How to migrate data to GitLab using main importers

What this post added

This post details the evolution of GitLab's data migration capabilities, focusing on group migration (direct transfer) and file-based export/import. It outlines the process and imported items for group migration, emphasizing its preference over file-based methods for connected instances. It also details the items importable from GitHub, including repository data, issues, pull requests, and attachments, and mentions the 'Repository by URL' import option. The post highlights the ongoing development efforts by the group:import team to enhance these importers.