I have bought a license for sublime text 3, very awesome tool for my daily development.Now I have version of 3083, How can I switch to dev build channel, I see the latest one is 3095.
Head to this page: sublimetext.com/3dev . Download and install the latest version for your system. Done.
How I can try Sublime Text 3 dev verion without key license?
You can't – you'll have to wait for the next non-dev build.