7-Zip / Discussion / Open Discussion: 7-Zip 25.01

Igor Pavlov - 2025-08-03

7-Zip 25.01 was released.

Download

7-Zip for 64-bit Windows x64:
https://7-zip.org/a/7z2501-x64.exe

7-Zip for 32-bit Windows x86:
https://7-zip.org/a/7z2501.exe

7-Zip for 64-bit Windows ARM64:
https://7-zip.org/a/7z2501-arm64.exe

7-Zip Extra: standalone console version, 7z DLL, Plugin for Far Manager:
https://7-zip.org/a/7z2501-extra.7z

7-Zip (console version) for 64-bit linux x86-64 (AMD64):
https://7-zip.org/a/7z2501-linux-x64.tar.xz

7-Zip (console version) for 32-bit linux x86:
https://7-zip.org/a/7z2501-linux-x86.tar.xz

7-Zip (console version) for 64-bit linux ARM64:
https://7-zip.org/a/7z2501-linux-arm64.tar.xz

7-Zip (console version) for 32-bit linux ARM:
https://7-zip.org/a/7z2501-linux-arm.tar.xz

7-Zip (console version) for macOS (ARM64 and x86-64):
https://7-zip.org/a/7z2501-mac.tar.xz

What's new in 7-Zip 25.01:

The code for handling symbolic links has been changed to provide greater security when extracting files from archives.
Command line switch -snld20 can be used to bypass default security checks when creating symbolic links.

😕
1
👍
5
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Charlie Opeke - 2025-08-04

can somebody tell me which versions of 7-zip still receive patches, support and bug fixes? or should I just assume the latest stable version is the only active version?

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- Gabriel Magana-Gonzalez - 2025-08-04
  
  Seeing from the changelog, it's only the latest version that receives changes. This is not an official position, though.
  
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mrfearless - 2025-08-05

Noticed on bluesnews.com website a link to the new 7-zip release on github: https://github.com/ip7z/7zip

is this legit? repo and user look new. is it an example of a supply chain attack?

Just thought I would mention it just in case. Source from bluesnews is some web page called broadband bulletin: https://broadbandbulletin.com/d/4195-7-zip-v2501-released

Best regards

mrfearless

Last edit: mrfearless 2025-08-05

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teoberi - 2025-08-05

Is legit!

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mrfearless - 2025-08-05

Ok grand, just wanted to double check. No harm in verifying this i guess, specially nowadays with lots of shady stuff.

Thanks for letting me know.

Cheers.

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lelik007 - 6 days ago

@ipavlov Igor, please take a look what's going on here, there's an archive:
7zFM shows: 543 Files, 53 Folders - this is right.
7z l shows: 543 files, 268 folders - this isn't right, but we don't know why this happens.
I used 7z2501-x64.exe for testing.

Last edit: Igor Pavlov 6 days ago

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- Igor Pavlov - 6 days ago
  
  call
  
  7z l archive.7z > a.txt
  
  and look a.txt lines.
  
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  - lelik007 - 6 days ago
    
    @ipavlov Yes, the file @tansy gave is that archive. Thanks for the quick response.
    I made a mirror just in case.
    @tansy
    
    It's not limited to current version as our behaves the same for long time, if not forever.
    
    Well, I didn't dig this deep.
    
    Last edit: Igor Pavlov 6 days ago
    
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    - Igor Pavlov - 6 days ago
      
      call
      
      7z l archive.7z > a.txt 7z l archive.7z -slt > slt.txt
      
      look it and think.
      if you don't see the reason of problem, upload that listing files to some another thread and describe the problem.
      
      Last edit: Igor Pavlov 6 days ago
      
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Alexey Shelaev - 6 days ago

@ipavlov thanks for the release!
Having issue when building Alone2 on macOS with recent clang. The command I use make -f ../../cmpl_mac_arm64.mak
The error I get

clang++ -arch arm64 -O2 -c -Werror -Wall -Wextra -Weverything -Wfatal-errors -Wno-poison-system-directories -DNDEBUG -D_REENTRANT -D_FILE_OF FSET_BITS=64 -D_LARGEFILE_SOURCE -fPIC -std=c++11 -o b/m_arm64/ApfsHandler.o ../../Archive/ApfsHandler.cpp ../../Archive/ApfsHandler.cpp:3542:3: fatal error: 'switch' missing 'default' label [-Wswitch-default] 3542 | switch (propID) | ^ 1 error generated.

The cure I applied: added -Wno-switch-default to CFLAGS_LIST inside warn_clang_mac.mak
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- Igor Pavlov - 5 days ago
  
  We have such lines CPP\Common\Common0.h
  
  #if defined(Z7_LLVM_CLANG_VERSION) && __clang_major__ >= 18 // 18.1.0RC #pragma GCC diagnostic ignored "-Wswitch-default" #endif
  
  Can you suggest exact lines to update it?
  
  we have such macros:
  
  #if defined(__clang__) # define Z7_CLANG_VERSION (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) #endif #if defined(__clang__) && defined(__apple_build_version__) # define Z7_APPLE_CLANG_VERSION Z7_CLANG_VERSION #elif defined(__clang__) # define Z7_LLVM_CLANG_VERSION Z7_CLANG_VERSION
  
  So we must know what exact versions for apple and llvm switch-default must be ignored.
  please call
  
  ./7zz b
  
  it will show version of clang compiler.
  
  Last edit: Igor Pavlov 5 days ago
  
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  - Alexey Shelaev - 5 days ago
    
    My apple clang is 17.0.0 installed with Xcode 16.4, so the compilation works for me with the following modification of Common0.h
    
    #if defined(Z7_LLVM_CLANG_VERSION) && __clang_major__ >= 18 /*18.1.0RC*/ \ || defined(Z7_APPLE_CLANG_VERSION) && __clang_major__ >= 17 /*Apple clang version 17.0.0 (clang-1700.0.13.5)*/ #pragma GCC diagnostic ignored "-Wswitch-default" #endif
    
    I didn't find a straightforward way to install an older apple clang, so I can't confirm by tests the exact version since which the warnning fires. Though online llvm documentation states it starts firing since clang 18, and unofficial wiki versions mapping indicates that apple clang 17 is based on llvm 19, therefore the suggested modification would probably work correctly
    
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    - Igor Pavlov - 5 days ago
      
      thanks.
      probably even some old xcode versions support
      
      #pragma GCC diagnostic ignored "-Wswitch-default"
      
      so condition __clang_major__ >= 17 can be relaxed.
      
      Last edit: Igor Pavlov 5 days ago
      
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arhfk - 4 days ago

i really enjoy 7-Zip since version 4.23. it's always a good feeling to extract or pack files with 7-Zip.

the most reliable software i have met.

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7-Zip 25.01

A free file archiver for extremely high compression

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7-Zip 25.01

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What's new in 7-Zip 25.01:

7-Zip 25.01

A free file archiver for extremely high compression

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What's new in 7-Zip 25.01:

7-Zip 25.01