Exim End of Life Dates

Developers working with Unix-like operating systems often rely on a mail transfer agent to manage email services, and one popular option is Exim, a free software distributed under the GNU General Public License. Created to be a general and flexible mailer, Exim has been a staple in the community for many years, with its development and maintenance overseen by a team of dedicated individuals. The fact that Exim is highly customizable and has extensive facilities for checking incoming mail has made it a favorite among developers who require a reliable and secure mail transfer agent.

Exim has a long history, with a total of 41 versions released over the years, although the vast majority of these, 40 to be exact, are now end-of-life. Currently, only one version remains active, which is the latest stable version, 4.99.1. The most recent version to reach its end-of-life was 4.98, which occurred on October 28, 2025. Since there is no next scheduled end-of-life date, developers can continue to use the current version without immediate concern for its expiration. This landscape indicates a mature product with a well-established user base.

From a security standpoint, Exim has a spotless record, with a total of 0 CVEs tracked, and consequently, 0 critical CVEs. As a result, there is no most affected version, and the product is not listed on the Known Exploited Vulnerabilities catalog. This exemplary security record should give developers confidence in using Exim for their mail transfer needs. To maintain the security and integrity of their systems, developers should continue to monitor the Exim website for updates and ensure they are running the latest stable version, which is currently 4.99.1, to take advantage of any new features and security patches that may be released.