Update:
We have now a developer-install of our website on a subdomain.
I updated this installation to 1.5.2 and had no problems so far.
Revolution sliders are all up-and-running just like before. I noticed though, that in the WP-edit-panel on the left side the tab ‘Sliders’ which gives access to a Woosliders setup (v. 1.0.8) is now missing. Which I dont really care for, as I dont use them. But maybe this was meant in the patch notes…
Navbar searchbox issue is also fixed (great!).
I’ll backup the Live-website and update to 1.5.2. and gonna check the behaviour on IE8 at home this evening, where I have a machine running WinXP and IE8 available.
Cheers,
thosch