Help Center/ Cloud Search Service/ Product Bulletin/ Lifecycle of CSS Cluster Versions
Updated on 2024-08-19 GMT+08:00
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Lifecycle of CSS Cluster Versions

Version Description

Currently, CSS uses three engines: Elasticsearch, Logstash, and OpenSearch. Elasticsearch and OpenSearch are data storage engines whose version lifecycle you need to pay attention to.

The major versions provided by CSS are as follows. The version numbers are consistent with the open-source versions.

  • Elasticsearch engine: 5.5.1, 6.2.3, 6.5.4, 6.8.23 (intermediate version), 7.1.1, 7.6.2, 7.9.3, and 7.10.2. Currently, you can create clusters of versions 7.6.2 and 7.10.2 on the console.
  • OpenSearch engine: 1.3.6 and 2.11.0. Currently, you can create clusters of version 1.3.6 on the console but cannot upgrade them.
  • Logstash engine: 5.6.16 and 7.10.0. Currently, you can create clusters of version 7.10.0 on the console but cannot upgrade them.

Cluster Version Upgrade

The following upgrade capabilities are provided:

  • Same-version upgrade: Upgrade the old version to the latest version. For example, you can upgrade the 7.6.2 version released in 2020 to the 7.6.2 version released in 2023. Same version upgrade is to upgrade the kernel patch of a cluster to fix problems or optimize performance.
  • Cross-version upgrade: Upgrade an earlier version to a later version. It aims to enhance functions or incorporate versions.
  • Cross-engine upgrade (being built): Upgrade the Elasticsearch version to the OpenSearch version.

The target version varies according to the original version. The supported version upgrade capabilities are as follows:

Table 1 Version upgrade for Elasticsearch clusters

Source Version

Target Version

5.5.1

5.5.1 (latest)

6.2.3

6.2.3 (latest), 6.5.4, 6.8.23

6.5.4

6.5.4 (latest), 6.8.23

6.8.23

7.6.2, 7.10.2

7.1.1

7.1.1 (latest), 7.6.2, 7.10.2

7.6.2

7.6.2 (latest), 7.10.2

7.9.3

7.9.3 (latest), 7.10.2

7.10.2

7.10.2 (latest)

Note:

  • 7.6.2 and 7.10.2 are mainstream versions. You are advised to upgrade your clusters to these two versions. The supported target versions are displayed in the drop-down list of Target Image.
  • Clusters of version 5.X cannot be upgraded. Clusters of versions 6.2.3 and 6.5.4 can be upgraded to 6.8.23 and then to 7.X.X.

Version Constraints

  • After a cluster is upgraded, it cannot be rolled back to an earlier version.
  • Once started, an upgrade task cannot be stopped until it succeeds or fails.

Version Release Cycle/Version Lifecycle

Table 2 Common terms about version lifecycle

Term

Definition

End of marketing (EOM)

The deployment of a cloud service version is stopped and the cloud service version is no longer deployed on the live network.

End of Full Support (EOFS)

The fixing of common software bugs in a specified cloud service version stops. The support covers only the fixing of mission-critical issues and security issues and the necessary upgrades.

End of Service (EOS)

The cloud service version is no longer used. The live network version needs to be upgraded to the latest cloud service version.

For a newly released CSS version, the EOM date is four years later, the EOFS date is one year after EOM, and the EOS date is half a year after EOFS.

Table 3 Lifecycle of CSS cluster versions

Engine Type

Version

Status

Release Time

EOM Date

EOFS Date

EOS Date

Elasticsearch

5.5.1

EOS

2017.09.30

2021.09.30

2022.09.30

2023.03.30

6.2.3

EOS

2018.06.30

2022.06.30

2023.06.30

2023.12.30

6.5.4

EOFS

2019.03.30

2023.03.30

2024.03.30

2024.09.30

6.8.23 (Intermediate version of feature upgrade; Cannot be purchased separately)

NA

NA

NA

NA

NA

7.1.1

Released

2019.09.30

2023.09.30

2024.09.30

2025.03.30

7.6.2

Released

2020.06.30

2024.06.30

2025.06.30

2025.12.30

7.9.3

Released

2020.12.30

2024.12.30

2025.12.30

2026.06.30

7.10.2

Released

2022.03.30

2026.03.30

2027.03.30

2027.09.30

OpenSearch

1.3.6

Released

2023.06.30

2027.06.30

2028.06.30

2028.12.30

2.11.0

Released

2023.12.30

2027.12.30

2028.12.30

2029.06.30

Logstash

5.6.16

Released

2020.12.30

2024.12.30

2025.12.30

2026.06.30

7.10.0

Released

2020.12.30

2024.12.30

2025.12.30

2026.06.30

The versions listed in the table are major CSS versions. The lifecycle and EOX dates of other whitelisted versions are the same as those of major CSS versions.

Recommended Action After Version EOX

  • Version upgrade: The Elasticsearch engine versions can be upgraded. For details, see Table 1.
  • Cluster migration: Elasticsearch 5.5.1 does not support cross-version upgrade. You can perform cross-version upgrade through cluster migration. The Logstash engine cannot be directly upgraded. You are advised to save the configuration file conf in the original cluster as a user-defined template. After creating a cluster, select the saved conf template from the user-defined template of the new cluster to restore the cluster.