How to change the link to your blog post when you change its title

You can change the link in Permalink -> Custom Permalink

https://www.blogger.com makes links to your blog post with the date of creation(month and year) and title of your blog, automatically.

If you end up changing your title and want it to reflect in the link, use 'Revert to draft' and 'Publish' again.

If you have already shared the link, create a post with the old title and in the content add the new link. Change schedule to the date of the original blog and publish :)