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Version 1.16 change log (unsupported as of 31 January 2021)

Version 1.16 change log (unsupported as of 31 January 2021)

Version 1.16 is unsupported. You can review the following archive of 1.16 change logs.

Change log for master fix pack 1.16.15_1557, released 19 January 2021

The following table shows the changes that are in the master fix pack patch update 1.16.15_1557. Master patch updates are applied automatically.

Changes since version 1.16.15_1556
Component Previous Current Description
Cluster health image v1.1.13 v1.1.16 Updated image to implement additional IBM security controls.
Gateway-enabled cluster controller 1184 1195 Updated image for CVE-2020-1971.
GPU device plug-in and installer adcae42 4d3b934f Updated image for CVE-2020-27350, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2020-1971, CVE-2020-8231, CVE-2020-8284, CVE-2020-8285, and CVE-2020-8286.
IBM Calico extension 556 567 Updated image for CVE-2020-1971 and CVE-2020-24659.
IBM Cloud File Storage for Classic plug-in and monitor 384 385 Updated image for CVE-2020-1971 and CVE-2020-24659.
Key Management Service provider v1.0.5 v1.0.7 Fixed bug to ignore conflict errors during KMS secret re-encryption. Updated to use Go version 1.15.5. Updated image for CVE-2020-1971.
Kubernetes N/A N/A Updated to implement additional IBM security controls.
Load balancer and load balancer monitor for IBM Cloud Provider 1004 1078 Updated image for CVE-2020-1971.

Change log for worker node fix pack 1.16.15_1557, released 18 January 2021

The following table shows the changes that are in the worker node fix pack 1.16.15_1557. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1555
Component Previous Current Description
Ubuntu 16.04 packages 4.4.0-197-generic 4.4.0-200-generic Updated worker node image with kernel and package updates for CVE-2018-20482, CVE-2019-9923, CVE-2020-28374, CVE-2020-29361 external}, and CVE-2020-29362 external}.
Ubuntu 18.04 packages 4.15.0-128-generic 4.15.0-132-generic Updated worker node image with kernel and package updates for CVE-2018-20482, CVE-2019-9923, CVE-2020-28374, CVE-2020-29361, CVE-2020-29362, CVE-2020-29363, CVE-2021-1052, CVE-2021-1053, and CVE-2019-19770.

Change log for master fix pack 1.16.15_1556, released 6 January 2021

The following table shows the changes that are in the master fix pack patch update 1.16.15_1556. Master patch updates are applied automatically.

Changes since version 1.16.15_1554
Component Previous Current Description
IBM Calico extension 544 556 Updated image to include the ip command.
IBM Cloud File Storage for Classic plug-in N/A N/A Updated to run with a privileged security context.
Operator Lifecycle Manager 0.14.1-IKS-1 0.14.1-IKS-2 Updated image for CVE-2020-1971 and CVE-2020-28928.

Change log for worker node fix pack 1.16.15_1555, released 21 December 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1555. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1554
Component Previous Current Description
Ubuntu 16.04 packages N/A N/A Updated worker node image with package updates for: CVE-2020-1971, CVE-2020-27350, CVE-2020-27351, CVE-2020-8284, CVE-2020-8285, and CVE-2020-8286.
Ubuntu 18.04 packages 4.15.0-126-generic 4.15.0-128-generic Updated worker node image with kernel and package updates for: CVE-2020-1971, CVE-2020-27350, CVE-2020-27351, CVE-2020-8284, CVE-2020-8285, and CVE-2020-8286.
Ephemeral storage reservations N/A N/A Reserve local ephemeral storage to prevent workload evictions.
HAProxy db4e6d 9b2dca Image update for CVE-2020-1971 and CVE-2020-24659.

Change log for master fix pack 1.16.15_1554, released 14 December 2020

The following table shows the changes that are in the master fix pack patch update 1.16.15_1554. Master patch updates are applied automatically.

Changes since version 1.16.15_1552
Component Previous Current Description
Gateway-enabled cluster controller 1105 1184 Updated to use Go version 1.15.5. Updated image to implement additional IBM security controls.
GPU device plug-in and installer c7a8cf7 adcae42 Updated the GPU drivers to version 450.80.02. Updated image for CVE-2020-28367, CVE-2020-28366, and CVE-2020-28362. Updated image to implement additional IBM security controls.
IBM Calico extension 378 544 Updated to use the universal base image (UBI) and to use Go version 1.15.5. Updated image to implement additional IBM security controls.
IBM Cloud File Storage for Classic monitor 379 384 Updated to use Go version 1.15.5 and to run as a non-root user. Updated image to implement additional IBM security controls.
IBM Cloud File Storage for Classic plug-in 379 384 Updated to use Go version 1.15.5 and to run with a least privileged security context. Updated image to implement additional IBM security controls.
IBM Cloud Provider v1.16.15-382 v1.16.15-394 Updated image to implement additional IBM security controls.
Key management service (KMS) provider v1.0.4 v1.0.5 Updated image to implement additional IBM security controls.
Load balancer and load balancer monitor for IBM Cloud Provider 208 1004 Updated Alpine base image to version 3.12 and to use Go version 1.15.5. Updated image for CVE-2020-8037 and CVE-2020-28928. Updated image to implement additional IBM security controls.
OpenVPN client 2.4.6-r3-IKS-116 2.4.6-r3-IKS-301 Updated image to implement additional IBM security controls.
OpenVPN server 2.4.6-r3-IKS-131 2.4.6-r3-IKS-301 Updated image to implement additional IBM security controls.

Change log for worker node fix pack 1.16.15_1554, released 11 December 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1554. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1553
Component Previous Current Description
Ubuntu 18.04 bare metal kernel 4.15.0-126-generic 4.15.0-123-generic Bare metal worker nodes: Reverted the kernel version for bare metal worker nodes while Canonical addresses issues with the previous version that prevented worker nodes from being reloaded or updated.

Change log for worker node fix pack 1.16.15_1553, released 7 December 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1553. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1552
Component Previous Current Description
Containerd v1.3.4 1.3.9 See the containerd release notes. The update resolves CVE-2020–15257 (see the IBM security bulletin).
HAProxy 1.8.26-384f42 db4e6d Added provenance labels for source tracking.
Ubuntu 18.04 packages 4.15.0-123-generic 4.15.0-126-generic Updated worker node image with kernel and package updates for CVE-2020-14351 and CVE-2020-4788.
Ubuntu 16.04 packages 4.4.0-194-generic 4.4.0-197-generic Updated worker node image with kernel and package updates for CVE-2020-0427, CVE-2020-12352, CVE-2020-14351, CVE-2020-25645, and CVE-2020-4788.

