7-Zip 21.03

Released on 2021-07-20

Version21.03
Release Date2021-07-20
File Size1.6 MB
Supported OSWindows 11/10/8/7/Vista/XP & Windows Server 2022/2019/2016/2012/2008/2003/2000
StatusOld Version

Download 7-Zip 21.03

1.6 MB · Windows x64

Get Old Version

New Features

Maximum dictionary size for LZMA/LZMA2 increased to 4 GB (3840 MiB).

Performance Improvements

Minor speed optimizations in LZMA/LZMA2 compressing.

Upgrade Guide

  1. 1

    Beta release with increased maximum dictionary size.

  2. 2

    Enables higher compression ratios for large files.

SHA-256 Verification

To verify the authenticity of your download, calculate the SHA-256 hash of the downloaded file and compare it with the official checksum on the GitHub releases page.

# Right-click file > 7-Zip > SHA-256

# Or use PowerShell:

Get-FileHash 7z2103-x64.exe -Algorithm SHA256

(newer)7-Zip 21.04
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