Popular: Data updated October 27, 2026

Categories

Internet1,356
Communication321
Audio & video898
Graphics & design539
Office & productivity1,124
Developer tools3,134
AI tools529
Security & privacy385
System tools3,114
Games523
Education & science239
Network & IT284

UPX: all versions and old releases

A free, secure, portable, extendable, high-performance executable packer for several executable formats.

UPX Archivers #4 Archivers

15 versions of UPX are listed here, from November 16, 2022 to the current 5.2.1. Each one links to the publisher’s own installer files.

2022: 1 1 22 2023: 4 4 23 2024: 3 3 24 2025: 3 3 25 2026: 4 4 26

15 versions over 4 years · about 4 a year

VersionDateSizeFiles
5.2.1Latest August 27, 2026 — 64-bit ZIP32-bit ZIP
Release notes
* bug fixes - see https://github.com/upx/upx/milestone/24
5.2.0 June 8, 2026 — 64-bit ZIP32-bit ZIP
Release notes
* new format cpm86/cmd
* bug fixes - see https://github.com/upx/upx/milestone/23
5.1.1 March 5, 2026 — 64-bit ZIP32-bit ZIP
Release notes
* ELF: MIPS r3000 (32-bit) shared libraries are supported
* bug fixes - see https://github.com/upx/upx/milestone/22
5.1.0 January 7, 2026 — 64-bit ZIP32-bit ZIP
Release notes
* ELF: new format linux/riscv64
* bug fixes - see https://github.com/upx/upx/milestone/21
5.0.2 July 20, 2025 — 64-bit ZIP32-bit ZIP
Release notes
* bug fixes - see https://github.com/upx/upx/milestone/20
5.0.1 May 6, 2025 — 64-bit ZIP32-bit ZIP
5.0.0 February 20, 2025 — 64-bit ZIP32-bit ZIP
4.2.4 May 9, 2024 — 64-bit ZIP32-bit ZIP
4.2.3 March 27, 2024 — 64-bit ZIP32-bit ZIP
Release notes
* bug fixes - see https://github.com/upx/upx/milestone/16
4.2.2 January 3, 2024 — 64-bit ZIP32-bit ZIP
Release notes
* bug fixes - see https://github.com/upx/upx/milestone/15
4.2.1 November 1, 2023 — 64-bit ZIP32-bit ZIP
Release notes
* linux: /proc/self/exe now is optional
* windows: use SetFileTime to preserve sub-second file timestamps
* official Windows builds: revert activeCodePage change introduced in 4.2.0
* bug fixes - see https://github.com/upx/upx/milestone/14
4.2.0 October 26, 2023 — 64-bit ZIP32-bit ZIP
Release notes
* win32/pe and win64/pe: stricter relocation checks; please report regressions
* new option '--link' to preserve hard-links (Unix only; use with care)
* add support for NO_COLOR env var; see https://no-color.org/
* disable macOS support until we fix compatibility with macOS 13+
* bug fixes - see https://github.com/upx/upx/milestone/13
4.1.0 August 8, 2023 — 64-bit ZIP32-bit ZIP
Release notes
* ELF: handle shared libraries with more than 2 PT_LOAD segments
* bug fixes - see https://github.com/upx/upx/milestone/11
4.0.2 January 30, 2023 — 64-bit ZIP32-bit ZIP
Release notes
* bug fixes - see https://github.com/upx/upx/milestone/9
4.0.1 November 16, 2022 — 64-bit ZIP32-bit ZIP
Release notes
* bug fixes - see https://github.com/upx/upx/milestone/8

Most popular in Archivers

See all
  1. 7-ZipA file archiver with a high compression ratio.
  2. PeaZipA free file archiver utility and rar extractor for Windows and Linux, work with 200+ archive types and variants, handle spanned archives and support multiple archive encryption standards.
  3. ZstandardZstandard is a fast lossless compression algorithm, targeting real-time compression scenarios at zlib-level and better compression ratios. It's backed by a very fast entropy stage, provided by Huff0 and FSE library.
  4. UPXA free, secure, portable, extendable, high-performance executable packer for several executable formats.
  5. WinRARCompress, Encrypt, Package and Backup with only one utility.
  6. 7-Zip ZSFile archiver with support for Brotli, Fast-LZMA2, Lizard, LZ4, LZ5 and Zstandard
  7. PDFsam BasicA free, open source, multi-platform software designed to split, merge, extract pages, mix and rotate PDF files.
  8. NanaZipThe 7-Zip derivative intended for the modern Windows experience.
  9. lessmsiA tool to view and extract the contents of an Windows Installer (.msi) file.
  10. Caesium Image CompressorCompress your pictures up to 90% without visible quality loss.

Tags

Share