Wyvern (Dungeons & Dragons) aggressive, and able to lash with a sting-equipped tail. This edition of the "D&D" game included its own version of the wyvern, in the "Dungeons & Dragons Expert Set" (1981 & 1983). The wyvern was also later featured in the "Dungeons & Dragons Game" set (1991), the "Dungeons & Dragons Rules Cyclopedia" (1991), and the "Classic Dungeons & Dragons Game" set (1994). The wyvern appears first in the "Monstrous Compendium" Volume One (1989), and are reprinted in the "Monstrous Manual" (1993). The Mercykiller wyrm, a relative of the wyvern for the Planescape campaign setting, appeared in "In the Cage: A
Wyvern (programming language) security. It is currently in a prototype stage and distributed under a GPLv2 license. Wyvern (programming language) Wyvern is a computer programming language created by Jonathan Aldrich and Alex Potanin for the development of web and mobile applications with security and assurance being number one priority. Wyvern supports object capabilities, it is structurally typed, and aims to make secure way of programming *easier* than insecure - as described in the Wyvern Manifesto. One of the early available features that make Wyvern special is a way to safely use multiple programming languages within the same program so programmers can use the