Version Adoption in Solace Cloud
Solace Cloud follows a defined version adoption policy for making new releases of Solace Software Event Brokers available.
The key benefits of our version adoption policy are:
Predictable, scheduled releases in Solace Cloud
Solace Cloud makes new releases of the underlying software event broker available on a two-week rolling release cadence with a June release designated as a Long Term Support (LTS) release. Existing event broker services can upgrade to any higher version released after your current version. This cadence makes it easy for you to plan upgrades. For more information, see Availability of Releases in Solace Cloud.
For details about the software event broker versions, see Event Broker Features and Releases.
Defined support for each software event broker version in Solace Cloud
Long Term Support releases come with two years of support. Rolling releases are supported until the subsequent LTS release. LTS releases receive maintenance releases every two weeks with security and product fixes. Rolling releases provided every two weeks include both feature and security updates, along with product fixes. Unlike LTS versions, separate maintenance updates are not provided for rolling releases. For more information, see Support Phases in Solace Cloud below, and Software Event Broker Versions and Support in Solace Cloud.
Defined upgrade path for software event broker releases
You can upgrade to any higher release numbered version that was released after your current version and was released while your current version was still within its active support period. Upgrading is easy to schedule and requires minimal effort from you. For more information, see Upgrading Event Broker Services in Solace Cloud.
Availability of Releases in Solace Cloud
Event broker service versions that have fallen out of support are no longer available in your account and may not be visible.
Types of Releases in Solace Cloud
Solace offers two generally available release types for Solace Cloud: Long Term Support (LTS) and Rolling.
Long Term Support (LTS) releases are specially designated rolling releases available in June of each year with maintenance releases every two weeks for two years. They offer the following:
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Maintenance releases every two weeks containing security and product fixes.
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Security advisories for all vulnerabilities. We define vulnerabilities as any security software bug in Solace software or third-party dependencies that could result in a loss of confidentiality, integrity, or potential instability risk. We issue security fixes for vulnerabilities as part of a maintenance release within a time frame based on the severity of the vulnerability (for more information, see the Common Vulnerability Scoring System v3.0: Specification Document):
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Critical (CVSS v3 9.0-10.0) within 15 days
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High (CVSS v3 7.0-8.9) within 30 days
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Medium/Low (CVSS v3 0.1-6.9) within 90 days
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Backporting of fixes for severity 1 and 2 issues and vulnerabilities in LTS releases are delivered via maintenance releases as long as, in the opinion of Solace, they do not introduce any instability risks.
Rolling releases are generally available releases intended for new feature introduction. Rolling releases introduce new features that will be available in the next Long Term Support release. They also include the security and product fixes provided in the maintenance releases for LTS releases. They have the following limitations compared to LTS releases:
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Solace supports Rolling releases starting with 10.26.8 until the subsequent LTS release, and supports earlier Rolling releases for two years. Rolling releases do not receive maintenance releases. Security issues identified in a Rolling release are addressed in a later Rolling release.
Support Phases in Solace Cloud
Each Long Term Support release has full support for two years from its release date. Each Rolling release starting with 10.26.8 has full support until the subsequent LTS release. For more information for the support dates of earlier Rolling releases, see
| Release type | Support time frame | What's included in the Support Phase |
|---|---|---|
| Long Term Support release | Two years from the release date of the LTS release software event broker. |
Maintenance releases every two weeks, including security and product fixes as outlined in Types of Releases in Solace Cloud. |
| Rolling release | Until the release of the subsequent LTS release of the software event broker. |
No maintenance releases, but you can upgrade at any time to any higher release numbered version that was released after your current version and was released while your current version was still within its active support period. |
Release Cadence in Solace Cloud
Solace releases rolling releases every two weeks with a release designated as the Long Term Support release every June. You can view the release cadence dates at
The following diagram shows an example of the release cadence, including:
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The two-week release cadence with LTS release in June
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Two-year support duration for LTS releases, and for Rolling release, they are supported until the subsequent LTS release. For example, the Rolling release of 10.26.8 is supported until the LTS release of 10.27.0.
Note that the maintenance releases provided every two weeks for the LTS release for its two-year support duration are not all depicted in the illustration below.
The version numbers in the diagram below are only for illustrative purposes and may not reflect the software event broker versions that are currently available in Solace Cloud. For information about the supported software event broker versions, see Software Event Broker Versions and Support in Solace Cloud. In addition, the support time frames are relative to when the software event broker version is released by Solace. For more information, see Support Phases in Solace Cloud.
Rolling releases 10.26.7 and earlier have different support dates. For more information, see