Change log for worker node fix pack 1.16.15_1552, released 23 November 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1552. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1551
Component Previous Current Description
Ubuntu 18.04 packages 4.15.0-122-generic 4.15.0-123-generic Updated worker node image with kernel and package updates for CVE-2020-25692, CVE-2020-25709, CVE-2020-25710, CVE-2020-28196, and CVE-2020-8694.
Ubuntu 16.04 packages 4.4.0-193-generic 4.4.0-194-generic Updated worker node image with kernel and package updates for CVE-2020-25692, CVE-2020-25709, CVE-2020-25710, CVE-2020-28196, and CVE-2020-8694.

Change log for master fix pack 1.16.15_1552, released 16 November 2020

The following table shows the changes that are in the master fix pack patch update 1.16.15_1552. Master patch updates are applied automatically.

Changes since version 1.16.15_1550
Component Previous Current Description
Cluster health image v1.1.12 v1.1.13 Updated image for DLA-2424-1.
GPU device plug-in and installer edd26a4 c7a8cf7 Updated image for CVE-2019-20386, CVE-2019-13050, CVE-2020-8177, CVE-2019-14889, CVE-2020-1730, CVE-2020-10029, CVE-2020-1751, CVE-2020-1752, CVE-2019-16168, CVE-2019-20218, CVE-2019-5018, CVE-2020-13630, CVE-2020-13631, CVE-2020-13632, CVE-2020-6405, CVE-2020-9327, CVE-2019-1551, CVE-2019-19221, CVE-2019-16935, CVE-2019-20907, CVE-2020-14422, CVE-2020-8492, CVE-2019-19906, CVE-2019-20454, CVE-2019-19956, CVE-2019-20388, CVE-2020-7595, CVE-2019-13627, CVE-2018-20843, CVE-2019-15903, and CVE-2019-20387.
IBM Cloud File Storage for Classic plug-in and monitor 378 379 Updated to use the universal base image (UBI) and to use Go version 1.15.2.
IBM Cloud Provider v1.16.15-331 v1.16.15-382 Updated image for DLA-2424-1.
Key Management Service provider v1.0.3 v1.0.4 Updated image for DLA-2424-1.

Change log for worker node fix pack 1.16.15_1551, released 9 November 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1551. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1550
Component Previous Current Description
Ubuntu 18.04 packages N/A N/A Updated worker node image with kernel and package updates for CVE-2018-14036, CVE-2020-10543, CVE-2020-10878, CVE-2020-12723, CVE-2020-16126, CVE-2020-25659, and CVE-2017-18269.
Ubuntu 16.04 packages N/A N/A Updated worker node image with package updates for CVE-2018-14036, CVE-2020-10543, CVE-2020-10878, CVE-2020-12723, CVE-2020-16126, and CVE-2020-25659.

Change log for worker node fix pack 1.16.15_1550, released 26 October 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1550. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1549
Component Previous Current Description
Ubuntu 18.04 packages 4.15.0-118-generic 4.15.0-122-generic Updated worker node images with kernel and package updates for CVE-2018-10322, CVE-2019-20807, CVE-2019-20916, CVE-2020-12351, CVE-2020-12352, CVE-2020-15999, CVE-2020-16119, CVE-2020-16120, CVE-2020-24490, and CVE-2020-26116.
Ubuntu 16.04 packages 4.4.0-190-generic 4.4.0-193-generic Updated worker node images with kernel and package updates for CVE-2017-17087, CVE-2018-10322, CVE-2019-20807, CVE-2020-15999, CVE-2020-16119, and CVE-2020-26116.

Change log for master fix pack 1.16.15_1550, released 26 October 2020

The following table shows the changes that are in the master fix pack patch update 1.16.15_1550. Master patch updates are applied automatically.

Changes since version 1.16.15_1547
Component Previous Current Description
Calico configuration N/A N/A Updated the calico-node daemon set in the kube-system namespace to set the spec.updateStrategy.rollingUpdate.maxUnavailable parameter to 10% for clusters with more than 50 worker nodes.
Cluster health image v1.1.11 v1.1.12 Updated to use Go version 1.15.2.
Gateway-enabled cluster controller 1082 1105 Updated to use Go version 1.15.2.
Kubernetes NodeLocal DNS cache 1.15.13 1.15.14 See the Kubernetes NodeLocal DNS cache release notes.

Change log for worker node fix pack 1.16.15_1549, released 12 October 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1549. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.15_1548
Component Previous Current Description
Ubuntu 18.04 packages N/A N/A Updated worker node image with package updates for CVE-2019-8936, CVE-2020-26137, and CVE-2020-14365.
Ubuntu 16.04 packages N/A N/A Updated worker node image with package updates for CVE-2020-14365 and CVE-2020-26137.

Change log for worker node fix pack 1.16.15_1548, released 28 September 2020

The following table shows the changes that are in the worker node fix pack 1.16.15_1548. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.14_1546
Component Previous Current Description
Kubernetes v1.16.14 v1.16.15 See the Kubernetes release notes.
Ubuntu 18.04 packages 4.15.0-117-generic 4.15.0-118-generic Updated worker node image with kernel and package updates for CVE-2018-1000500, CVE-2018-7738, CVE-2019-14855, CVE-2019-1547, CVE-2019-1551, CVE-2019-1563, CVE-2020-10753, CVE-2020-12059, CVE-2020-12888, CVE-2020-1760, and CVE-2020-1968.
Ubuntu 16.04 packages 4.4.0-189-generic 4.4.0-190-generic Updated worker node image with kernel and package updates for CVE-2019-20811, CVE-2019-9453, CVE-2020-0067, and CVE-2020-1968.

Change log for master fix pack 1.16.15_1547, released 21 September 2020

The following table shows the changes that are in the master fix pack patch update 1.16.15_1547. Master patch updates are applied automatically.

Changes since version 1.16.14_1546
Component Previous Current Description
Cluster health image v1.1.9 v1.1.11 Updated Go version for CVE-2020-16845 and CVE-2020-24553.
etcd v3.3.22 v3.3.25 See the etcd release notes.
GPU device plug-in and installer bacb9e1 edd26a4 Updated Go version for CVE-2020-16845 and CVE-2020-24553. Updated the GPU drivers to version 450.51.06.
IBM Cloud File Storage for Classic plug-in and monitor 377 378 Updated Go version for CVE-2020-16845.
IBM Cloud Provider v1.16.14-311 v1.16.15-331 Updated to support the Kubernetes 1.16.15 release.
Key Management Service provider v1.0.1 v1.0.3 Updated Go version for CVE-2020-16845 and CVE-2020-24553.
Kubernetes v1.16.14 v1.16.15 See the Kubernetes release notes.
Kubernetes Dashboard v2.0.3 v2.0.4 See the Kubernetes Dashboard release notes.

