This message announces the release of FreeSnell-1c4. FreeSnell is a program which computes optical properties of multilayer thin-film coatings. Dielectric, metallic, and granular metallic films are supported. The FreeSnell package includes a SCM script (program) "nk" to create, manage, and query a refractive-index spectral database. FreeSnell is an application of the SCM Scheme implementation and the WB B-tree database package. FreeSnell is free software. It is released under the GNU General Public License (GPL). The FreeSnell home page details installation and links to distributions, documentation, and examples: -=-=-=-=- FreeSnell-1c4 news: FreeSnell-1c4 tracks changes in Windows. Details at * optiplot.scm (convert-output): Use "magick" instead of "convert" program in Windows. (convert-output): Added options "-trim +repage", which are now required (in ImageMagick version 6.9) to convert EPS smaller than a full page. * index.html (x86 MS-Windows Installation): Corrected. * Makefile (w32install): Corrected. -=-=-=-=- The FreeSnell package is available from Also available as MS-Windows installer: SLIB is the portable scheme library which FreeSnell requires: Also available as RPM: Also available as MS-Windows installer: SCM is the Scheme implementation under which FreeSnell runs. SCM source is available from: Also available as a binary RPM: Also available as i386 MS-Windows installer (which includes WB): WB databases are used via SCM. Also available as a binary RPM: