As of Aide v0.19 (released ca. 2025-04-05), the tiger hash function, among others, has been deprecated. The NEWS file in the src directory has the following entry (abridged by me): Version 0.19 (2025-04-05) * BACKWARDS INCOMPATIBLE CHANGES - remove unsupported hashsums (haval, crc32, crc32b, tiger, whirlpool) The default sample aide.conf still uses these deprecated hashsums, causing the latest versions of aide to complain: WARNING: /usr/local/etc/aide.conf:91: ignore unsupported hashsum(s): tiger (remaining hashsum(s): md5+sha1+rmd160+s ha3_256), please update your config (line: '/usr/local/etc/apache24\011R+p-i-n+u+g+s-a-m-c+md5+tiger+rmd160+sha1') The file security/aide/files/aide.conf.freebsd in the ports tree should be updated to reflect these changes.
In case it wasn't clear: the problem is not manifest if the port is installed, only if a user copies the sample ports config file (security/aide/files/aide.conf.freebsd in the ports src tree, /usr/local/etc/aide.conf.sample in the install) and actually uses it for their config.