Change log for worker node fix pack 1.16.14_1546, released 14 September 2020

The following table shows the changes that are in the worker node fix pack 1.16.14_1546. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.14_1545
Component Previous Current Description
HAProxy 1.8.25-384f42 1.8.26-561f1a See the HAProxy change log.
Ubuntu 18.04 packages 4.15.0-112-generic 4.15.0-117-generic Updated worker node image with kernel and package updates for CVE-2020-14344, CVE-2020-14363, and CVE-2020-14386.
Ubuntu 16.04 packages 4.4.0-187-generic 4.4.0-189-generic Updated worker node image with kernel and package updates for CVE-2020-14344 and CVE-2020-14363.

Change log for worker node fix pack 1.16.14_1545, released 31 August 2020

The following table shows the changes that are in the worker node fix pack 1.16.14_1545. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.14_1544
Component Previous Current Description
Ubuntu 18.04 packages N/A N/A Updated worker node image with package updates for CVE-2020-12403, CVE-2020-8231, CVE-2020-8622, CVE-2020-8623, and CVE-2020-8624.
Ubuntu 16.04 packages 4.4.0-186-generic 4.4.0-187-generic Updated worker node image with kernel and package updates for CVE-2020-8231, CVE-2020-8622, and CVE-2020-8623.

Change log for master fix pack 1.16.14_1544, released 18 August 2020

The following table shows the changes that are in the master fix pack patch update 1.16.14_1544. Master patch updates are applied automatically.

Changes since version 1.16.13_1542
Component Previous Current Description
Cluster health image v1.1.8 v1.1.9 Updated to use Go version 1.13.13.
GPU device plug-in and installer 8c24345 bacb9e1 Updated image for CVE-2020-14039 and CVE-2020-15586.
IBM Cloud Provider v1.16.13-289 v1.16.14-311 Updated to support the Kubernetes 1.16.14 release and to use Go version 1.13.15.
IBM Cloud File Storage for Classic plug-in and monitor 376 377 Fixed a bug that prevents persistent volume claim (PVC) creation failures from being retried.
Key Management Service provider v1.0.0 v1.0.1 Updated image for CVE-2020-15586.
Kubernetes v1.16.13 v1.16.14 See the Kubernetes release notes.
Kubernetes add-on resizer 1.8.5 1.8.11 See the Kubernetes add-on resizer release notes.
Kubernetes configuration N/A N/A The Kubernetes API server audit policy configuration is updated to include auditing of all API groups except apiregistration.k8s.io and coordination.k8s.io.
Kubernetes Metrics Server v0.3.6 v0.3.7 See the Kubernetes Metrics Server release notes.
Kubernetes NodeLocal DNS cache configuration N/A N/A Increased the pod termination grace period.

Change log for worker node fix pack 1.16.14_1544, released 17 August 2020

The following table shows the changes that are in the worker node fix pack 1.16.14_1544. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.13_1542
Component Previous Current Description
Kubernetes v1.16.13 v1.16.14 See the Kubernetes change logs.
Ubuntu 18.04 packages N/A N/A Updated worker node image with package updates for CVE-2020-11936, CVE-2020-12400, CVE-2020-12401, CVE-2020-15701, CVE-2020-15702, CVE-2020-15709, and CVE-2020-6829.
Ubuntu 16.04 packages N/A N/A Updated worker node image with package updates for CVE-2020-11936, CVE-2020-15701, CVE-2020-15702, and CVE-2020-15709.

Change log for worker node fix pack 1.16.13_1542, released 3 August 2020

The following table shows the changes that are in the worker node fix pack 1.16.13_1542. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.13_1539
Component Previous Current Description
Ubuntu 18.04 packages 4.15.0-111-generic 4.15.0-112-generic Updated worker node images with kernel and package updates for CVE-2019-17514, CVE-2019-20907, CVE-2019-9674, CVE-2020-10713, CVE-2020-10757, CVE-2020-11935, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-14422, CVE-2020-15705, CVE-2020-15706, and CVE-2020-15707.
Ubuntu 16.04 packages 4.4.0-185-generic 4.4.0-186-generic Updated worker node images with package updates for CVE-2019-12380, CVE-2019-17514, CVE-2019-20907, CVE-2019-9674, CVE-2020-10713, CVE-2020-11935, CVE-2020-14308, CVE-2020-14309, CVE-2020-14310, CVE-2020-14311, CVE-2020-14422, CVE-2020-15705, CVE-2020-15706, and CVE-2020-15707.

Change log for master fix pack 1.16.13_1541, released 24 July 2020

The following table shows the changes that are in the master fix pack patch update 1.16.13_1541. Master patch updates are applied automatically.

Changes since version 1.16.13_1540
Component Previous Current Description
Cluster master operations N/A N/A Fixed a problem that might cause pods to fail authentication to the Kubernetes API server after a cluster master operation.
IBM Cloud File Storage for Classic plug-in and monitor 375 376 Updated to use Go version 1.13.8.

Change log for master fix pack 1.16.13_1540, released 20 July 2020

The following table shows the changes that are in the master fix pack patch update 1.16.13_1540. Master patch updates are applied automatically.

Changes since version 1.16.11_1537
Component Previous Current Description
GPU device plug-in and installer 31d4bb6 8c24345 Updated image for CVE-2017-12133, CVE-2017-18269, CVE-2018-11236, CVE-2018-11237, CVE-2018-19591, CVE-2018-6485, CVE-2019-19126, CVE-2019-9169, CVE-2020-10029, CVE-2020-1751, and CVE-2020-1752.
IBM Calico extension 353 378 Updated to handle any ens network interface.
IBM Cloud File Storage for Classic plug-in and monitor configuration N/A N/A Added a pod memory limit.
IBM Cloud Provider v1.16.11-267 v1.16.13-289 Updated to support the Kubernetes 1.16.13 release.
Kubernetes v1.16.11 v1.16.13 See the Kubernetes release notes. The update resolves CVE-2020-8559 (see the IBM security bulletin).
Kubernetes configuration N/A N/A The Kubernetes API server audit policy configuration is updated to include auditing the scheduling.k8s.io API group and the tokenreviews resource.
Kubernetes Dashboard v2.0.1 v2.0.3 See the Kubernetes Dashboard release notes.
Operator Lifecycle Manager 0.14.1 0.14.1-IKS-1 Updated image for CVE-2020-1967.

