@leocg I wholeheartedly disagree. The flag that allows for the "Recently Closed" functionality no longer works, nor is present. Without noting it in a change log or new installation notes, I would strongly argue that it is a bug.
That is the problem with Opera Devs (and really, also an industry trend) right now. There is no public official change control or documentation when these major/minor/micro releases occur. They just update and there is no notification of what changes were made. As this is a core browser function that many, many people rely on (just look at this thread for example) and also understanding that the flag used to work and now does not, easily rises to the level of a bug (without documentation or official statement, there is no other conclusion).
Another rather frustrating issue is that Opera (again, the industry as a whole) lumps together bug fix updates with new/different functionality. If they were separate and if they were documented each properly, a lot of end user issues could be addressed before they hit these forums. Perhaps developing in a vacuum, not publicly discussing up-and-coming changes and not documenting changes in a public change log is not the way to keep people informed?
One other point: a truly open and transparent bug system would allow for the client and Opera to track the progress of submitted bugs. In the manner by which they bug track, it does not allow for the creator to track the issue (as far as I can tell, but I could be wrong). This is just as frustrating and problematic as this forum; no official commentary from the devs.
Perhaps someone from Opera will see these things as issues and hopefully becomes the catalyst for change. I remain hopefully, but as a realist, I have serious doubts.