Amazon Linux 2 release notes - Amazon Linux 2

Amazon Linux 2 release notes

The sections in this guide contain the release notes for Amazon Linux 2. The following table provides an overview of the important changes to Amazon Linux 2.

Change Description Date

Updated packages.

Amazon Linux 2 includes updated packages for this release.

November 16, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

October 20, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

September 22, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

August 23, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

August 2, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

June 6, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

April 26, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

April 19, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

April 6, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

March 16, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

March 10, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

March 09, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

February 18, 2022

Kernel updates.

Amazon Linux 2 includes kernel updates, fixed CVEs, features, and backaports for this release.

February 7, 2022

Updated packages.

Amazon Linux 2 includes updated packages for this release.

January 21, 2022

Updated packages.

Amazon Linux 2 includes kernel updates and updated packages for this release.

December 23, 2021

Updated NSS to fix CVE-2021-43527.

Amazon Linux 2 fixed an issue with Network Security Services (NSS) that affected up to and including version 3.73. This issue caused NSS to be vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures. For more information, see Amazon Linux 2.0.20211201.0 release notes.

December 1, 2021

Amazon Linux repositories point to the Amazon S3 dual stack IPv4/IPv6 endpoint.

The system-release was updated to point the Amazon Linux repositories to the Amazon S3 dual stack IPv4/IPv6 endpoint. For more information, see Amazon Linux 2 .0.20211103.0 release notes.

November 3, 2021

Update ca-certificates to version 2021.2.50-72.amzn2.0.1.

Amazon Linux 2 updated the ca-certificates to version 2021.2.50-72.amzn2.0.1. This addresses the expiring IdentTrust DST Root CA X3. This affected some Let’s Encrypt TLS certificates. For more information, see Amazon Linux 2 .0.20211001.1 release notes.

October 1, 2021

Fixed boot problems with grub2 on arm64 and improved compatibility of grub2 generated config file with grubby.

Fixed occasional boot problems with grub2 on ARM64 and improved compatibility of grub2 generated config file with grubby. For more information, see Amazon Linux 2.0.20210813.1 release notes.

August 13, 2021

GRUB updated to 2.06

GRUB has been updated to 2.06 with some launch time improvements. For more information, see Amazon Linux 2.0.20210721.2 release notes.

July 21, 2021

Updated chrony to 4.0.

Updated chrony to 4.0 from 3.5.1. For more information, see Amazon Linux 2.0.20210525.0 release notes.

May 25, 2021

Fixed the ec2-net-utils bug.

The ec2-net-utils bug was fixed with multiple secondary IPs attached to one ENI. For more information, see Amazon Linux 2.0.20210427.0 release notes.

April 27, 2021

Updated irqbalance to 1.7.0.

Updated irqbalance to 1.7.0 from 1.5.0. AL2 AMIs default to HTTPS for repository access. For more information, see Amazon Linux 2.0.20210421.0 release notes.

April 21, 2021

yum will no longer make IMDSv1 calls.

With this update, yum will no longer attempt to make IMDSv1 calls. The amazon-linux-extras utility has been updated to support a simpler format of the Extras catalog. For more information, see Amazon Linux 2.0.20210318.0 release notes.

March 18, 2021

Connect to yum over HTTPS.

With this update, Amazon Linux 2 can now connect to its yum repositories over HTTPS. This can be enabled on boot or at runtime. For more information, see Amazon Linux 2.0.20210126.0 release notes.

January 26, 2021

Renewed GPG key.

This update renewed GPG key and updated system-release to allow for the use of HTTPS repositories with Amazon Linux. For more information, see Amazon Linux 2.0.20201218.0 release notes.

December 18, 2020

Fixed time calculation errors when using dates after 2038.

Addressed the glibc bug that lead to time calculation errors whenever using dates after 2038. Instance launch times were also improved. This was achieved by adding the new dracut-config-ec2 package, which ensure that the initramfs that are built for use inside EC2 don’t include extra files that aren’t already used inside EC2. For more information, see Amazon Linux 2.0.20201111.0 release notes.

November 11, 2020

Updated to Python 2.7.18.

Two kernel CVEs were added and the CVE-2019-20907 bug in python 2.7.18 was addressed. For more information, see Amazon Linux 2.0.20200904.0 release notes.

September 4, 2020

Security updates for gettext, python2-rsa, and python. Updated AWS CLI.

Included are security updates for gettext, python2-rsa, and python. The AWS CLI was updated, and a bug was addressed for the amazon-linux-extras utility. After this fix, the utility no longer recommends deprecated topics. For more information, see Amazon Linux 2.0.20200824.0 release notes.

August 24, 2020

Security updates and bug fixes.

Security updates were added for libxml2 and thunderbird, and a dependency bug was fixed for system-rpm-config. For more information, see Amazon Linux 2.0.20200722.0 release notes.

July 22, 2020

Python updated to 2.7.18.

Python 2.7 was updated to most recent upstream version - 2.7.18. The ca-certificates fix was addressed for the Sectigo intermediate CA expiration issue. For more information, see Amazon Linux 06/17/2020 release notes.

June 17, 2020

Kernel Live Patching is in public preview.

Amazon Linux 2 added the Kernel Live Patching Public Preview, which applies CVE fixes without the need for reboot. For more information, see Amazon Linux 05/29/2020 release notes.

May 29, 2020

Linux kernel 4.19 is available.

Linux kernel 4.19 was made available in Amazon Linux 2 Extras channel. For more information, see Amazon Linux 07/18/2019 release notes.

July 18, 2019

Amazon EC2 Instance Connect is enabled by default.

Changed Amazon EC2 Instance Connect is enabled by default. For more information, see Amazon Linux 06/27/2019 release notes.

June 27, 2019

Amazon Linux 2 AMIs with NVIDIA GPU drivers are available.

Amazon Linux 2 AMIs with NVIDIA GPU drivers are now pre-installed and pre-configured for use on the P and G instance families that are available on AWS Marketplace. For more information, see Amazon Linux 05/23/2019 release notes.

May 23, 2019

A new systemd service is added to launch on boot.

A new systemd service was added to launch on boot. The service submits the host public keys for identity validation to support an upcoming feature for connecting to EC2 instances. For more information, see Amazon Linux 05/14/2019 release notes.

May 14, 2019

Incorrect permissions fixed.

This update fixes incorrect permissions for some system files. For more information, see Amazon Linux 03/13/2019 release notes.

March 13, 2019

A1 support

Amazon Linux 2 is now supported for use on A1 instances. For more information, see Amazon Linux 11/26/2018 release notes.

November 26, 2018

ENA driver update introduces Low Latency Queues.

An ENA driver update was added. This update introduces Low Latency Queues (LLQ) for improved average and tail latencies. It also adds support for receive checksum offload that improves CPU utilization. For more information, see Amazon Linux 11/19/2018 release notes.

November 19, 2018

Updated the OpenSSH daemon configuration file.

The OpenSSH daemon configuration file /etc/ssh/sshd_config has been updated. The AuthorizedKeysCommand value is configured to point to a customized script and to /opt/aws/bin/curl_authorized_keys to support an upcoming feature to read SSH public keysfrom the EC2 instance metadata during the SSH connection process. For more information, see Amazon Linux 10/31/2018 release notes.

October 31, 2019

Support for 32-bit Libraries.

Amazon Linux 2 now supports 32-bit libraries and compatibility packages,. With this support, you can now run 32-bit applications on Amazon Linux 2. For more information, see Amazon Linux 09/25/2018 release notes.

September 25, 2018

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