Features include:
    Supports HFS and HFS+ (Mac OS Extended).
    Supports case sensitive and journaled filesystems.
    Supports adaptive hot file clustering ("Hot Zone").
    Four powerful defragmentation algorithms:
    Compact data, moving all free space to one place.
    Optimize filesystem metadata.
    On-line defragmentation.
    Defragment whilst your disk is mounted.
    Advanced programmable optimization.
    Rearrange your disk the way you want.
    B-Tree metadata file compaction/optimization support.
    High performance user-defined file classification engine.
    Per-block and accurate whole disk display.
    Detailed statistics so you know whether you need to optimize.
    Inspector allows you to view details of individual extents/files.
    Quickly jump to specific files to examine them in more detail.
    Altivec accelerated display for improved performance.
    Auto-update feature ensures you always have the latest version.
    Fine-grained security, just like iPartition.
    AppleScript support.

What's New
Version 2.2.8:
    Minor change to the behaviour of the "Check for Errors" option.
    Compatible with upcoming Gatekeeper changes in 10.9.5 update.
    Fixed a hard-to-trigger bug in our HFS code that might have caused a crash.

compatible with OS X 10.10 Yosemite.

Home Pgae - http://coriolis-systems.com/iDefrag.php

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