I stopped using Opera and switched to Vivaldi and I can assure you it's not Chromium as I have absolutely no "outofmemory" issues using Vivaldi so far (and used it for days now).

I have a 16GB DDR system , Windows 10 , SSD and opera showing outofmemory messages is absurd (btw, if you had a real 64bit version this error would have not appeared:) there is clearly a memory hole in the code introduced with the latest patches/versions. T

Anyway , it is definetely something related to opera last 2 versions (just compare the code and see what you added and do a proper smoke and regression testing this time) , frankly this is a job for QA (if there is something like that at Opera or devs/enduser is the QA?) but i think Developers should look into the code for this and see what sites are causing it , have a debugger running and also checking the process to understand this bug. A end-user cannot do nothing here but experience it.

My Opera configs :

Extension:
1 Adblock Plus
2.Last Pass

If we are on the logic that only 10 experienced it and as such it's not important ...well there are other browsers.

Going to switch to other browser until this is fixed. Honestly I lost trust in Opera completely after this. Such a terrible bug released into production , don't they test these things anymore?

I am having the same issues. With 5 tabs open (mainly text sites/video sites) Opera sucks up 2-3 GB of RAM . This is insane. You are going to lose users.

http://engageme.tv -> outofmemory for me as well.

To be clear : This appeared after the last 2 patches or so , I never experienced this with ANY of the previous versions.

So in other words , I noticed that lately Opera was beginning to trow "Out of memory" errors. I have a 16 GB DDRAM system and checking taskmanager/system resources I saw that somehow Opera was consuming approximately 4GB alone.

WTF , none of my tabs and sites should ever get close to that so I'm thinking there is a memory issue in the brower code.

Cannot attach screenshot so there is a link:
https://storage.rcs-rds.ro/content/links/294d9985-379d-4d85-a478-38d05f5efeff/files/get/wtf.JPG?path=