Ubuntu 22.04 LTS 发布！
Ubuntu Ubuntu 22.04 LTS

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> Ubuntu 22.04 LTS 带来了许多惊喜，还带来了 GNOME 42，以及 Canonical 的新品牌/标志。
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![](/data/attachment/album/202204/22/085312srr5va3j5i5f2g5r.jpg)


迫不及待地想尝试 Ubuntu 22.04 LTS？那么，它终于可以下载和升级了。（LCTT 译注：升级还要等几天，还存在一些小问题）


它带来了 [大量令人印象深刻的功能](https://itsfoss.com/ubuntu-22-04-release-features/)，其中 GNOME 42 和树莓派桌面支持是其主要亮点。


现在，它已经就绪。在你决定尝试之前，让我们花点时间来看看这个版本最重要的变化。


### Ubuntu 22.04 LTS 的新变化


Ubuntu 22.04 是一次主要版本升级，其包括了桌面环境的改进、视觉上的变化和一些新增的功能。


如果你正在使用 Ubuntu 20.04 LTS，想知道它们之间的区别，你可以查看我们的《[Ubuntu 20.04 vs Ubuntu 22.04 LTS](https://itsfoss.com/ubuntu-20-04-vs-22-04/)》文章来了解。


毫无疑问，这是一个 <ruby> <a href="https://itsfoss.com/long-term-support-lts/">  长期支持 </a> <rt>  Long-Term Support </rt></ruby> （LTS）版本。所以，你可以期待它维护更新到 2027 年，也就是五年的支持。一些最显著的变化包括：


#### 1、强调色的选择


虽然大多数基于 Ubuntu 的 Linux 发行版提供了设置强调色的功能，但你必须使用 <ruby> <a href="https://itsfoss.com/gnome-tweak-tool/">  GNOME 优化 </a> <rt>  GNOME Tweaks </rt></ruby> 才能做到。


![](/data/attachment/album/202204/22/085312ftr6tjpxvx50jdwn.jpg)


现在，在 Ubuntu 22.04 中，你可以轻松地设置你所选择的强调色，它会影响到文件夹、通知区和桌面体验的其他元素。


#### 2、GNOME 42


![](/data/attachment/album/202204/22/085312vuro9n9p0qrronqj.jpg)


期待已久的桌面环境升级来了。虽然 Ubuntu 22.04 的 GNOME 实现并不提供水平停靠区，但会有其它好处加成。


你应该能够在 Ubuntu 22.04 LTS 中体验到所有 [GNOME 42 的优点](https://news.itsfoss.com/gnome-42-release/)。不幸的是，你仍然会发现几个版本号是 41 的应用程序。


开发者提到，他们需要更多的时间来测试使用 [libadwaita](https://news.itsfoss.com/gnome-libadwaita-library/) 的应用程序。


话虽如此，在你继续阅读时，我也会提到 GNOME 42 所带来的有趣的更多功能。


#### 3、新的屏幕截图工具


![](/data/attachment/album/202204/22/085312d1887fed8rypjzer.jpg)


与 Ubuntu 20.04 LTS 不同，你不能用 `PrtScrn`（或任何其他指定的快捷键）来直接抓拍全屏图片。


相反，如果你按下快捷键来截图，就会弹出来这个新的截图工具。


这不仅体验更加直观，而且还支持屏幕录制。因此，这是一个相当令人激动的变化！


#### 4、深色模式的改进


虽然我们已经有了深色模式，但它并不是一个完美的系统级实现。


感谢 [elementary OS 6](https://news.itsfoss.com/elementary-os-6-features/)，GNOME 42 受到启发，实现了系统级的深色模式，更好地融合在一起以保持一致性。


![](/data/attachment/album/202204/22/085313weh2zhenl19hlywz.png)


#### 5、Firefox 变成了 Snap 版本


![](/data/attachment/album/202204/22/085313hcijs2m2tmcbmb9s.png)


从 deb 包到 Snap 的过渡已经进行了一段时间了。


在 Ubuntu 22.04 中，Firefox 现在将默认以 Snap 包出现，在 Mozilla 的共同努力下，旨在推动更快的安全更新，并确保无需维护许多东西即可实现跨发行版的支持。


