For the improvement adverse: Minimal change. HFS-23-m-oldstyle.zip is available at
http://software.run.placeBuilt fresh from HFS2.3M original source, adding Leo's macro security patch, and the exec macro is disabled.
Not recommended for those new to HFS. HFS-23-m-oldstyle is for those who wish to avoid/reduce change.
The older style default template is still included internal to the program. For somewhat more comfort (optional) there is a considerably more Efficient default.tpl included separately in the zip file; because, it is nice to have the option of. . . not crash during a bot attack.
Edit: Also compatible with a pre-2025 hfs.ini file; if you happened to have an old backup handy from original M or K (remember to exit before copying the ini file to the same folder as hfs.exe). Using the old ini file will simply cause it to go back to work as expected.