Just adding a note on versions - some users have written to us with concerns that Opus 11 is about to be upgraded to a major new version.
Be not afraid! 
While we never comment on release dates nor plans for new major versions, these are traditionally every 2-3 years. Opus 11 was only released this year so Opus 12 is a long way off yet.
With Opus 11 we have increased the frequency of beta releases so users can provide more rapid feedback on issues addressed. These releases have been almost weekly recently, which means that the sub-version numbers have increased more quickly than in previous years.
As some may remember, earlier this year, to avoid confusion, we dropped the 4th numeral in the traditional version scheme so the current versioning is now only X,y,z or more correctly V.S.B - for Version, Sub-version, Beta release. This current version system means that Opus 11 does not finish at 11.9 and may go to 11.666 yet.