This article presents four essential GitLab integrations that can improve a developer's workflow in 2023. These include issue tracking tools Jira and Linear, code review and CI/CD notifications tool Axolo for Slack, automation tools Zapier and Make, and bug tracking tool Sentry. Each integration is explained with its capabilities and benefits, along with links to official documentation for further information. The author also mentions the development of an Unofficial GitLab Integrations Marketplace that will continue adding more integrations in the future.