How long has Sentry been around? Is it stable?
The core spell check engine has been around since 1992. It formed part of a commercial stand-alone spell check product. We released Sentry as a separate product in 1993. Since then, it has been used in many commercial and in-house applications (see our customer list for more information). The Java SDK was developed and released in 1997. Since then, we have issued 10 major releases to add new features and keep pace with changing technology.