# Table of Contents
Describes new, changed, and removed features for the LEF API in version 5.8.
Author: Technical Publications

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What's New in LEF 5.8 C/C++ Programming Interface

# Contents

## About This Manual

How This Document Is Organized

Related Documents

## 1

## New Features

General LEF Reader Changes

LEF Reader Setup and Control Routines

LEF Reader Callback Routines

LEF Reader Classes

## 2

## Changed Features

Layer Routines

  lefiGeometries
  lefiGeomRect
  lefiGeomRectIter
  lefiGeomPath
  lefiGeomPathIter
  lefiGeomPolygon
  lefiGeomPolygonIter
  lefiGeomVia
  lefiGeomViaIter
  lefiLayer
  lefiViaLayer
  lefiVia
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