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Hi. My name is Piotr and I work as a QA on the Engine in Desktop, and this blog post will be slightly more “engine-ish” :) .At first, I would like to present to you our latest Opera Developer build – 21.0.1432.5, which contains a few important fixes – Adblock is fully working again, tabs on Mac won’t do the Harlem Shake on hover anymore, and a couple of crashes are fixed. You can check full list of fixes in the changelog.Today, we’re also giving you a sneak peek of our latest features connected with improving start-up time – especially helpful when restoring session with many tabs. There are few different approaches – they are all available as separate feature-flags at opera://flags: #delay-onload – This one is my favorite :) – after restoring session, onload JS events in background tabs aren’t fired until a tab is activated. It might not sound that important, but during tests this feature was giving the best results – both in loading times, and CPU/memory usage. #extended-lazy-session-loading (requires #lazy-session-loading being on) – causes that an active tab + the configured number of tabs (still working on the number, for now it’s 2) is being loaded normally when restoring the session. When any of tabs finishes loading, it triggers the next one to start loading, until all tabs are done. It takes more time to fully restore session, but the start-up itself is much quicker it and takes less CPU. #restore-contenteditables-state – the content of elements with contenteditable=”true” is restored on session restoration/history navigation. #tab-hibernation – If a background tab is inactive (does not load anything including XHRs, plays any media, plug-in is not streaming any data, or a script is not changing page’s title/favicon) for 40 seconds its process gets suspended and swapped out (causing process memory usage drops significantly). Swapping out happens instantly on Windows and is driven by OS on mac. If the process is shared between couple of tabs, all of them have to be inactive for this to kick in. #session-tabs-serialization – all pages from opened tabs are serialized on HDD when closing the browser and are loaded from there instead of the network when restoring the session. This feature should be especially useful for the users with low bandwidth network.They are all still under heavy development, but, of course, you are very welcome to test on your own each one of them right now. We’re very curious about your impressions and feedback – also, if you found any issue with specific page, please report URLs and feature name.PS. remember you have to restart browser to make flag active – so, for example #session-tabs-serialization, which makes a lot of work during browser shut down, will be applied after second restart.
The Beta Channel has been updated to 34.0.1847.60 for Windows, Mac and Linux.This release fixes a number of crashes and other bugs. A full list of changes is available in the SVN log.
Spring is coming at an impressive pace in Europe: last year we still had snow in April, but this year we probably would be able to start the swimming season in less than three weeks.But enough of swimming plans. Here’s something more important we’re keeping pace with – our release cycle. Today we’re updating Opera Stable stream.This updated version includes stability fixes and a Chromium update to 33.0.1750.149.
Build Number: 12.1.0.825Build Date: 13-Mar-2014Stinger 32bit MD5: f18ef131f5387764f94676645336d202 SHA1: b0c3cd0ebd3627f0a336d62ceaa6eff5cb148e72Stinger-ePO 32bit MD5: 444136d4f0983f497afa43ddf3e50c84 SHA1: 0f8e2170a865f67cbda8dcc3e230caeb61c05512Stinger 64bit MD5: 101a49527118d8d41a4d6827cd5caee8 SHA1: fb30ee40693616fc59bece0d60d49567722c50abStinger-ePO 64bit MD5: b4bd837d4fef4d86ec4ef102310f3ea3 SHA1: af57c1ab7b00921e8fe6533b9153bf53c6f8b417 Enhanced detections are those that have been modified for this release. Detections are enhanced to cover new variants, optimize performance, and correct incorrect identifications.New Detections:Enhanced Detections:• PWS-ZBot.gen.aul• PWS-Zbot.gen.oj