Change log for worker node fix pack 1.16.13_1539, released 20 July 2020

The following table shows the changes that are in the worker node fix pack 1.16.13_1539. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.11_1537
Component Previous Current Description
HAProxy 2.0.15-afe432 1.8.25-384f42 See the HAProxy change log. Fixes a connection leak that happens when HAProxy is under high load.
Kubernetes v1.16.11 v1.16.13 See the Kubernetes change logs. The update resolves CVE-2020-8557 (see the IBM security bulletin).
Ubuntu 18.04 packages 4.15.0-109-generic 4.15.0-111-generic Updated worker node images with kernel and package updates for CVE-2018-11236, CVE-2018-11237, CVE-2018-19591, CVE-2019-19126, CVE-2019-9169, CVE-2020-10029, CVE-2020-12402, CVE-2020-1751, and CVE-2020-1752.
Ubuntu 16.04 packages 4.4.0-184-generic 4.4.0-185-generic Updated worker node images with package updates for CVE-2017-12133, CVE-2017-18269, CVE-2018-11236, CVE-2018-11237, CVE-2018-6485, CVE-2019-19126, CVE-2019-9169, CVE-2020-0543, CVE-2020-10029, CVE-2020-10711, CVE-2020-13143, CVE-2020-1751, and CVE-2020-1752.

Change log for worker node fix pack 1.16.11_1537, released 6 July 2020

The following table shows the changes that are in the worker node fix pack 1.16.11_1537. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.11_1536
Component Previous Current Description
HAProxy 1.8.25-30b675 2.0.15-afe432 See the HAProxy change log.
Ubuntu 18.04 packages 4.15.0-106-generic 4.15.0-109-generic Updated worker node images with kernel and package updates for CVE-2019-12380, CVE-2019-16089, CVE-2019-19036, CVE-2019-19039, CVE-2019-19318, CVE-2019-19642, CVE-2019-19813, CVE-2019-3689, CVE-2020-0543, CVE-2020-10711, CVE-2020-13143, CVE-2020-8177, CVE-2019-19377, and CVE-2019-19816.
Ubuntu 16.04 packages N/A N/A Updated worker node images with package updates for CVE-2019-3689 and CVE-2020-8177.
Worker node drain automation N/A N/A Fixes a race condition that can cause worker node drain automation to fail.

Change log for 1.16.11_1536, released 22 June 2020

The following table shows the changes that are in the master and worker node update 1.16.11_1536. Master patch updates are applied automatically. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node. For more information, see Update types.

Changes since version 1.16.10_1534
Component Location Previous Current Description
Calico Master v3.9.5 v3.9.6 See the Calico release notes. The master update resolves CVE-2020-13597 (see the IBM security bulletin).
Cluster health image Master v1.1.5 v1.1.8 Additional status information is included when an add-on health state is critical. Improved performance when handling cluster status updates.
Cluster master operations Master N/A N/A Cluster master operations such as refresh or update are now canceled if a broken Kubernetes admission webhook is detected.
etcd Master v3.3.20 v3.3.22 See the etcd release notes.
GPU device plug-in and installer Master 8b02302 31d4bb6 Updated image for CVE-2020-3810.
IBM Cloud File Storage for Classic plug-in Master 373 375 Fixed a bug that might cause error handling to create additional persistent volumes.
IBM Cloud Provider Master v1.16.10-243 v1.16.11-267 Updated to support the Kubernetes 1.16.11 release. Updated the version 2.0 private network load balancers (NLBs) to manage Calico global network policies. Updated calicoctl version to 3.9.6.
Kubernetes Both v1.16.10 v1.16.11 See the Kubernetes release notes. The master update resolves CVE-2020-8558 (see the IBM security bulletin).
Kubernetes configuration Master N/A N/A The Kubernetes API server audit policy configuration is updated to include auditing the apiextensions.k8s.io API group and the persistentvolumeclaims and persistentvolumes resources. Additionally, the http2-max-streams-per-connection option is set to 1000 to mitigate network disruption impacts on the kubelet connection to the API server.
Kubernetes Dashboard Master v2.0.0 v2.0.1 See the Kubernetes Dashboard release notes.
Ubuntu 18.04 packages Worker 4.15.0-101-generic 4.15.0-106-generic Updated worker node images with kernel and package updates for CVE-2018-8740, CVE-2019-17023, CVE-2020-0543, CVE-2020-12049, CVE-2020-12399, CVE-2020-13434, CVE-2020-13630, and CVE-2020-13632.
Ubuntu 16.04 packages Worker 4.4.0-179-generic 4.4.0-184-generic Updated worker node images with package and kernel updates for CVE-2020-12049, CVE-2020-0543, CVE-2020-12769, CVE-2020-1749, CVE-2020-13434, CVE-2020-13630, andCVE-2020-13632.

Change log for worker node fix pack 1.16.10_1534, released 8 June 2020

The following table shows the changes that are in the worker node fix pack 1.16.10_1534. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.10_1533
Component Previous Current Description
Ubuntu 18.04 packages N/A N/A Updated worker node images with package updates for CVE-2019-1547, CVE-2019-1549, CVE-2019-1551, CVE-2019-1563, and CVE-2020-12762.
Ubuntu 16.04 packages 4.4.0-178-generic 4.4.0-179-generic Updated worker node images with package and kernel updates for CVE-2019-1547, CVE-2019-1551, CVE-2019-1563, and CVE-2020-12762.

Change log for 1.16.10_1533, released 26 May 2020

The following table shows the changes that are in the master and worker node update 1.16.10_1533. Master patch updates are applied automatically. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node. For more information, see Update types.

Changes since version 1.16.9_1531
Component Location Previous Current Description
Cluster health image Master v1.1.1 v1.1.4 When cluster add-ons don't support the current cluster version, a warning is now returned in the cluster health state.
etcd Master v3.3.18 v3.3.20 See the etcd release notes.
Gateway-enabled cluster controller Master 1045 1082 Updated image for CVE-2020-1967.
GPU device plug-in and installer Master 8c6538f 8b02302 Updated image for CVE-2020-1967.
IBM Calico extension Master 320 353 Skips creating a Calico host endpoint when no endpoint is needed. Updated image for CVE-2020-1967.
IBM Cloud File Storage for Classic plug-in and monitor Master 358 373 Updated image for CVE-2020-1967 and CVE-2020-11655.
IBM Cloud Provider Master v1.16.9-219 v1.16.10-243 Updated to support the Kubernetes 1.16.10 release. Updated network load balancer (NLB) events to use the latest IBM Cloud troubleshooting documentation.
Kubernetes Both v1.16.9 v1.16.10 See the Kubernetes release notes.
Kubernetes Dashboard Master v2.0.0-rc7 v2.0.0 See the Kubernetes Dashboard release notes.
Kubernetes Metrics Server Master N/A N/A Increased the CPU per node for the metrics-server container to improve availability of the metrics server API service for large clusters.
Kubernetes NodeLocal DNS cache Master 1.15.4 1.15.13
Load balancer and load balancer monitor for IBM Cloud Provider Master 177 208 Updated the version 2.0 network load balancers (NLB) to clean up unnecessary IPVS rules. Improved application logging. Updated image for CVE-2020-1967.
Ubuntu 18.04 packages Worker 4.15.0-99-generic 4.15.0-101-generic Updated worker node images with kernel and package updates for CVE-2019-20795, CVE-2020-11494, CVE-2020-12762, CVE-2020-3810, CVE-2020-8616, and CVE-2020-8617.
Ubuntu 16.04 packages Worker 4.4.0-178-generic 4.4.0-179-generic Updated worker node images with package and kernel updates for CVE-2019-19060, CVE-2020-11494, CVE-2020-11608, CVE-2020-12762, CVE-2020-3810, CVE-2020-8616, and CVE-2020-8617.

