The current development release of sudo is 1.9.16rc2. Binary packages are also available for development releases. For full details see the ChangeLog file or view the commit history via git or GitHub. If you plan to use a development release of sudo, please subscribe to the sudo-workers mailing list so that you will receive updates on bug fixes and related announcements. You may also be interested in the sudo-commits mailing list which receives a message for each commit to the sudo source tree.