- **Every version of every file is kept.** The computer's history records each save, move, rename and deletion on a user's drive or the Shared drive the moment it happens, keeping the file's bytes once however many saves share them and sharing the current version's bytes with the file itself where the disk allows, so a drawing deleted and gone from the Recycle Bin is still there and keeping history costs room only for what changed; a pass a minute after boot and every six hours picks up anything written another way. It replaces the git snapshots taken every five minutes, which missed what came and went between two of them and rescanned the whole drive each time; the old snapshot folder stays, readable with git, until an administrator removes it from Disk Cleanup. An administrator can **Erase from history** one file for good, with a reason, from the explorer's right-click.
- **What takes space…**, on the storage sheet and on a drive's or folder's right-click, shows what fills it as a list and a treemap, coloured by kind; administrators also see NoGaOS's own files and the file history, and can erase a file or a folder's worth of history from there. The storage sheet shows the file history as a line of its own.
- **Backup** is a new Control Panel applet: the history is copied every hour to a network folder of your choice, each computer under its own folder, resumable, with **Back up now** and **Verify**. The copies are plain files, not encrypted, and the applet says so.
- Fixes: photos from a phone show upright in thumbnails and the picture viewer; the identity file's password takes longer to guess; the network discovery no longer resets itself whenever the Wi-Fi signal moves.
Checksum and signature
```
e2f2cb9c3dcc39315784d9c931070eda69ba9740619009ad19d8f98dec0056e9 nogaos-246.jar
```
The `.sha256` file is signed with the NoGaOS release key (`.sha256.sig`, Ed25519); the public key ships inside every build as `release-keys.pem`. To check a download by hand: `sha256sum -c nogaos-246.jar.sha256` and `openssl pkeyutl -verify -pubin -inkey release-keys.pem -rawin -in nogaos-246.jar.sha256 -sigfile nogaos-246.jar.sha256.sig`.
Included dependencies
| Library | Version | Size | License |
|:---|:---|---:|:---|
| `aopalliance` | 1.0 | 4 KB | Public Domain |
| `asm` | 9.11.1 | 128 KB | BSD-3-Clause |
| `asn-one` | 0.6.0 | 65 KB | The Apache License, Version 2.0 |
| `bcprov-jdk18on` | 1.85.2 | 10039 KB | Bouncy Castle Licence |
| `checker-qual` | 3.12.0 | 203 KB | The MIT License |
| `common-image` | 3.15.3 | 77 KB | The BSD License |
| `common-io` | 3.15.3 | 90 KB | The BSD License |
| `common-lang` | 3.15.3 | 119 KB | The BSD License |
| `commonmark` | 0.31.0 | 215 KB | BSD-2-Clause |
| `commons-codec` | 1.19.0 | 365 KB | Apache-2.0 |
| `commons-compress` | 1.28.0 | 1091 KB | Apache-2.0 |
| `commons-io` | 2.20.0 | 550 KB | Apache-2.0 |
| `commons-lang3` | 3.18.0 | 686 KB | Apache-2.0 |
| `commons-logging` | 1.4.0 | 74 KB | Apache-2.0 |
| `error_prone_annotations` | 2.27.0 | 18 KB | Apache 2.0 |
| `failureaccess` | 1.0.1 | 4 KB | The Apache Software License, Version 2.0 |
| `fontbox` | 3.0.8 | 1608 KB | Apache-2.0 |
| `gluegen-rt` | v2.4.0 | 397 KB | BSD-2 License |
| `gson` | 2.11.0 | 291 KB | Apache-2.0 |
| `guava` | 31.0.1-jre | 2904 KB | Apache License, Version 2.0 |
| `guice` | 7.0.0 | 782 KB | The Apache Software License, Version 2.0 |
| `imageio-bmp` | 3.15.3 | 70 KB | The BSD License |
| `imageio-core` | 3.15.3 | 122 KB | The BSD License |
| `imageio-jpeg` | 3.15.3 | 92 KB | The BSD License |
| `imageio-metadata` | 3.15.3 | 81 KB | The BSD License |
| `imageio-webp` | 3.15.3 | 79 KB | The BSD License |
| `j2objc-annotations` | 1.3 | 8 KB | The Apache Software License, Version 2.0 |
| `jackson-annotations` | 2.22 | 82 KB | The Apache Software License, Version 2.0 |
| `jackson-core` | 3.2.4 | 598 KB | The Apache Software License, Version 2.0 |
| `jackson-databind` | 3.2.4 | 1943 KB | The Apache Software License, Version 2.0 |
| `jakarta.inject-api` | 2.0.1 | 10 KB | The Apache Software License, Version 2.0 |
| `jcef-api` | jcef-17e805a+cef-152.0.6+g708dc14+chromium-152.0.7977.83 | 218 KB | BSD License |
| `jcefmaven` | 152.0.6 | 30 KB | Apache-2.0 License |
| `jmdns` | 3.6.4 | 215 KB | Apache License, Version 2.0 |
| `jna-jpms` | 5.16.0 | 1956 KB | LGPL-2.1-or-later |
| `jna-platform-jpms` | 5.16.0 | 1344 KB | LGPL-2.1-or-later |
| `jogl-all` | v2.4.0 | 5031 KB | BSD-2 License |
| `jspecify` | 1.0.1 | 2 KB | The Apache License, Version 2.0 |
| `jsr305` | 3.0.2 | 19 KB | The Apache Software License, Version 2.0 |
| `listenablefuture` | 9999.0-empty-to-avoid-conflict-with-guava | 2 KB | The Apache Software License, Version 2.0 |
| `logback-classic` | 1.6.6 | 285 KB | EPL-2.0 |
| `logback-core` | 1.6.6 | 638 KB | EPL-2.0 |
| `mbassador` | 1.3.2 | 96 KB | MIT license |
| `pdfbox-io` | 3.0.8 | 50 KB | Apache-2.0 |
| `pdfbox` | 3.0.8 | 2022 KB | Apache-2.0 |
| `slf4j-api` | 2.0.20 | 68 KB | MIT |
| `smbj` | 0.15.0 | 667 KB | The Apache License, Version 2.0 |
| `vlcj-natives` | 4.12.0 | 93 KB | GPL v3 |
| `vlcj` | 4.12.1 | 399 KB | GPL v3 |