- Plug-ins: fixed a problem introduced in 6.4.52 by which menu commands with pause forms didn’t work.
- Scripting: fixed some problems introduced in version 6.4.52 concerning the interaction between pause windows and the Demo window.
- Opening TIFF files with Read from file..., as well as Insert picture from file...: rid a bug that would show monochrome TIFF files in four vertical stripes.
- Scripting: in pause forms, allow vector expressions as defaults in vector fields.
- Backslash trigraph for apico-postalveolars: ṣ (s\.v), following Ladefoged & Maddieson (1996), who wanted to distinguish them from the more extreme retroflexes, i.e. apico-palatals such as ʂ (\s.).