Bug 216642

(In reply to rachithas104 from comment #0)
> Webkitgtk has released latest stable version 2.30.0
> https://webkitgtk.org/2020/09/11/webkitgtk2.30.0-released.html However I
> dont see the same version updated in ubuntu 18.04 and ubuntu 20.04
> repository https://launchpad.net/ubuntu/+source/webkit2gtk

In this link you shared it looks like so far the 2.30.0 package was only done
for the upcoming Groovy Gorilla release (which is right now in development).
I don't know if the Ubuntu package maintainers are planning to provide an
update to 2.30.0 for other releases — you would need to ask them.

From our side what we do is making sure that packagers will be able to
build new releases of WebKitGTK with the dependencies available in the
LTS (Long Term Support) versions of Ubuntu, see here:

  https://trac.webkit.org/wiki/WebKitGTK/DependenciesPolicy

We do this because we think that it is important that distributions
provide up-to-date WebKitGTK packages, but in the end the maintainers
of the Ubuntu package are the ones who decide which package updates they
want to provide.
 
> I see there is debian package in
> https://packages.debian.org/experimental/amd64/libwebkit2gtk-4.0-dev/download
> 
> However when installing this there are lot of dependencies

Debian packages in general are not expected to work on Ubuntu. Even if
Ubuntu is based on Debian, they are different.

> Can we install webkitgtk and all its dependencies seamlessly using simple
> steps
>
> It would be helpful in future if you release any installer which resolves
> all dependencies

Yes, once (and if) the Ubuntu package maintainers provide an updated
package for your version of Ubuntu, then you will be able to easily
install WebKitGTK 2.30.x


Unfortunately we do not have time ourselves