So far so good with the v.8.1.1084 as well. I’ve been double-clicking (and right-clicking-Open) like crazy to open events in all calendar. Just one single crash in over 50 attempts. Not perfect but not bad at all.
Kudos to @George_Wilson and to the eMC Support team (nice communication via email btw). Excellent client experience as far as I am concerned.
If an application is working for you, and there are no essential security or feature upgrades that would be of benefit, then there really is no point in moving to something that may have new problems.
So Hassan can stick with 8.1.1084 until the next major release. There is no need to update to 8.1.1087.
I noticed since upgrading to V 1.8.1084 which (fixed the random calendar crashing issue), If I open the Theme editor and load in a Theme to edit, when i start clicking on the “Theme Menus” to edit on the left starting from the top left down, the Theme Editor “closed automatically”.
Then saw the new updated V 1.8.1087 link above and that has now fixed the Theme editor crashing issue
If you are interested, the latest 8.2 version in the Release History seems to be very stable. Maybe give that a try and see if there is any difference.
Before upgrading from 8.1 to 8.2 make a backup using Menu > Backup in case you decide to back later on.