Change log for worker node fix pack 1.16.9_1531, released 11 May 2020

The following table shows the changes that are in the worker node fix pack 1.16.9_1531. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.9_1530
Component Previous Current Description
Ubuntu 18.04 packages 4.15.0-96-generic 4.15.0-99-generic Updated worker node images with kernel and package updates for CVE-2019-19768, CVE-2020-11884, and CVE-2020-12243.
Ubuntu 16.04 packages 4.4.0-177-generic 4.4.0-178-generic Updated worker node images with package and kernel updates for CVE-2019-19768 and CVE-2020-12243.

Change log for worker node fix pack 1.16.9_1530, released 27 April 2020

The following table shows the changes that are in the worker node fix pack 1.16.9_1530. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.8_1528
Component Previous Current Description
containerd v1.3.3 v1.3.4 See the containerd release notes.
HA proxy 1.8.25-30b675 1.8.25-adb65d The update addresses CVE-2020-1967.
Kubernetes v1.16.8 v1.16.9 See the Kubernetes release notes.
Ubuntu 18.04 packages N/A N/A Updated worker node images with package updates for CVE-2018-1000876, CVE-2018-10372, CVE-2018-10373, CVE-2018-10534, CVE-2018-10535, CVE-2018-12641, CVE-2018-12697, CVE-2018-12698, CVE-2018-12699, CVE-2018-12700, CVE-2018-12934, CVE-2018-13033, CVE-2018-17358, CVE-2018-17359, CVE-2018-17360, CVE-2018-17794, CVE-2018-17985, CVE-2018-18309, CVE-2018-18483, CVE-2018-18484, CVE-2018-18605, CVE-2018-18606, CVE-2018-18607, CVE-2018-18700, CVE-2018-18701, CVE-2018-19931, CVE-2018-19932, CVE-2018-20002, CVE-2018-20623, CVE-2018-20651, CVE-2018-20671, CVE-2018-8945, CVE-2018-9138, CVE-2019-12972, CVE-2019-14250, CVE-2019-14444, CVE-2019-17450, CVE-2019-17451, CVE-2019-18348, CVE-2019-9070, CVE-2019-9071, CVE-2019-9073, CVE-2019-9074, CVE-2019-9075, CVE-2019-9077, CVE-2020-11008, CVE-2020-5260, and CVE-2020-8492.
Ubuntu 16.04 packages N/A N/A Updated worker node images with package updates for CVE-2019-18348, CVE-2020-11008, CVE-2020-5260, and CVE-2020-8492.

Change log for master fix pack 1.16.9_1529, released 23 April 2020

The following table shows the changes that are in the master fix pack patch update 1.16.9_1529. Master patch updates are applied automatically.

Changes since version 1.16.8_1528
Component Previous Current Description
Calico configuration N/A N/A Updated to allow egress from the worker nodes via the allow-vrrp GlobalNetworkPolicy.
Cluster health N/A v1.1.1 Cluster health now includes more add-on status information.
CoreDNS 1.6.7 1.6.9 See the CoreDNS release notes. Fixed a bug during Corefile migration that might generate invalid data that makes CoreDNS pods fail.
GPU device plug-in and installer 49979f5 8c6538f Updated the GPU drivers to version 440.33.01.
IBM Cloud Provider v1.16.8-192 v1.16.9-219 Updated to support the Kubernetes 1.16.9 release and to use Go version 1.13.9.
Key Management Service provider 277 v1.0.0 Updated the IBM Key Protect Go client.
Kubernetes v1.16.8 v1.16.9 See the Kubernetes release notes. The update resolves CVE-2020-8555 (see the IBM security bulletin).
Kubernetes Dashboard v2.0.0-rc5 v2.0.0-rc7 See the Kubernetes Dashboard release notes. Added a readiness probe to the Kubernetes Dashboard configuration.
Kubernetes Dashboard metrics scraper v1.0.3 v1.0.4 See the Kubernetes Dashboard metrics scraper release notes.
OpenVPN client N/A N/A Fixed a problem that might cause the vpn-config secret in the kube-system namespace to be deleted during cluster master operations.
Operator Lifecycle Manager Catalog v1.5.11 v1.6.1 See the Operator Lifecycle Manager Catalog release notes.

Change log for worker node fix pack 1.16.8_1528, released 13 April 2020

The following table shows the changes that are in the worker node fix pack 1.16.8_1528. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.8_1527
Component Previous Current Description
HA proxy 1.8.23 1.8.25 See the HA proxy change logs. The update addresses CVE-2020-11100.
Ubuntu 18.04 packages 4.15.0-91-generic 4.15.0-96-generic Updated worker node images with package and kernel updates for CVE-2020-8831, CVE-2020-8833, CVE-2020-11100, and CVE-2020-8834.
Ubuntu 16.04 packages 4.4.0-176-generic 4.4.0-177-generic Updated worker node images with package and kernel updates for CVE-2020-8831, CVE-2020-8833, and CVE-2020-8428.

Change log for worker node fix pack 1.16.8_1527, released 30 March 2020

The following table shows the changes that are in the worker node fix pack 1.16.8_1527. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.8_1526
Component Previous Current Description
Ubuntu 18.04 packages 4.15.0-88-generic 4.15.0-91-generic Updated worker node images with package and kernel updates for CVE-2020-1700, CVE-2020-10531, CVE-2020-2732, CVE-2020-8832, CVE-2019-12387, CVE-2019-12855, CVE-2019-9512, CVE-2019-9514, CVE-2019-9515, CVE-2020-10108, CVE-2020-10109, CVE-2018-20786, and CVE-2019-20079.
Ubuntu 16.04 packages 4.4.0-174-generic 4.4.0-176-generic Updated worker node images with package updates for CVE-2020-10531, CVE-2020-2732, CVE-2017-11109, CVE-2017-6349, and CVE-2017-6350.

