Hi Ravik,
> 1- shall we need to purches new licnce for 9.3 or we can upgrate our older TestComplete 8.7 licnce into TestComplete 9.3.
This depends on whether you have active Maintenance subscription or not. If you do, then the latest version of TC should be available to you on the client portal (
https://my.smartbear.com). If you don't, then you'd better contact Sales (
sales@smartbear.com) and ask them.
> 2- Is it support IE 10 and 11 ?
Yes for IE10 and No for IE11 (
http://support.smartbear.com/viewarticle/32774/)
> 3- What are the addtional features are available in TestComplete 9.3.
http://support.smartbear.com/viewarticle/51669/ and
http://support.smartbear.com/viewarticle/37157/