Pre-release Note

This is the latest Bottlerocket release, and is currently being made available.
You may notice nodes upgrading to this new version, though it may not yet be available globally until the "pre-release" flag is removed.

Release Highlights

• Add support for kubernetes memory-swap-behavior (#4566, bottlerocket-core-kit#541, bottlerocket-settings-sdk#88) - Thanks @teskje!

OS Changes

• Update bottlerocket-core-kit from 9.0.0 to 9.1.0 CHANGELOG (commits) (#4569)
• Update bottlerocket-kernel-kit from 3.1.0 to 3.1.1 CHANGELOG (commits) (#4570)
• Update admin container from 0.11.20 to 0.12.0 CHANGELOG (commits) (#4565)
• Update bootstrap container from 0.2.2 to 0.2.3 CHANGELOG (commits) (#4565)
• Update control container from 0.8.4 to 0.8.5 CHANGELOG (commits) (#4565)

Orchestrator Changes

Kubernetes

• Support kubernetes memory-swap-behavior setting #4566 - Thanks @teskje!

Release Highlights

• Remove aws-k8s-1.26 variants (#4519, #4536)
• Add zramctl to util-linux package (bottlerocket-core-kit#543)
• Enable LTO and arch-specific optimizations (bottlerocket-sdk#276, bottlerocket-core-kit#526)
• Provide Vulkan ICD configuration files for variants using the 6.1 and 6.12 kernels (bottlerocket-kernel-kit#138) - Thanks, @iterion!
• Build GRUB with optimizations (bottlerocket-kernel-kit#163)
• Provide libnvidia-gpucomp.so (bottlerocket-kernel-kit#181) - Thanks, @tzmtl!

OS Changes

• Update bottlerocket-core-kit from 8.2.0 to 9.0.0 CHANGELOG (commits) (#4561)
• Update bottlerocket-kernel-kit from 2.5.1 to 3.1.0 CHANGELOG (commits) (#4561)
• Drop setting generator for hugepages (#4411)

Build Changes

• Update bottlerocket-sdk from 0.61.0 to 0.62.0 (commits) (#4561)

Orchestrator Changes

Kubernetes

• Remove aws-k8s-1.26 variants (#4519, #4536)
• Fix image patterns for ECR dual-stack endpoint (#4518) - Thanks @rxnew, @cartermckinnon!

Release Highlights

• Migrate ECS to use CDI (bottlerocket-core-kit#482)
• Support CDI and legacy NVIDIA Container Runtime modes (#4475)
• Add NVLink Subnet Manager to support NVIDIA B200 (bottlerocket-core-kit#499, bottlerocket-kernel-kit#142)

OS Changes

• Update bottlerocket-core-kit from 8.1.1 to 8.2.0 CHANGELOG (commits) (#4532)
• Update bottlerocket-kernel-kit from 2.3.3 to 2.5.1 CHANGELOG (commits) (#4537)
• Update bootstrap container from 0.2.1 to 0.2.2 CHANGELOG (commits) (#4535)
• Update control container from 0.8.3 to 0.8.4 CHANGELOG (commits) (#4535)

OS Changes

• Update bottlerocket-core-kit from 8.1.0 to 8.1.1 CHANGELOG (commits) (#4522)

Build Changes

Twoliter

• Update twoliter from 0.10.0 to 0.10.1 CHANGELOG (commits) (#4523)

Release Highlights

• Provide containerd-2.0 and containerd-1.7 (bottlerocket-core-kit#485)
• Add new k8s 1.33 variants (#4507, #4513):
  • Add aws-k8s-1.33, aws-k8s-1.33-nvidia, aws-k8s-1.33-fips, vmware-k8s-1.33, and vmware-k8s-1.33-fipsvariants
  • FIPS variants use 6.1 kernel, all others use 6.12 kernel
  • Use EROFS for root filesystem on Kernel 6.12 variants
  • Use containerd-2.0 on all k8s 1.33 variants
  • Use EBS volume gp3 for all AWS k8s 1.33 variant AMIs
  • Require IMDSv2 by default for new k8s 1.33 variant AMIs. For applications not yet compatible
    with IMDSv2, this can be disabled at the instance or account level. See
    the AWS documentation
    for more details.

OS Changes

• Update bottlerocket-core-kit from 8.0.0 to 8.1.0 CHANGELOG (commits) (#4510)
• Update bottlerocket-kernel-kit from 2.3.0 to 2.3.3 CHANGELOG (commits) (#4508)
• Update admin container from 0.11.19 to 0.11.20 CHANGELOG (commits) (#4509)
• Update bootstrap container from 0.2.0 to 0.2.1 CHANGELOG (commits) (#4509)
• Update control container from 0.8.2 to 0.8.3 CHANGELOG (commits) (#4509)

Orchestrator Changes

Kubernetes

• Add aws-k8s-1.33, aws-k8s-1.33-nvidia, aws-k8s-1.33-fips, vmware-k8s-1.33, and vmware-k8s-1.33-fipsvariants (#4507)
• Add new Kubernetes settings (#4506)
  • containerLogMaxWorkers
  • containerLogMonitorInterval
  • singleProcessOOMKill

Build Changes

• Use GP3 volumes and require IMDSv2 by default for AWS k8s 1.33 variant AMIs. (#4513)

