[align=left]Description[/align][align=left]Advanced tips for upgrading Plone.[/align] 基本更新指导¶Plone官方站点的更新指导
Recommended set-up¶Test upgrade on local computer first. Create two buildouts. One for old Plone version (your existing buildout)and one for new version. Prepare the migration in old buildout.After all preparations are done, copy Data.fs to new buildoutand run plone_migration tool there.
Clear catalog¶Before moving Data.fs to new version, clear all site portal_catalog information.
Fix persistent utilities¶You might need to clean up some leftovers from uninstalledadd-ons which have not performed a clean uninstall. Use this utility:
[align=left]Note[/align][align=left]Perform this against old buildout[/align]
Upgrading theme¶Make sure that your site them works on Plone 4.Official upgrade guide has tips how the theme codebase shouldbe upgraded.
Theme fixing and portal_skins¶Your theme might be messed up after upgrade. Try playing aroudn setting in portal_skinsProperties tab.You can enable and disable and reorder skins layer applied in the theme. Upgrade may change the default theme and you might want to restorecustom theme in portal_skins.