Atlassian announced on Wednesday that Bitbucket is shuttering its Mercurial offering.
For those looking for a new host, Sourcehut may be a good choice for you. Unlike its closed-source competitors, Sourcehut is 100% open source software, and thanks to the Mercurial community (especially Ludovic Chabant), Hg support on Sourcehut is strong and will remain so for as long as the Hg community is committed to it.
Bitbucket users may find our workflow different from what they're used to, but it's different for good reasons. Give it an shot and ask for help if you need it. We've prepared a migration tool which will import your Bitbucket repos and issues.