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7-Zip Download v21.07
on: 12/29/2021 11:04 AM [ 16 comment(s) ]
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Here you can download the latest version of 7-Zip. 7-Zip is a file archiver with a high compression ratio. You can use 7-Zip on any computer, including a computer in a commercial organization. You don't need to register or pay for 7-Zip.
7-Zip is a file archiver with a high compression ratio for ZIP and GZIP formats, which is between 2 to 10% better than its peers, depending on the exact data tested. And 7-Zip boosts its very own 7z archive format that also offers a significantly higher compression ratio than its peers—up to 40% higher! This is mainly because 7-Zip uses LZMA and LZMA2 compression, with strong compression settings and dictionary sizes, to slow but vastly improve density. If a zip tool gains its appeal from its ability to efficiently compress files, then 7-Zip proves it has a little bit o’ magic.
7-Zip
After you effortlessly download and launch 7-Zip, you’ll quickly discover its simple and easy to navigate interface. The main toolbar contains 7-Zip’s most used features and there are several menus that allow you to dig deeper within. For example, the Extract button lets you easily browse for or accept the default destination directory for your file, while the View menu contains a Folder History, and the Favorites menu lets you save up to ten folders. 7-Zip also integrates with the Windows Explorer menus, displaying archive files as folders and providing a toolbar with drag-and-drop functions. You can also alternate between a single or dual-pane view.
Product Details
7-Zip offers several features that make it one of the best compression software options around. For example:
- Open architecture—The source code uses the GNU LGPL license, while the unRAR code is under a mixed license with GNU LGPL + unRAR restrictions.
- High compression ratio—Using its own 7z format with LZMA and LZMA2 compression, 7-Zip’s compression ratio is up to 40% higher than its peers. For ZIP and GZIP formats, 7-Zip provides a compression ratio that is 2-10% better than PKZip and WinZip.
- Strong AES-256 encryption—This includes both password protection of files and encryption of file names.
- Ability to use may compression, conversion, or encryption methods—For example 7-Zip:Integrates with Windows Shell—Using its menu options, you can integrate 7-Zip to the Windows Shell menu.
- Supports packing and unpacking for 7z, XZ, BZIP2, GZIP, TAR, ZIP, and WIM.
- Supports unpacking only for ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR, and Z.
- Supports a self-extracting capability for 7z format.
- Powerful file manager and command line versions—There’s also a plugin for FAR Manager.
- Localizations for 79 languages—This kind of support is why 7-Zip is the world’s favorite free compression software.
Version History for 7-Zip:
http://www.7-zip.org/history.txt
http://www.7-zip.org/history.txt
Editor's Note:
21.03 beta 2021-07-20 ------------------------- - The maximum dictionary size for LZMA/LZMA2 compressing was increased to 4 GB (3840 MiB). - Minor speed optimizations in LZMA/LZMA2 compressing.
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Kaarme
Senior Member
Posts: 2891
Joined: 2013-03-10
Senior Member
Posts: 2891
Joined: 2013-03-10
#5543366 Posted on: 05/03/2018 08:22 AM
Thanks for the heads-up! I doubt I'd have noticed a thing like this otherwise.
Thanks for the heads-up! I doubt I'd have noticed a thing like this otherwise.
386SX
Senior Member
Posts: 1424
Joined: 2017-06-26
Senior Member
Posts: 1424
Joined: 2017-06-26
#5543370 Posted on: 05/03/2018 08:37 AM
@BlueRay: Please keep in mind even update servers may infect themselfes. This has been done in the past multiple times. The last time I know was some kind of banking software which downloaded an infected update (crypto trojan) from its compromised update servers. Because autoupdates were ON by default, half its clients were infected.
On the one hand may be wise to let programs autoupdate themselfes if you trust them >>and the whole chain<<.
On the other hand it may be even better to disable autoupdates and do the patching the manual way on critical infrastructure. Remember the time when Windows 10 updates broke some computers? (Isn't it still a thing today?)
