Ubuntu 16.04.4 出版

剛剛收到信看到 Ubuntu 16.04.4 LTS 出版:「Ubuntu 16.04.4 LTS released」,與上個版本 Ubuntu 16.04.3 LTS 比較完整的差異可以在「XenialXerus/ReleaseNotes/ChangeSummary/16.04.4 - Ubuntu Wiki」這邊看到。

如果照慣例,這應該會是倒數第二個 16.04 的版本,在 18.04 推出後會推最後一包 Ubuntu 16.04.5 LTS。不過這也只是慣例而已... (從 12.04 之後都照這個方式在走)

Ubuntu 18.04 LTS Minimal Image 的大小

看到「RFC: Ubuntu 18.04 LTS Minimal Images」這篇,在蒐集將來要出的 Ubuntu 18.04 LTS Minimal Image 的意見...

The Ubuntu Minimal Image is the smallest base upon which a user can apt install any package in the Ubuntu archive.

雖然應該還會有改變,不過以目前的版本來看,可以看出壓縮前後兩種版本都比 16.04 小了不少:

對需要這些 image 的人來說 (像是當作 Docker 的 base image),小一點操作起來也比較開心...

Ubuntu 18.04 將從 Wayland 換回 Xorg...

在「Ubuntu 18.04 LTS is Switching back to Xorg」這邊看到 Ubuntu 18.04 將要從 Wayland 換回 Xorg 的消息,只能說不意外 XDDD

Ubuntu 官方的說明在「Bionic Beaver 18.04 LTS to use Xorg by default」這邊,文章裡面給了三個理由:

  • Screen sharing in software like WebRTC services, Google Hangouts, Skype, etc works well under Xorg.
  • Remote Desktop control for example RDP & VNC works well under Xorg.
  • Recoverability from Shell crashes is less dramatic under Xorg.

講白了就是還有一堆東西有問題,看起來在 17.10 導入 Wayland 後沒搞定:

17.10, released in October 2017, ships with the Wayland based graphics server as the default and the Xorg based equivalent is available as an option from the login screen.

在 18.04 預設會用 Xorg,但系統內還是會有 Wayland 讓使用者可以選:

The Wayland session will still be available, pre-installed, for people to use, but for our ‘out of the box’ users the Ubuntu experience needs to be stable and provide the features they have come to expect and use in daily life and Xorg is the best choice here, at least for 18.04 LTS, but for 18.10 we will re-evaluate Wayland as the default.

再測個兩年吧 XD

AWS 推出第二代的官方 Linux AMI:Amazon Linux 2

AWS 推出了第二代的官方 Linux AMI:「Introducing Amazon Linux 2」。這個版本提供五年 LTS 維護:

Amazon Linux 2 will offer extended availability of software updates for the core operating system through 5 years of long-term support and provides access to the latest software packages through the Amazon Linux Extras repository.

然後也大致提了一下內容物:

Amazon Linux 2 provides a modern execution environment with LTS Kernel (4.9) tuned for optimal performance on Amazon Web Services (AWS), systemd support, and newer tooling (gcc 7.2.1, glibc 2.25, binutils 2.27).

不過對 YUM-based 的系統不是很愛,應該還是會繼續龜在 Ubuntu 下...

Node.js 第一個 8.x LTS 推出

推出啦:「Node v8.9.0 (LTS)」,另外可以看「NEWS: Node.js 8 Moves into Long-Term Support and Node.js 9 Becomes the New Current Release Line」這篇。

從 6 到 8 多了 async & await (ES7),應該會是對整個生態系改變最大的功能了,可以預期會有一堆人濫用... XD

剛剛測 nlts 參數發現還沒更新,先用 n 8.9.0 換上去...

Laravel 5.5 釋出,第二個 LTS 版本

Laravel 推出第二個 LTS 版本,5.5 版:「Laravel 5.5 LTS is Now Released」。

當初 Taylor Otwell 對 LTS 還蠻感冒的 (參考去年的 tweet),居然推出了...

有 LTS 對於商業應用的維護來說還是方便不少... 大概是考慮到這個原因,所以還是推出了 :o

django 的 LTS

看到「Django 1.11 released」這篇才發現 django 也有設計 LTS 機制... 在「Django’s release process」這邊有介紹:

Certain feature releases will be designated as long-term support (LTS) releases. These releases will get security and data loss fixes applied for a guaranteed period of time, typically three years.

所以是提供三年的維護期...

Amazon EC2 上的 Ubuntu 的效能提昇

UbuntuAWS 合作,對 AWS 上 EC2 的 kernel 最佳化:「Ubuntu on AWS gets serious performance boost with AWS-tuned kernel」。

透過各界面拉出來的 Ubuntu 16.04 都將會是對 kernel 最佳化過的版本了:

As of March 29th, Ubuntu Cloud Images for Amazon have been enabled with the AWS-tuned Ubuntu kernel by default. The AWS-tuned Ubuntu kernel will receive the same level of support and security maintenance as all supported Ubuntu kernels for the duration of the Ubuntu 16.04 LTS.

可以看到大量的改善:

  • Up to 30% faster kernel boot speeds, on a 15% smaller kernel package
  • Full support for Elastic Network Adapter (ENA), including the latest driver version 1.1.2, supporting up to 20 Gbps network speeds for ENA instance types (currently I3, P2, R4, X1, and m4.16xlarge)
  • Improved i3 instance class support with NVMe storage disks under high IO load
  • Increased I/O performance for i3 instances
  • Improved instance initialization with NVMe backed storage disks
  • Disabled CONFIG_NO_HZ_FULL to eliminate deadlocks on some instance types
  • Resolved CPU throttling with AWS t2.micro instances

所以先前打包好的 AMI 都要再重打一次了... @_@

Google Chrome 將在明年三月停止 32bits Linux 版本支援

在「Google ends 32-bit Linux support for Chrome」這邊看到新聞,引用自「Updates to Google Chrome Linux support」這邊的消息:

To provide the best experience for the most-used Linux versions, we will end support for Google Chrome on 32-bit Linux, Ubuntu Precise (12.04), and Debian 7 (wheezy) in early March, 2016. Chrome will continue to function on these platforms but will no longer receive updates and security fixes.

We intend to continue supporting the 32-bit build configurations on Linux to support building Chromium. If you are using Precise, we’d recommend that you to upgrade to Trusty.

既然還是會支援 32bits 的情況 (透過 Chromium),到時候應該會有 PPA 出來頂著讓大家用?

Ubuntu 16.04 LTS 的 Codename 被命名為 Xenial Xerus

在「The Ubuntu 16.04 LTS Codename Has Been Announced」這邊看到 Ubuntu 16.04 LTS 的 codename 確認了,依照慣例以字母順序輪流使用,所以會是 x 開頭...

Mark Shuttleworth 在 blog 上說明了 Ubuntu 16.04 LTS 想要推動的東西:「X marks the spot」。

還有半年... 話說回來,我前幾個月才換 14.04,這樣 16.04 要什麼時候跳過去 :o