving Library folders when uninstalling preserving registry settings when uninstalling (for automatic activation of new version) improved messaging
4. Reorganised Tutorial links and Start Menu shortcuts