Support Dates for Release Versions

Support Dates for PubSub+ Software Event Brokers,
SolOS Firmware, and Event Broker Services

The support dates for specific versions of Solace PubSub+ software event broker, SolOS firmware, and event broker services in PubSub+ Cloud are provided below. Version history can be found here. Support is N/A (not applicable) when not available. Not all software event broker releases are available in PubSub+ Cloud as indicated with N/A in the table that follows. For a better understanding of the expected availability of a software event broker version, upgrades, and types of release in PubSub+ Cloud, see the documentation.

Version	PubSub+ Product	Release Type	Availability	End of Full Support	End of Technical Support
9.12.1	Software Event Broker and SolOS	Production Release, Long Term Support	December 14, 2021	December 31, 2024	December 31, 2024
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	January 31, 2022 Upgrades: February 28, 2022	December 31, 2022	June 30, 2023
9.13.0	Software Event Broker and SolOS	Preview Release	January 26, 2022	N/A	January 31, 2023
	PubSub+ Cloud	N/A	N/A	N/A	N/A
9.13.1	Software Event Broker and SolOS	Production Release	March 15, 2022	March 15, 2023	March 15, 2025
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	April 30, 2022 Upgrades: Not Supported	March 15, 2023	September 15, 2023
10.0.0	Software Event Broker and SolOS	Preview Release	April 26, 2022	N/A	April 26, 2023
	PubSub+ Cloud	N/A	N/A	N/A	N/A
10.0.1	Software Event Broker and SolOS	Production Release, Long Term Support	June 21, 2022	June 21, 2025	June 21, 2025
	PubSub+ Cloud	Production Release (Supports VM-based and Kubernetes)	August 12, 2022 Upgrades: August 29, 2022	March 31, 2024	September 30, 2024
10.1.0	Software Event Broker and SolOS	Preview Release	July 14, 2022	N/A	July 14, 2023
	PubSub+ Cloud	N/A	N/A	N/A	N/A
10.1.1	Software Event Broker and SolOS	Production Release	September 15, 2022	September 15, 2023	September 15, 2025
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	October 20, 2022 Upgrades: Not Supported	September 15, 2023	March 15, 2024
10.2.0	Software Event Broker and SolOS	Preview Release	October 31, 2022	N/A	October 31, 2023
	PubSub+ Cloud	N/A	N/A	N/A	N/A
10.2.1	Software Event Broker and SolOS	Production Release	December 16, 2022	December 15, 2023	December 15, 2025
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	January 19, 2023 Upgrades: February 19, 2023	December 15, 2023	June 15, 2024
10.3.0	Software Event Broker and SolOS	Preview Release	January 31, 2023	N/A	January 31, 2024
	PubSub+ Cloud	N/A	N/A	N/A	N/A
10.3.1	Software Event Broker and SolOS	Production Release	March 15, 2023	March 15, 2024	March 15, 2026
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	April 18, 2023 Upgrades: Not Supported	March 15, 2024	September 15, 2024
10.4.0	Software Event Broker and SolOS	Preview Release	April 25, 2023	N/A	April 25, 2024
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	May 17, 2023 Upgrades: Not Supported	N/A	November 17, 2023
10.4.1	Software Event Broker and SolOS	Production Release, Long Term Support	June 20, 2023	June 15, 2026	June 15, 2026
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	July 6, 2023 Upgrades: July 6, 2023	June 15, 2024	December 15, 2024
10.5.0	Software Event Broker and SolOS	Preview Release	July 26, 2023	N/A	July 26, 2024
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	August 8, 2023 Upgrades: Not Supported	N/A	February 8, 2024
10.5.1	Software Event Broker SolOS	Production Release	September 22, 2023	September 15, 2024 June 30, 2024	September 15, 2026
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	September 22, 2023 Upgrades: September 22, 2023	September 15, 2024	March 15, 2025
10.6.0	Software Event Broker and SolOS	Preview Release	October 31, 2023	N/A	October 31, 2024
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	October 31, 2023 Upgrades: Not Supported	N/A	April 30, 2024
10.6.1	Software Event Broker and SolOS	Production Release	December 15, 2023	December 15, 2024	December 15, 2026
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	December 15, 2023 Upgrades: December 15, 2023	December 15, 2024	June 15, 2025
10.7.0	Software Event Broker and SolOS	Preview Release	January 25, 2024	N/A	January 15, 2025
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	January 25, 2024 Upgrades: Not Supported	N/A	July 15, 2024
10.7.1	Software Event Broker and SolOS	Production Release	March 18, 2024	March 15, 2025	March 15, 2027
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	March 18, 2024 Upgrades: March 2024	March 15, 2025	September 15, 2025
10.8.0	Software Event Broker and SolOS	Preview Release	April 30, 2024	N/A	April 30, 2025
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	April 30, 2024 Upgrades: Not Supported	N/A	October 31, 2024
10.8.1	Software Event Broker and SolOS	Production Release, Long Term Support	June 14, 2024	June 15, 2027	June 15, 2027
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	June 14, 2024 Upgrades: June 2024	June 15, 2026	June 15, 2026
10.9.1	Software Event Broker and SolOS	Production Release	October 4, 2024	September 15, 2025	September 15, 2027
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	October 4, 2024 Upgrades: October 2024	September 15, 2025	March 15, 2026
10.10.0	Software Event Broker and SolOS	Preview Release	October 31, 2024	N/A	October 31, 2025
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	October 31, 2024 Upgrades: Not Supported	N/A	April 30, 2025
10.10.1	Software Event Broker and SolOS	Production Release	December 13, 2024	December 15, 2025	December 15, 2027
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	December 13, 2024 Upgrades: December 2024	December 15, 2025	June 15, 2026
10.11.0	Software Event Broker and SolOS	Preview Release	January 28, 2025	N/A	January 31, 2026
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	January 28, 2025 Upgrades: Not Supported	N/A	July 31, 2025
(Planned) 10.11.1	Software Event Broker and SolOS	Production Release	(Planned) March 2025	(Planned) March 2026	(Planned) March 2028
	PubSub+ Cloud	Production Release (Supports Kubernetes only)	(Planned) March 2025 Upgrades: March 2025	(Planned) March 2026	(Planned) September 2026
(Planned) 10.12.0	Software Event Broker and SolOS	Preview Release	(Planned) April 2025	N/A	(Planned) April 2026
	PubSub+ Cloud	Preview Release (Supports Kubernetes only)	(Planned) April 2025 Upgrades: Not Supported	N/A	(Planned) October 2025