Change log for 1.16.8_1526, released 16 March 2020

The following table shows the changes that are in the master and worker node update 1.16.8_1526. Master patch updates are applied automatically. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node. For more information, see Update types.

Changes since version 1.16.7_1525
Component Location Previous Current Description
Cluster health image Master N/A N/A Cluster health status now includes links to IBM Cloud documentation.
IBM Cloud Provider Master v1.16.7-170 v1.16.8-192 Updated to support the Kubernetes 1.16.8 release and to use Go version 1.13.8. Fixed VPC load balancer error message to use the current IBM Cloud Kubernetes Service plug-in CLI syntax.
Kubernetes Both v1.16.7 v1.16.8 See the Kubernetes release notes.
Load balancer and load balancer monitor for IBM Cloud Provider Master 169 177 Version 2.0 network load balancers (NLB) were updated to fix problems with long-lived network connections to endpoints that failed readiness probes.
Operator Lifecycle Manager Catalog Master v1.5.9 v1.5.11 See the Operator Lifecycle Manager Catalog release notes.
Ubuntu 18.04 packages Worker N/A N/A Updated worker node images with package updates for CVE-2019-13734, CVE-2019-13750, CVE-2019-13751, CVE-2019-13752, CVE-2019-13753, CVE-2019-19923, CVE-2019-19924, CVE-2019-19925, CVE-2019-19926, CVE-2019-19959, and CVE-2019-20218.
Ubuntu 16.04 packages Worker N/A N/A Updated worker node images with package updates for CVE-2019-13734, CVE-2019-13750, CVE-2019-13751, CVE-2019-13752, CVE-2019-13753, CVE-2019-19926, and CVE-2019-20218.

Change log for worker node fix pack 1.16.7_1525, released 2 March 2020

The following table shows the changes that are in the worker node fix pack 1.16.7_1525. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node.

Changes since version 1.16.7_1524
Component Previous Current Description
GPU worker node provisioning N/A N/A Fixed bug where new GPU worker nodes could not automatically join clusters that run Kubernetes version 1.16 or 1.17.
Ubuntu 18.04 packages 4.15.0-76-generic 4.15.0-88-generic Updated worker node images with package updates for CVE-2019-5108, CVE-2019-20096, CVE-2019-18885, CVE-2019-19082, CVE-2019-19078, CVE-2019-19332, CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, and CVE-2016-9843.
Ubuntu 16.04 packages 4.4.0-173-generic 4.4.0-174-generic Updated worker node images with kernel and package updates for CVE-2019-20096, CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, and CVE-2016-9843.

Change log for fix pack 1.16.7_1524, released 17 February 2020

The following table shows the changes that are in the master and worker node fix pack update 1.16.7_1524. Master patch updates are applied automatically. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node. For more information, see Update types.

Changes since version 1.16.5_1523
Component Location Previous Current Description
containerd Worker v1.3.2 v1.3.3 See containerd release notes. Update resolves CVE-2019-19921, CVE-2019-16884, CVE-2020-0601, CVE-2020-7919, and CVE-2019-11253.
CoreDNS Master 1.6.6 1.6.7 See the CoreDNS release notes.
GPU device plug-in and installer Master da19df3 49979f5 Image updated for CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843, CVE-2019-5188, CVE-2018-16888, CVE-2019-20386, CVE-2019-3843, CVE-2019-3844 and CVE-2020-1712.
IBM Cloud File Storage for Classic plug-in and monitor Master 357 358 Image updated for CVE-2019-5188.
IBM Cloud Provider Master v1.16.5-148 v1.16.7-170 Updated to support the Kubernetes 1.16.7 release and to use Go version 1.13.6 and calicoctl version 3.9.5.
Kubernetes Both v1.16.5 v1.16.7 See the Kubernetes release notes. The master update resolves CVE-2019-11254 and CVE-2020-8552 (see the IBM security bulletin), and the worker node update resolves CVE-2020-8551 (see the IBM security bulletin).
Kubernetes Dashboard Master v2.0.0-rc2 v2.0.0-rc5 See the Kubernetes Dashboard release notes.
Kubernetes Dashboard Metrics Scraper Master v1.0.2 v1.0.3 See the Kubernetes Dashboard metrics scraper release notes.
OpenVPN server Master N/A N/A OpenVPN server is now restarted during cluster master refresh.
Operator Lifecycle Manager Master 0.13.0 0.14.1 See the Operator Lifecycle Manager release notes.
Operator Lifecycle Manager Catalog Master v1.5.6 v1.5.9 See the Operator Lifecycle Manager Catalog release notes.
Ubuntu 18.04 packages Worker N/A N/A Updated worker node images with package updates for CVE-2019-19956, CVE-2020-7595, CVE-2019-18634, CVE-2019-3843, CVE-2019-3844, CVE-2019-20386, and CVE-2020-1712.
Ubuntu 16.04 packages Worker N/A N/A Updated worker node images with package updates for CVE-2019-19956, CVE-2020-7595, CVE-2019-18634, CVE-2018-16888, CVE-2019-20386, andCVE-2020-1712.

Change log for worker node fix pack 1.16.5_1523, released 3 February 2020

The following table shows the changes that are in the worker node fix pack 1.16.5_1523.

Changes since version 1.16.5_1522
Component Previous Current Description
Ubuntu 18.04 packages 4.15.0-74-generic 4.15.0-76-generic Updated worker node images with kernel and package updates for CVE-2019-19906, CVE-2019-5188, CVE-2019-20367, CVE-2020-7053, CVE-2019-14615, CVE-2019-15796, CVE-2019-15795, CVE-2017-16808, CVE-2018-10103, CVE-2018-10105, CVE-2018-14461, CVE-2018-14462, CVE-2018-14463, CVE-2018-14464, CVE-2018-14465, CVE-2018-14466, CVE-2018-14467, CVE-2018-14468, CVE-2018-14469, CVE-2018-14470, CVE-2018-14879, CVE-2018-14880, CVE-2018-14881, CVE-2018-14882, CVE-2018-16227, CVE-2018-16228, CVE-2018-16229, CVE-2018-16230, CVE-2018-16300, CVE-2018-16451, CVE-2018-16452, CVE-2018-19519, CVE-2019-1010220, CVE-2019-15166, and CVE-2019-15167.
Ubuntu 16.04 packages 4.4.0-171-generic 4.4.0-173-generic Updated worker node images with package updates for CVE-2019-19906, CVE-2019-5188, CVE-2019-20367, CVE-2019-14615, CVE-2019-18885, CVE-2019-19332, CVE-2019-19062, CVE-2019-15796, CVE-2019-15795, CVE-2017-16808, CVE-2018-10103, CVE-2018-10105, CVE-2018-14461, CVE-2018-14462, CVE-2018-14463, CVE-2018-14464, CVE-2018-14465, CVE-2018-14466, CVE-2018-14467, CVE-2018-14468, CVE-2018-14469, CVE-2018-14470, CVE-2018-14879, CVE-2018-14880, CVE-2018-14881, CVE-2018-14882, CVE-2018-16227, CVE-2018-16228, CVE-2018-16229, CVE-2018-16230, CVE-2018-16300, CVE-2018-16451, CVE-2018-16452, CVE-2018-19519, CVE-2019-1010220, CVE-2019-15166, CVE-2019-15167, CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, and CVE-2016-9843.