My grandma would be better off with autoupdates which >>I<< enable, for the most important programs.
Personally I feel safer with a weekly "patchday", where I download (or check for) program updates. A big PRO is you do not have to have dozens of programs running in the background, checking for updates every few minutes / hours. Saves bandwidth, ressources and therefore energy (a small bit). "Green IT by disabling autoupdaters." ;-)
I used 7-zip for many many years and still use it today. It offers all the formats you want your archive program to support. RAR, ZIP, 7Z, WIM, ISO and a lot more is supported. That is what I care of the most, after the fact it's free without any hidden fees and does not come with any spyware, adware, other crap bundled. ("Hi FlashPlayer!").
I do not care about the security issue found here. Honestly: Every program has these. But after escalating the issue to the publisher you see if you may trust them in the future. If a bug does not get patched, this is far worse from my point of view than a program who has thousands of bugs but they get fixed in week 1. The publishers of 7-zip did their job right and fixed the bug. They communicated this to the public the right way (AFTER the patch is available but still in a reasonable "short" period of time), so no bad feelings about this.
@BlueRay: Please keep in mind even update servers may infect themselfes. This has been done in the past multiple times. The last time I know was some kind of banking software which downloaded an infected update (crypto trojan) from its compromised update servers. Because autoupdates were ON by default, half its clients were infected.
On the one hand may be wise to let programs autoupdate themselfes if you trust them >>and the whole chain<<.
On the other hand it may be even better to disable autoupdates and do the patching the manual way on critical infrastructure. Remember the time when Windows 10 updates broke some computers? (Isn't it still a thing today?)
My grandma would be better off with autoupdates which >>I<< enable, for the most important programs.
Personally I feel safer with a weekly "patchday", where I download (or check for) program updates. A big PRO is you do not have to have dozens of programs running in the background, checking for updates every few minutes / hours. Saves bandwidth, ressources and therefore energy (a small bit). "Green IT by disabling autoupdaters." ;-)
I used 7-zip for many many years and still use it today. It offers all the formats you want your archive program to support. RAR, ZIP, 7Z, WIM, ISO and a lot more is supported. That is what I care of the most, after the fact it's free without any hidden fees and does not come with any spyware, adware, other crap bundled. ("Hi FlashPlayer!").
I do not care about the security issue found here. Honestly: Every program has these. But after escalating the issue to the publisher you see if you may trust them in the future. If a bug does not get patched, this is far worse from my point of view than a program who has thousands of bugs but they get fixed in week 1. The publishers of 7-zip did their job right and fixed the bug. They communicated this to the public the right way (AFTER the patch is available but still in a reasonable "short" period of time), so no bad feelings about this.
fantaskarsef
Senior Member
Posts: 12980
Joined: 2014-07-21
Senior Member
Posts: 12980
Joined: 2014-07-21
#5543371 Posted on: 05/03/2018 08:38 AM
IT department uses 7zip, no update queued as of right now.
IT department releases win10 on newer (Dell) laptops, and I'm not sure they know what to deactivate and what not.
As you might think, my trust in my company's IT department is not that big
IT department uses 7zip, no update queued as of right now.
IT department releases win10 on newer (Dell) laptops, and I'm not sure they know what to deactivate and what not.
As you might think, my trust in my company's IT department is not that big
BlueRay
Senior Member
Posts: 278
Joined: 2015-11-18
Senior Member
Posts: 278
Joined: 2015-11-18
#5543383 Posted on: 05/03/2018 09:20 AM
@386SX I understand that but a notification prompting user to go to the website and download the new version is the bare minimum for security. It is the most popular zip tool yet it expects users to read tech blogs to find out their version is not secure. This is bad.
@386SX I understand that but a notification prompting user to go to the website and download the new version is the bare minimum for security. It is the most popular zip tool yet it expects users to read tech blogs to find out their version is not secure. This is bad.
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Senior Member
Posts: 278
Joined: 2015-11-18
Yet it doesn't have an auto update or an update notifier. And this is why it's bad and dangerous when applications can't auto update.