# NanaZip 6.5.1749.0 — NanaZip 6.5 Final (6.5.1749.0)

- Product: NanaZip (https://whatsnew.fyi/product/nanazip)
- Vendor: M2-Team
- Date: 2026-06-16
- Version: 6.5.1749.0
- Original notes: https://github.com/M2Team/NanaZip/releases/tag/6.5.1749.0
- Permalink: https://whatsnew.fyi/product/nanazip/releases/6.5.1749.0
- Labels: Pre-release; Platforms: Windows

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **security** — Fixed security vulnerability CVE-2026-55780
- **security** — Fixed security vulnerability CVE-2026-55781
- **security** — Fixed security vulnerability CVE-2026-55782
- **security** — Fixed security vulnerability CVE-2026-55783
- **fixed** — Fix several issues for codecs
- **added** — Introduce optional build with AddressSanitizer (ASAN) support
- **changed** — Synchronize the 7-Zip ZS implementations to upstream repository
- **changed** — Update release tags rules in NanaZip Versioning
- **changed** — Improve the build tools implementations

I'm excited to announce that we've released the NanaZip 6.5 Final, now available for download.

Note: Read [NanaZip Technical Focus from Kenji Mouri](https://github.com/M2Team/NanaZip/issues/913) to clarify some future directions of NanaZip.

Starting with NanaZip 6.5 Final (6.5.1749.0), we have fixed some security vulnerabilities reported by Pig-Tail (Thepigtails):

- [CVE-2026-55780](https://github.com/M2Team/NanaZip/security/advisories/GHSA-ppm9-5267-rq72)
- [CVE-2026-55781](https://github.com/M2Team/NanaZip/security/advisories/GHSA-m34h-jf84-m74h)
- [CVE-2026-55782](https://github.com/M2Team/NanaZip/security/advisories/GHSA-qxhc-2v6p-wm8m)
- [CVE-2026-55783](https://github.com/M2Team/NanaZip/security/advisories/GHSA-q67r-9cfh-xc29)

##### Release Notes

- Fix several issues for codecs. (Contributed by dinhngtu. Thanks to Pig-Tail.)
- Introduce optional build with AddressSanitizer (ASAN) support. (Contributed by JarLob.)
- Synchronize the 7-Zip ZS implementations to https://github.com/mcmilk/7-Zip-zstd/tree/d8d651b72a6a85353a23d3f19e0fd2d96c0f36b4. (Except the NanaZip File Manager.) (Thanks to Sergey G. Brester and Tino Reichardt.) (Note: Actually no useful changes since last synchronization.)
- Update release tags rules in NanaZip Versioning.
- Improve the build tools implementations.

##### Download

- MSIX Package: NanaZipPreview_6.5.1749.0.msixbundle
  - SHA-256: 26c3364a346bece3366ad2a50b9f69eeee1b20ec5bbc6ae2ba0a88d1e1a0f49c

- License XML: NanaZipPreview_6.5.1749.0.xml
  - SHA-256: 20c21555ecc46f1c761c64ad8508cd17fefa310fa634439e8900f8654d501e09

- Portable package: NanaZipPreview_6.5.1749.0_Binaries.zip
  - SHA-256: ccf4495513aabc3417774b746f5324160b5b72db70aab93c03660b80ce54b59c

 - Debug Symbols: NanaZipPreview_6.5.1749.0_DebugSymbols.zip
   - SHA-256: 50b1fde6ef09391b8110db9b07bea372ccbaa2b286f32b60a9640e379fd0675d

Kenji Mouri