Change log for 1.16.5_1522, released 20 January 2020

The following table shows the changes that are in the master and worker node patch update 1.16.5_1522. Master patch updates are applied automatically. Worker node patch updates can be applied by updating, reloading (in classic infrastructure), or replacing (in VPC infrastructure) the worker node. For more information, see Update types.

Changes since version 1.16.3_1521
Component Previous Current Description
Calico v3.9.3 v3.9.5 See the Calico release notes.
Cluster master HA Proxy 1.8.21-alpine 1.8.23-alpine See the HAProxy release notes. Update resolves CVE-2019-1551.
CoreDNS 1.6.2 1.6.6 See the CoreDNS release notes. Update resolves CVE-2019-19794.
etcd v3.3.17 v3.3.18 See the etcd release notes. Update resolves CVE-2019-1551.
Gateway-enabled cluster controller 1032 1045 Updated image for CVE-2019-1551.
GPU device plug-in and installer f2e7bd7 da19df3 Updated image for CVE-2019-13627 and CVE-2019-1551. Updated the GPU drivers to version 440.44.
IBM Calico extension 130 258 Updated image for CVE-2019-1551.
IBM Cloud File Storage for Classic plug-in and monitor 354 357
IBM Cloud Provider v1.16.3-115 v1.16.5-148 Updated to support the Kubernetes 1.16.5 release.
Key Management Service provider 270 277 Updated the IBM Key Protect Go client.
Kubernetes v1.16.3 v1.16.5 See the Kubernetes release notes.
Kubernetes Dashboard v2.0.0-beta8 v2.0.0-rc2 See the Kubernetes Dashboard release notes.
Kubernetes Metrics Server N/A N/A Increased the metrics-server container's base CPU and memory to improve availability of the metrics server API service.
Load balancer and load balancer monitor for IBM Cloud Provider 159 169 Updated image for CVE-2019-1551.
OpenVPN server 2.4.6-r3-IKS-121 2.4.6-r3-IKS-131 Updated image for CVE-2019-1551.
Operator Lifecycle Manager Catalog v1.5.4 v1.5.6 See the Operator Lifecycle Manager Catalog release notes.
Ubuntu 18.04 packages 4.15.0-72-generic 4.15.0-74-generic Updated worker node images with package updates for CVE-2019-13627, CVE-2019-14901, CVE-2019-14896, CVE-2019-14897, CVE-2019-14895, CVE-2019-18660, CVE-2019-19083, and CVE-2019-17006.
Ubuntu 16.04 packages 4.4.0-170-generic 4.4.0-171-generic Updated worker node images with package updates for CVE-2019-13627, CVE-2019-14901, CVE-2019-14896, CVE-2019-14897, CVE-2019-14895, CVE-2019-18660, and CVE-2018-12327.

Change log for worker node fix pack 1.16.3_1521, released 23 December 2019

The following table shows the changes that are in the worker node fix pack 1.16.3_1521.

Changes since version 1.16.3_1519
Component Previous Current Description
Ubuntu 18.04 packages N/A N/A Updated worker node images with package updates for CVE-2019-1348, CVE-2019-1349, CVE-2019-1350, CVE-2019-1351, CVE-2019-1352, CVE-2019-1353, CVE-2019-1354, CVE-2019-1387, CVE-2019-19604, CVE-2019-15165, and CVE-2019-17007.
Ubuntu 16.04 packages N/A N/A Updated worker node images with package updates for CVE-2019-1348, CVE-2019-1349, CVE-2019-1350, CVE-2019-1351, CVE-2019-1352, CVE-2019-1353, CVE-2019-1354, CVE-2019-1387, CVE-2019-19604, and CVE-2019-15165.

Change log for master fix pack 1.16.3_1520, released 17 December 2019

The following table shows the changes that are in the master fix pack 1.16.3_1520.

Changes since version 1.16.3_1519
Component Previous Current Description
Gateway-enabled cluster controller 924 1032 Support for Adding classic infrastructure servers to gateway-enabled classic clusters is now generally available (GA). In addition, the controller is updated to use Alpine base image version 3.10 and to use Go version 1.12.11.
IBM Calico extension N/A 130 New!: Added a Calico node init container that creates Calico private host endpoints for worker nodes.
IBM Cloud File Storage for Classic plug-in and monitor 353 354 Updated to support non-root user access to an NFS file share by allocating a group ID (GID) in the storage class.
IBM Cloud Provider v1.16.3-94 v1.16.3-115 Updated version 1.0 and 2.0 network load balancers (NLBs) to prefer scheduling NLB pods on worker nodes that don't currently run any NLB pods. In addition, the Virtual Private Cloud (VPC) load balancer plug-in is updated to use Go version 1.12.11.
Key Management Service provider 254 270 Improves performance of secret management by minimizing the number of data encryption keys (DEKs) that are used to unwrap secrets in the cluster. In addition, the IBM Key Protect Go client is updated.
Kubernetes add-on resizer 1.8.5 1.8.7 See the Kubernetes add-on resizer release notes.
Kubernetes Metrics Server N/A N/A The nanny container is fixed (see Kubernetes add-on resizer component) and added back to the metrics-server pod, which removes the Kubernetes 1.16 limitation to Adjusting cluster metrics provider resources.
Kubernetes Dashboard v2.0.0-beta6 v2.0.0-beta8 See the Kubernetes Dashboard release notes.
Operator Lifecycle Manager Catalog v1.4.0 v1.5.4 See the Operator Lifecycle Manager Catalog release notes.
Operator Lifecycle Manager 0.12.0 0.13.0 See the Operator Lifecycle Manager release notes.

Change log for worker node fix pack 1.16.3_1519, released 9 December 2019

The following table shows the changes that are in the worker node fix pack 1.16.3_1519.

Changes since version 1.16.3_1518
Component Previous Current Description
containerd v1.3.1 v1.3.2 See the containerd release notes.
Ubuntu 16.04 kernel and packages 4.4.0-169-generic 4.4.0-170-generic Updated worker node images with kernel and package updates for CVE-2018-20784, CVE-2019-16168, and CVE-2019-5827.
Ubuntu 18.04 kernel and packages 4.15.0-70-generic 4.15.0-72-generic Updated worker node images with a kernel and package updates for CVE-2019-11745, CVE-2019-16168, CVE-2019-19330, and CVE-2019-5827.

