# What's New in LEF/DEF 5.8 -- About This Manual
Describes new, changed, and removed features for LEF and DEF for version 5.8.
Author: Technical Publications

###
What's New in LEF/DEF 5.8

# About This Manual

This document provides information on new and changed features for version 5.8 of the Cadence® Library Exchange Format (LEF) and Design Exchange Format (DEF) integrated circuit description languages.

## How This Document Is Organized

This What's New document is organized into the following chapters:

| New Features

> This chapter describes features that were added or changed since version 5.7 of LEF and DEF.

> New features are those that introduce new functionality into LEF and DEF. Any enhancements made to existing statements to support a new feature are also described in this chapter.

## Related Documents

The following documents provide detailed information about LEF and DEF, and the LEF and DEF application programming interfaces.

| DEF C/C++ Programming Interface (Open Licensing Program)

| LEF C/C++ Programming Interface (Open Licensing Program)

| LEF/DEF Language Reference

| What's New in DEF C/C++ Programming Interface

| What's New in LEF C/C++ Programming Interface

1/20/17

Return to top of page

For support, see Cadence Online Support service.
Copyright © 2016, Cadence Design Systems, Inc.
All rights reserved.