NanaZip 7.0 goes rolling, merges preview and stable into one build
The open-source Windows archiver that modernizes classic 7-Zip has adopted its first rolling-release model. NanaZip 7.0 has been released today, and the headline change is one you won't spot in the UI: preview and stable builds now share a single codebase. For a project that's grown past 15,600 GitHub stars, it's a quietly structural shift.
The release is tagged 7.0, version 2609.2, carrying a binary build of 7.0.1843.0. Kenji Mouri, the developer behind the @MouriNaruto handle, posted rather brief notes on GitHub.
"I'm excited to announce that we've released NanaZip 7.0, version 2609.2 (7.0.1843.0), now available for download."
It's modest copy for a release that quietly reorganizes how the whole project ships. As of this writing, it's already tagged as Latest on GitHub Releases.
Under the hood
The versioning change is the part that actually matters. In a rolling scheme, every stable release gets a matching Preview build, though not every Preview eventually lands in stable. The two channels differ only in how they're compiled.
The build number counts days since August 31, 2021, the day NanaZip first shipped. The revision counts releases on that specific build-day. So "7.0" is now a feature milestone rather than a fixed calendar date, and updates like this one are just more of the same continuous stream.
Keep in mind that this build syncs NanaZip's core with 7-Zip mainline 26.03. There's also a security fix worth flagging. A wrong-password failure used to break every ZIP archive until contributor dinhngtu caught and patched it. You'll also see a refreshed Brazilian Portuguese translation and a dependency swap from Mile.Project.Helpers to Mile.DotNet.Helpers, plus a handful of library bumps.
It's not a security hole in the usual sense, exactly. NanaZip handles a broad set of compression formats, and getting the crypto wrong on password-protected archives is precisely the kind of thing that bites people.
One person, many projects
Mouri isn't running this like a startup. He says so plainly in Issue #913, opened back in May 2026: NanaZip isn't his full-time job, and he's aiming for roughly one major stable version per year. That's honest, and it should reset anyone's expectations for a quarterly feature drop.
The money mostly comes through a $99.99 Sponsor Edition addon in the Microsoft Store. Its only real difference from the free version is a toolbar button that flips from "Sponsor NanaZip" to "Appreciate your sponsorship" after payment. That's all it does.
Not cheap. But $99.99 for a button label is a stretch, even if you genuinely want the project to keep going. Contributors and anyone who sponsored before March 30, 2024 get it free, and Mouri frames the whole thing as pricing open-source labor that would otherwise cost nothing. Fair enough.
Getting it
NanaZip 7.0 installs a few different ways. The Microsoft Store listing is the recommended path, with a separate product ID reserved for the Preview build. You can grab MSIX bundles and an XML license straight from GitHub Releases, pick up a portable zip, or push it through WinGet.
