| aliyun_2_1903_x64_20G_alibase_20200904.vhd |
2020-09-04 |
- Images are updated to the latest software version to be compatible with CentOS 7.8.
Common vulnerabilities and exposures (CVEs) are fixed.
- /etc/redhat-release is changed from Aliyun Linux release 7.2 LTS (Hunting Beagle) to Alibaba Cloud Linux
(Aliyun Linux) release 2.1903 LTS (Hunting Beagle).
- The image type information in /etc/image-id is optimized.
- The tuned service is disabled by default.
- Kernel updates:
- The kernel is updated to the kernel-4.19.91-21.al7 version.
- Kernel bugs and security vulnerabilities are fixed.
- The io_uring bug is fixed and new features are added.
- Transparent Huge Pages (THP) fork optimization is added to accelerate the creation
of memory intensive processes.
- Secure operations on Apache Pass (AEP) devices are supported.
- The TCP-RT feature developed by Alibaba Cloud is supported.
- The virtio-mem feature is supported.
- The PCIe Gen4 feature, RAS feature, and power management of Intel ® IceLake processors are enhanced.
- The Intel ® Speed Select Technology is supported.
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| aliyun_2_1903_x64_20G_qboot_alibase_20200904.vhd |
2020-09-04 |
- Images are updated to the latest software version.
- This image is derived from the aliyun_2_1903_x64_20G_alibase_20200904.vhd image.
- Applicable regions: China (Hangzhou), China (Shenzhen), China (Zhangjiakou), and China
(Hong Kong).
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| aliyun_2_1903_x64_20G_alibase_20200529.vhd |
2020-05-29 |
- Images are updated to the latest software version to be compatible with CentOS 7.8.
CVEs are fixed.
- /etc/image-id is added.
- The tuned service is disabled by default.
- Kernel updates:
- The kernel is updated to the kernel-4.19.91-19.1.al7 version.
- The kernel interface support provided by the Alibaba Cloud kernel on the statistics
of scheduling and memory QoS metrics is open sourced to perform fine-grained monitoring
of Service Level Indicators (SLIs) related to scheduling and memory.
- The kernel interface support provided by the Alibaba Cloud kernel on priority control
when a memcg is out of memory (OOM) is open sourced to improve protection on important
processes during system OOM.
- AMD QoS is supported.
- The virtio pmem driver is supported.
- The free page reporting feature is supported to enhance the awareness of hypervisors
about idle memory of a guest OS and efficiently manage and utilize physical memory
resources.
- Memory compaction is optimized to alleviate memory fragmentation and improve the utilization
of system memory.
- Kernel bugs and security vulnerabilities are fixed.
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| aliyun_2_1903_x64_20G_alibase_20200324.vhd |
2020-03-24 |
- Images are updated to the latest software version to be compatible with CentOS 7.8.
CVEs are fixed.
- The latest fixes for CVEs can be obtained by using YUM.
- The LTS version of Alibaba Cloud Linux 2 is released and /etc/alinux-release is updated to Aliyun Linux release 2.1903 LTS (Hunting Beagle).
- The tuned service is enabled by default.
- Kernel updates:
- The kernel is updated to the kernel-4.19.91-18.al7 version.
- NVMe devices are supported.
- The THP feature is enabled by default to improve application performance.
- io_uring is added.
- Intel_idle and guest halt polling are enabled to improve the guest CPU performance.
- ftrace syscalls is enabled to enhance the performance of the bpftrace tool.
- Multiple Alibaba Cloud optimizations and bug fixes to the kernel including subsystems
such as schedulers, memory, file systems, and block layers are open sourced.
- Kernel security vulnerabilities are fixed.
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| aliyun_2_1903_x64_20G_alibase_20200221.vhd |
2020-02-21 |
- Images are updated to the latest software version to be compatible with CentOS 7.8.
CVEs are fixed.
- IPv6 is enabled by default.
- Kernel updates:
- The kernel is updated to the kernel-4.19.81-17.1.al7 version.
- Intel Cooper Lake processors and Ice Lake processors are supported.
- The support for the AMD and ARM 64-bit CPU architectures is enhanced.
- Persistent memory is supported.
- The blk-iocost feature is provided. It is based on the cost model and the weight-based
throttling function of blkio cgroup controllers. For more information, see Configure the weight-based throttling feature of blk-iocost.
- The Pressure Stall Information (PSI) feature that is implemented based on cgroup v1
interfaces is supported. For more information, see Enable the PSI feature for cgroup v1.
- Multiple Alibaba Cloud optimizations and bug fixes to the kernel including subsystems
such as schedulers, memory, file systems, and block layers are open sourced.
- Kernel security vulnerabilities are fixed.
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| aliyun_2_1903_x64_20G_alibase_20200114.qboot.vhd |
2020-01-14 |
- Images are updated to the latest software version.
- Kernel updates:
- The kernel is updated to the 4.19.81-17.al7.x86_64 version.
- Quick boot with qboot is supported.
- Applicable regions: China (Beijing), : China (Beijing)), and China (Hong Kong).
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| aliyun_2_1903_64_20G_alibase_20190829.vhd |
2019-08-29 |
- Images are updated to the latest software version.
- Kernel updates:
- The kernel is updated to the kernel-4.19.57-15.1.al7.x86_64 version.
- The Spectre-V1 SWAPGS vulnerability is fixed.
- Issues with DM bio splitting code are fixed.
- The default TCP congestion control algorithm is set to CUBIC.
- The network is configured to 10-eth0.network.
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| aliyun_2_1903_64_20G_alibase_20190619.vhd |
2019-06-19 |
- Images are updated to the latest software version.
- Kernel updates:
- The kernel is updated to the kernel-4.19.43-13.2.al7.x86_64 version.
- The cgroup writeback feature implemented based on the cgroup v1 interface is supported.
- Policy-based routing is supported.
- The INET_DIAG kernel configuration item is enabled to support the ss command from the iproute2 suite.
- The configurable net.ipv4.tcp_tw_timeout kernel interface is supported.
- The following network-related CVEs are fixed:
- CVE-2019-11477
- CVE-2019-11478
- CVE-2019-11479
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| aliyun-2.1903-x64-20G-alibase-20190507.vhd |
2019-05-07 |
- Images are updated to the latest software version.
- The time synchronization delay that was presented on instance startup is fixed.
- The kernel is updated to the kernel-4.19.34-11.al7.x86_64 version and other issues are fixed.
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| aliyun-2.1903-x64-20G-alibase-20190327.vhd |
2019-03-27 |
- Alibaba Cloud Linux 2 is released.
- The kernel-4.19.24-9.al7.x86_64 kernel version is used in Alibaba Cloud Linux 2.
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