When loading a UserAction library via System class>>loadUserActionLibrary:, the specified filename may usually omit the extension; that is, use libraryName rather than libraryName.so.
However, the extension was required for library names with GemStone-style formatting (the format, for example, of libgbslnk-3.6.0-64.so). Loading a user action library with a filename formatted in this way fails if the .so extension is omitted.
Last updated: 2/11/22