Class Action Lawsuit Against Synopsys Dismissed
Dismissal Resolves Litigation With No Additional Expense to Synopsys

Synopsys, Inc. (NASDAQ: SNPS), a world leader in semiconductor design software, today announced the final dismissal of Kanekal v. Synopsys et al. The class action lawsuit, filed in August 2004 in United States District Court for the Northern District of California, had alleged securities laws violations by Synopsys and certain of its officers. Judgment has now been entered in favor of Synopsys with each party bearing its own fees and costs.

"This dismissal resolves in our favor a case we believed from the beginning had no foundation," stated Dr. Aart de Geus, chairman and chief executive officer of Synopsys. "We are very pleased to have won our motion to dismiss and to be able to move forward without further management distraction or expense."

About Synopsys

Synopsys, Inc. is a world leader in EDA software for semiconductor design. The company delivers technology-leading semiconductor design and verification platforms and IC manufacturing software products to the global electronics market, enabling the development and production of complex systems-on-chips (SoCs). Synopsys also provides intellectual property and design services to simplify the design process and accelerate time-to-market for its customers. Synopsys is headquartered in Mountain View, California and has offices in more than 60 locations throughout North America, Europe, Japan and Asia. Visit Synopsys online at http:/ .

  NOTE:  Synopsys is a registered trademark of Synopsys, Inc.

   Lisa L. Ewbank
   Synopsys, Inc.

   Yvette Huygen
   Synopsys, Inc.

SOURCE: Synopsys, Inc.

CONTACT: investors, Lisa L. Ewbank, +1-650-584-1901, or media, Yvette
Huygen, +1-650-584-4547, or, both of Synopsys, Inc.

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