Opera Software has released version 7.5 of their namesake web browser for Windows, Mac, Linux, FreeBSD and Solaris. Opera supports HTML, XML, XHTML, RSS, WML 2.0, and CSS. XSLT is not supported. Other features include IRC, mail, and news clients and pop-up blocking. New features in this release include an IRC client, RSS support, full-text indexing of e-mail messages, and spell check. Opera is $39 payware.