There’s a new bugfix release of the stable version of DCSS. Source packages and binaries for Windows and Linux are available now; OS X and Android binaries will be uploaded as soon as they’re available. This release contains an important fix for Tiles users where mouse clicks could sometimes act as if Ctrl or Alt modifiers were active even when these keys weren’t pressed. A number of other bugs have been fixed that have minor gameplay effects; see the 0.16.2 entries in the changelog for details.
Update: OS X binaries are now available on the download page.
Update 2: Thanks for people pointing out the problems with the debian packages. They were built relative to Ubuntu Utopic (14.10) instead of Ubuntu Trusty (14.04). They’ve been rebuilt relative to Trusty and reuploaded to the repository. If you apt-get update and reattempt install, things should work. Next release we’ll be building relative to the recently updated debian stable, which will simplify things.