沙盒化的 Firefox 体验也应该可以提供更好的安全性。


你可以在这个 [论坛帖子](https://discourse.ubuntu.com/t/feature-freeze-exception-seeding-the-official-firefox-snap-in-ubuntu-desktop/24210) 中阅读更多关于该决定背后的信息。


#### 6、桌面图标出现在底部


![](/data/attachment/album/202204/22/085313rtptxz6sxptnnslz.jpg)


默认情况下，桌面图标可以在右上角的区域看到，靠近停靠区。


现在，在 Ubuntu 22.04 中，默认的桌面图标位置已经被改为底部。你可以通过“<ruby> 外观 <rt>  Appearance </rt></ruby>”设置中的选项来改变这一点。


#### 7、缩小停靠区的能力


如果你不喜欢停靠区占据了整个左侧区域，你可以改变它。


你需要禁用“<ruby> 外观 <rt>  Appearance </rt></ruby>”调整中停靠区设置下的“<ruby> 面板 <rt>  Panel </rt></ruby>”模式，如下图所示：


![](/data/attachment/album/202204/22/085313k0hoaaabfy07x07j.jpg)


这将分离出停靠区，并提供现代桌面体验的浮动效果。


#### 8、树莓派桌面支持


Ubuntu 22.04 是第一个也可用于树莓派的桌面 LTS 版本。


随着 [zswap 的引入](https://news.itsfoss.com/ubuntu-desktop-raspberry-pi-4/)，树莓派的性能应该会在 Ubuntu 22.04 中得到显著提升。


它甚至可以 [在 2GB 的树莓派 4 变体型号上运行](https://news.itsfoss.com/ubuntu-desktop-raspberry-pi-4/)。你可以在你的树莓派上测试这些改进。


#### 9、使用 Ubuntu Advantage


![](/data/attachment/album/202204/22/085313sgzygi9f0sg7ysh9.jpg)


Ubuntu Advantage 是为企业和商家提供的高级订阅，无需重新启动即可获得重要的安全更新。


对于大多数桌面用户来说，这不是什么有用的东西。然而，如果你想获得 Ubuntu Advantage 订阅，并将你的系统接驳到它，你可以通过导航到“<ruby> 软件 &amp; 更新 <rt>  Software &amp; Updates </rt></ruby>”下的 Livepatch 部分轻松做到这一点。


#### 10、Linux 内核 5.17 和 Linux 内核 5.15 LTS


[Linux 内核 5.15 LTS](https://news.itsfoss.com/linux-kernel-5-15-release/) 是一个重要的升级，它改进了 NTFS 驱动，对即将到来的英特尔独立显卡提供了初步支持，并有更多的性能改进。


对于你的桌面计算机，你应该注意到 Linux 内核 5.15 开箱即用。


Ubuntu 服务器版也采用了 Linux 内核 5.15 LTS。


然而，Ubuntu 22.04 也在最新一代认证设备（OEM）上使用了 [Linux 内核 5.17](https://news.itsfoss.com/linux-kernel-5-17-release/)。


因此，在这个版本中，Ubuntu 根据产品的不同打包了多个内核。


#### 11、RISC-V 的现场镜像


从 Ubuntu 22.04 开始，你会发现单独的可用 RISC-V 架构的<ruby> 现场镜像 <rt>  live image </rt></ruby>。


#### 其他变化


除了上面提到的主要变化外，升级后的其他一些重大变化包括。


* 较新的软件包，如 OpenSSL 3.0、Ruby 3.0、Python 3.10、PHP 8.1 等。
* 更新的应用程序，包括 Firefox 99、LibreOffice 7.3 和Thunderbird 91。


你可以看一下它的 [官方发布说明](https://discourse.ubuntu.com/t/jammy-jellyfish-release-notes/24668) 来探索所有的技术变化。


### 下载或升级到 Ubuntu 22.04 LTS


如果你想通过使用 ISO 进行全新安装来体验新的 LTS 版本，请前往下面链接的官方网站进行下载。



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> [下载 Ubuntu 22.04 LTS](https://ubuntu.com/download/desktop)
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而当它的更新可用时，你可以参考我们的 [升级指南](https://itsfoss.com/upgrade-ubuntu-version/)。