Twoliter

• Update twoliter from 0.9.0 to 0.10.0 CHANGELOG (commits) (#4512)

Release Highlights

• Move aws-ecs-2-nvidia, aws-k8s-1.28-nvidia, aws-k8s-1.29-nvidia, aws-k8s-1.30-nvidia, aws-k8s-1.31-nvidia, and aws-k8s-1.32-nvidia variants from NVIDIA r535 driver to r570 driver (#4499, #4441)
• Remove aws-k8s-1.25 variants (#4497, #4496)

OS Changes

• Update bottlerocket-core-kit from 7.0.1 to 8.0.0 CHANGELOG (commits) (#4501)
• Update bottlerocket-kernel-kit from 2.2.2 to 2.3.0 CHANGELOG (commits) (#4498)

Build Changes

• Pass missing vars to sbkeys script (#4493)

Release Highlights

• Add brush to enable aws-signing-helper and IAM Roles Anywhere usage (bottlerocket-core-kit#451)
• Clear configuration-files and services on upgrades (bottlerocket-core-kit#456)
• Remove shimpei and oci-add-hooks (bottlerocket-core-kit#458)
• Use the NVIDIA Container Runtime to configure GPUs for containers (bottlerocket-core-kit#458)
• Update runc from 1.1.15 to 1.2.6 (bottlerocket-core-kit#463)
• Allow lookups of .local domains using unicast DNS (bottlerocket-core-kit#464) - Thanks @tzneal!
• Let kubelet start when swap is on (bottlerocket-core-kit#473)

OS Changes

• Remove unnecessary settings for OCI Hooks API (#4474)
• Update migrations to delete configuration-files and services on downgrade (#4478)
• Update bottlerocket-core-kit from 6.2.0 to 7.0.1 CHANGELOG (commits) (#4471, #4485, #4490)
• Update bottlerocket-kernel-kit from 2.1.0 to 2.2.2 CHANGELOG (commits) (#4485, #4489)
• Update admin container from 0.11.18 to 0.11.19 CHANGELOG (commits) (#4476)
• Update bootstrap container from 0.1.3 to 0.2.0 CHANGELOG (commits) (#4476)
• Update control container from 0.8.1 to 0.8.2 CHANGELOG (commits) (#4476)

Build Changes

• Update Rust dependencies (#4468, #4469)
• Update secure boot keys to include aws-partition & ca-signing-algo arguments (#4450)
• Update bottlerocket-sdk from 0.60.0 to 0.61.0 (commits) (#4485)

Twoliter

• Update twoliter from 0.8.1 to 0.9.0 CHANGELOG (commits) (#4484)

Release Highlights

• Switch to igzip (x86_64) or pigz with zlib-ng (aarch64) to decompress container images (bottlerocket-core-kit#443)
• Add support for more AWS regions in schnauzer and host-ctr (bottlerocket-core-kit#454)

OS Changes

• Update bottlerocket-core-kit from 6.1.0 to 6.2.0 CHANGELOG (commits) (#4460, #4452)
• Update bottlerocket-kernel-kit from 1.3.0 to 2.1.0 CHANGELOG (commits) (#4461)

Orchestrator Changes

Kubernetes

• Authenticate with ECR public to avoid rate limits (#4419) - Thanks @MarkIannucci!
• Support ECR credential provider in more ISO partitions (#4459)

Build Changes

• Remove redundant metadata migration helpers (#4459)
• Archive migrations prior to v1.34.0 (#4459)
• Remove schnauzer and apiclient dependencies from bottlerocket repo (#4459)

Documentation Changes

• Fix links to ./packages to point to the bottlerocket-core-kit/packages (#4446)

Release Highlights

• Move the aws-ecs-1 kernel from 5.10 to 5.15 (#4434)
• Persist sysctl setting changes to /etc/sysctl.d (bottlerocket-core-kit#333) - Thanks @aetimmes
• Updated cis report to account for formatting change in iptables (bottlerocket-core-kit#390)
• Include SHA-256 and SHA-512 CPU routines in the ARM kernel image (bottlerocket-kernel-kit#67)

OS Changes

• Update admin container from 0.11.16 to 0.11.18 CHANGELOG (commits) (#4431, #4443)
• Update bootstrap container from 0.1.1 to 0.1.3 CHANGELOG (commits) (#4432, #4443)
• Update control container from 0.7.20 to 0.8.1 CHANGELOG (commits) (#4431, #4443)

Build Changes

• Update bottlerocket-core-kit from 6.0.2 to 6.1.0 CHANGELOG (commits) (#4439)
• Update bottlerocket-kernel-kit from 1.2.0 to 1.3.0 CHANGELOG (commits) (#4439)
• Update bottlerocket-sdk from 0.50.1 to 0.60.0 (commits) (#4439)
• Bump ring from 0.17.8 to 0.17.13 (#4430)

Twoliter

• Update twoliter from 0.7.3 to 0.8.1 CHANGELOG (commits) (#4433, #4438)

OS Changes

• Add support for NVIDIA Multi-Instance GPU (MIG) (#4418)

Build Changes

• Update bottlerocket-core-kit from 6.0.1 to 6.0.2 CHANGELOG (#4416)
• Update bottlerocket-kernel-kit from 1.1.2 to 1.2.0 CHANGELOG (#4416)

Twoliter

• Update Twoliter to 0.7.3 (#4416)