Acrobat plugin crashing problem. Crashing at splash screen. SSL fix where certain version 2 servers would choke on version 3 handshaking Adding preferred webpage languages on W98 systems now works If you are not having problems with any of the above, I'd think about upgrading in a week or two after the dust settles. According to most reports, 5.11 introduced no new bugs or problems. It fixed the above bad behavior as stated.
Opera now sports the start of a skinning system.
See the Skins Section of the Opera 5 User FAQ for more information. MDI windows may now be maximized while new windows are opened on top of them. This addresses the long standing complaint of Popup windows causing windows underneath to tile or cascade. If you don't like it, see the Tips and Tweaks faq section. An option mainly to address the lack of status information in full screen presentation is an option to turn the progress information into a popup.