> 
> **注意：** 你可以进行全新的安装，但是你还不能升级到 Ubuntu 22.04 LTS（由于 snapd 和 update-notifier 软件包的错误有待修复）。你应该在接下来的几天里收到更新通知。
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---


via: <https://news.itsfoss.com/ubuntu-22-04-release/>


作者：[Ankush Das](https://news.itsfoss.com/author/ankush/) 选题：[lujun9972](https://github.com/lujun9972) 译者：[wxy](https://github.com/wxy) 校对：[wxy](https://github.com/wxy)


本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出


OK
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![](/assets/images/pikapods-banner-v3.webp)

Can’t wait to try Ubuntu 22.04 LTS? Well, it is finally available to download and upgrade.

It brings in a [ton of impressive features,](https://itsfoss.com/ubuntu-22-04-release-features/?ref=news.itsfoss.com) having GNOME 42 and Raspberry Pi desktop support as its key highlights.

Now that it is here. Let us take a moment to check out the most significant changes with this release before you decide to give it a try.

## Ubuntu 22.04 LTS: What’s New?

Ubuntu 22.04 is a major upgrade with desktop environment enhancements, visual changes, and a couple of added functionalities.

If you are using Ubuntu 20.04 LTS, and want to know the differences, you can check our [Ubuntu 20.04 vs Ubuntu 22.04 LTS](https://itsfoss.com/ubuntu-20-04-vs-22-04/?ref=news.itsfoss.com) article to explore.

Undoubtedly, it is a [Long-Term Release](https://itsfoss.com/long-term-support-lts/?ref=news.itsfoss.com) version. So, you can expect maintenance updates until 2027, i.e., five-year support. Some of the most considerable changes include:

### 1. Accent Color Selection

While most other Ubuntu-based Linux distributions offered the ability to set an accent color, you had to use [GNOME Tweaks](https://itsfoss.com/gnome-tweak-tool/?ref=news.itsfoss.com) to do it.

![ubuntu 22.04](https://news.itsfoss.com/content/images/wordpress/2022/03/ubuntu-22-04-accent-change.jpg)

Now with Ubuntu 22.04, you can easily set the accent color of your choice that affects folders, notification area, and other elements of your desktop experience.

### 2. GNOME 42

![Ubuntu 22.04](https://news.itsfoss.com/content/images/wordpress/2022/04/ubuntu-22-04-desktop.jpg)

The much-awaited desktop environment upgrade is here. While the GNOME implementation with Ubuntu 22.04 does not feature a horizontal dock, you should get the rest of the benefits added.

You should be able to experience all the [goodness of GNOME 42](https://news.itsfoss.com/gnome-42-release/) with Ubuntu 22.04 LTS. Unfortunately, you will still find several applications at 41 version numbers.

The developers mention that they need more time to test apps making use of [libadwaita](https://news.itsfoss.com/gnome-libadwaita-library/).

That being said, I shall also mention the interesting additions made possible by GNOME 42 as you read on.

### 3. New Screenshot Tool

![ubuntu 22.04](https://news.itsfoss.com/content/images/wordpress/2022/03/ubuntu-22-04-screenshot-ui.jpg)

Unlike Ubuntu 20.04 LTS, you do not directly snap a full-screen picture with the **PrtScrn** (or any other assigned shortcut key).

Instead, the new screenshot tool pops up if you press the shortcut key to trigger a screenshot.

It is not only an intuitive experience, but it also supports screen recording. So, that’s quite an exciting change!

### 4. Dark Mode Improvements

While we already had a dark mode, it wasn’t a perfect system-wide implementation.

Thanks to [elementary OS 6](https://news.itsfoss.com/elementary-os-6-features/), GNOME 42 was inspired to implement a system-wide dark mode that blends in better to maintain consistency.