Change log for worker node fix pack 1.16.3_1518, released 25 November 2019

The following table shows the changes that are in the worker node fix pack 1.16.3_1518.

Changes since version 1.16.2_1515
Component Previous Current Description
containerd v1.3.0 v1.3.1 See the containerd release notes. Update resolves CVE-2019-16884 and CVE-2019-17596.
Kubernetes v1.16.2 v1.16.3 See the Kubernetes release notes.
Ubuntu 16.04 kernel and packages 4.4.0-166-generic 4.4.0-169-generic Updated worker node images with kernel and package updates for CVE-2018-12207, CVE-2019-0154, CVE-2019-0155, CVE-2019-11135, CVE-2019-15098, CVE-2019-17052, CVE-2019-17053, CVE-2019-17054, CVE-2019-17055, CVE-2019-17056, and CVE-2019-17666.
Ubuntu 18.04 kernel and packages 4.15.0-66-generic 4.15.0-70-generic Updated worker node images with a kernel fix for unexpected configure fair group scheduler (CFS) throttling. The kernel and package updates resolve CVE-2018-12207, CVE-2019-0154, CVE-2019-0155, CVE-2019-11135, CVE-2019-15098, CVE-2019-17666, and CVE-2019-6477.

Change log for master fix pack 1.16.3_1518, released 21 November 2019

The following table shows the changes that are in the master fix pack 1.16.3_1518.

Changes since version 1.16.2_1515
Component Previous Current Description
Calico v3.9.2 v3.9.3 See the Calico release notes. Update resolves CVE-2019-1547, CVE-2019-1549, CVE-2019-1563, CVE-2019-5094, and DSA-4539-3.
GPU device plug-in and installer 9cd3df7 f2e7bd7 Updated image for CVE-2019-17596. Updated the GPU drivers to version 440.31.
IBM Cloud File Storage for Classic plug-in and monitor 351 353 Updated to use Go version 1.12.11.
IBM Cloud Provider v1.16.2-77 v1.16.3-94 Updated to support the Kubernetes 1.16.3 release. calicoctl version is updated to v3.9.3.
Key Management Service provider 237 254 Updated to use Go version 1.12.13.
Kubernetes v1.16.2 v1.16.3 See the Kubernetes release notes.
Kubernetes Dashboard v2.0.0-beta5 v2.0.0-beta6 See the Kubernetes Dashboard release notes.

Change log for worker node fix pack 1.16.2_1515, released 11 November 2019

The following table shows the changes that are in the worker node fix pack 1.16.2_1515.

Changes since version 1.16.2_1514
Component Previous Current Description
kubelet configuration N/A N/A Updated the --pod-max-pids option and the pid resource under the --kube-reserved and --system-reserved options to scale the available and reserved PIDs based on worker node flavor.
Ubuntu 16.04 packages N/A N/A Updated worker node images with package updates for CVE-2019-11481, CVE-2019-11482, CVE-2019-11483, CVE-2019-11485, CVE-2019-14866, CVE-2019-15790, CVE-2019-18218, and CVE-2019-18277.
Ubuntu 18.04 packages N/A N/A Updated worker node images with package updates for CVE-2019-11481, CVE-2019-11482, CVE-2019-11483, CVE-2019-11485, CVE-2019-12290, CVE-2019-14866, CVE-2019-15790, CVE-2019-18218, CVE-2019-18224, and CVE-2019-18277.

Change log for 1.16.2_1514, released 4 November 2019

The following tables show the changes that are in the patch 1.16.2_1514. If you update to this version from an earlier version, you choose when to update your cluster master and worker nodes. For more information, see Update types and Version 1.16.

Master patch

Master patch: Changes since version 1.15.5_1520
Component Previous Current Description
Calico v3.8.2 v3.9.2 See the Calico release notes.
CoreDNS 1.3.1 1.6.2

See the CoreDNS release notes. This update includes the following configuration changes. - CoreDNS now runs 3 replica pods by default, and the pods prefer to schedule across worker nodes and zones to improve cluster DNS availability. If you update your cluster to version 1.16 from an earlier version, you can configure the CoreDNS autoscaler to use a minimum of 3 pods.

  • CoreDNS caching is updated to better support older DNS clients. If you disabled the CoreDNS cache plug-in, you can now re-enable the plug-in.
  • The CoreDNS deployment is now configured to check readiness by using the ready plug-in.
  • CoreDNS version 1.6 no longer supports the proxy plug-in, which is replaced by the forward plug-in. In addition, the CoreDNS kubernetes plug-in no longer supports the resyncperiod option and ignores the upstream option.
IBM Cloud File Storage for Classic plug-in and monitor 350 351 Updated to use the distroless/static base image and to use Go version 1.12.10.
Kubernetes v1.15.5 v1.16.2 See the Kubernetes release notes.
Kubernetes configuration N/A N/A Kubernetes service account token volume projection is enabled and issues tokens that use https://kubernetes.default.svc as the default API audience.
Kubernetes admission controllers configuration N/A N/A The RuntimeClass admission controller is disabled to align with the RuntimeClass feature gate, which was disabled in IBM Cloud Kubernetes Service version 1.14.
Kubernetes Dashboard v1.10.1 v2.0.0-beta5 See the Kubernetes Dashboard release notes. Unlike the previous version, the new Kubernetes dashboard version works with the metrics-server to display metrics.
Kubernetes Dashboard metrics scraper N/A v1.0.2 See the Kubernetes Dashboard metrics scraper release notes.
Kubernetes DNS autoscaler 1.6.0 1.7.1 See the Kubernetes DNS autoscaler release notes.
Operator Lifecycle Manager Catalog N/A v1.4.0 See the Operator Lifecycle Manager Catalog release notes.
Operator Lifecycle Manager N/A 0.12.0 See the Operator Lifecycle Manager release notes.

Worker node patch

Worker node patch: Changes since version 1.15.5_1521
Component Previous Current Description
containerd v1.2.10 v1.3.0 See the containerd release notes. The containerd configuration now sets stream_idle_timeout to 30m, lowered from 4h. This stream_idle_timeout configuration is the maximum time that a streaming connection such as kubectl exec can be idle before the connection is closed. Also, the container runtime type is updated to io.containerd.runc.v2.
kubelet configuration N/A N/A Updated the --pod-max-pids option and the pid resource under the --kube-reserved and --system-reserved options to scale the available and reserved PIDs based on worker node flavor.
Kubernetes v1.15.5 v1.16.2 See the Kubernetes release notes.