![Ubuntu 22.04](https://news.itsfoss.com/content/images/wordpress/2022/03/ubuntu-22-04-dark-mode-1024x773.png)

### 5. Firefox as Snap

![Firefox snap](https://news.itsfoss.com/content/images/wordpress/2022/03/firefox-as-snap.png)

The transition from the deb package to Snap has been in progress for a while now.

With Ubuntu 22.04, Firefox will now be included by default as a Snap package with a combined effort from Mozilla aiming to push faster security updates and ensure cross-distribution support without needing to maintain numerous things.

The sandboxed Firefox experience should also offer improved security.

You can read more about the decision behind it in [the forum post](https://discourse.ubuntu.com/t/feature-freeze-exception-seeding-the-official-firefox-snap-in-ubuntu-desktop/24210?ref=news.itsfoss.com).

### 6. Desktop Icons in the bottom

![Ubuntu 22.04](https://news.itsfoss.com/content/images/wordpress/2022/04/ubuntu-22-04-desktop-icon.jpg)

By default, the desktop icons could be seen in the top-right area, near the dock.

Now, with Ubuntu 22.04, the default desktop icon position has been changed to the bottom. You can change this from the options available in the appearance settings.

### 7. Ability to Shrink the Dock

If you dislike the dock taking up the entire left-side area, you can change that.

You need to disable the “Panel” mode under the Dock settings in Appearance tweaks, as shown in the image below:

![Ubuntu 22.04](https://news.itsfoss.com/content/images/wordpress/2022/04/ubuntu-22-04-dock-shrink.jpg)

This detaches the dock and provides a floating effect for a modern desktop experience.

### 8. Raspberry Pi Desktop Support

Ubuntu 22.04 is the first desktop LTS release that can also be used for Raspberry Pi.

With the [introduction of zswap](https://news.itsfoss.com/ubuntu-desktop-raspberry-pi-4/), performance on Raspberry Pi boards should see a significant boost with Ubuntu 22.04.

It can even [run on a 2 GB Raspberry Pi 4 variant](https://news.itsfoss.com/ubuntu-desktop-raspberry-pi-4/). You can test these improvements on your Raspberry Pi boards.

### 9. Access to Ubuntu Advantage

![Ubuntu 22.04](https://news.itsfoss.com/content/images/wordpress/2022/04/ubuntu-livepatch.jpg)

Ubuntu Advantage is a premium subscription for businesses and enterprises to get critical security updates without needing to restart it.

It is not something useful for most desktop users. However, if you want to get an Ubuntu Advantage subscription and attach your system to it, you can easily do that by navigating to the Livepatch section under Software & Updates.

### 10. Linux Kernel 5.17 and Linux Kernel 5.15 LTS

[Linux Kernel 5.15 LTS](https://news.itsfoss.com/linux-kernel-5-15-release/) is a significant upgrade with an improved NTFS driver, initial support for the upcoming Intel discrete graphics, and more performance improvements.

You should notice Linux Kernel 5.15 out of the box for your desktop.

The Ubuntu Server also features the Linux Kernel 5.15 LTS.

However, Ubuntu 22.04 also uses [Linux Kernel 5.17](https://news.itsfoss.com/linux-kernel-5-17-release/) on the latest generations of certified devices (OEM).

So, with this release, Ubuntu packs in multiple kernels as per the product.

### 11. Live Image for RISC-V

Starting with Ubuntu 22.04, you will find a separate live image available for the RISC-V architecture.

### Other Changes

In addition to the major changes mentioned above, some other significant changes with the upgrade include:

- Newer software packages like OpenSSL 3.0, Ruby 3.0, Python 3.10, PHP 8.1, etc.
- Updated applications include Firefox 99, LibreOffice 7.3, and Thunderbird 91

You can take a look at its [official release notes](https://discourse.ubuntu.com/t/jammy-jellyfish-release-notes/24668?ref=news.itsfoss.com) to explore all the technical changes.

## Download or Upgrade to Ubuntu 22.04 LTS

If you want to experience the new LTS release by performing a fresh installation using the ISO, head to the official website linked in the button below to download it.

You can refer to our [upgrade guide](https://itsfoss.com/upgrade-ubuntu-version/?ref=news.itsfoss.com) when it is available as an update.

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