Release Type Definitions

• Preview Release: Generally available software release intended for new feature introduction and integration.
  Technical support for one year from release date. Any critical bugs or security issues discovered in a preview release will be addressed,
  at the earliest, in the next production release.
• Production Release: Generally available software release intended for production use. Full support (as defined below)
  for one year followed by two years of technical support (as defined below). Released up to three times per year.
• Production Release, Long Term Support: Generally available software release intended for production use.
  Full Support for three years. Released once per year.

Support Types

• Full Support: Qualified security errata and urgent selected bug fixes will be released as they become available. Qualified security errata include critical and high common vulnerability and exposures (CVEs) and critical and important Red Hat security advisories (RHSAs). Customers may upgrade any release that is in full support or technical support to any newer release that is in full support or is a preview release. Customers may upgrade to a preview release until such preview release is replaced by its production release. Customers have access to the Solace support team.
• Technical Support: No maintenance releases will be provided. Upgrades to newer releases are supported.
  Customers have access to the Solace support team.

New Release Cadence and Support Cycle

Beginning with the 2025 annual Solace PubSub+ Event Broker Long Term Support (LTS) release in June, Solace will be transitioning to a new broker-release strategy for all PubSub+ Event Broker products, including Appliance, Software Broker, and PubSub+ Cloud. We will now offer only LTS and Regular releases.

This release cycle change aligns with industry-standard practices, allowing Solace to deliver more secure and reliable updates for PubSub+ Event Broker products. By accelerating the release cadence, adopting a clear back-porting policy, and simplifying release categories, Solace can quickly address security vulnerabilities, fix critical bugs, and deliver innovative features.

Support Policies and Definitions Summary

The following policies and definitions will take effect with the June 2025 LTS Event Broker release:

• Long-Term Support (LTS) Release—A production-ready release available in June each year with maintenance releases every two weeks. LTS releases are supported for two years and will receive updates through Maintenance releases. Solace recommends planning your production deployments based on the LTS schedule and upgrade to Maintenance releases as they become available.

• Regular Release—A generally-available release intended for new feature introduction and integration and occurs every two weeks after the LTS release. Regular releases are supported for two years and will not receive updates through Maintenance Releases.

• Maintenance Release—Updates for LTS releases(only) containing security fixes and product fixes. Maintenance releases will be published on a two-week cadence.

• Backporting—Fixes for severity 1 and 2 issues and vulnerabilities in LTS releases, delivered via maintenance releases as long as, in the opinion of Solace, they do not introduce any instability risks. In situations where there are potential instability risks, Solace will publish backporting exceptions.

• Vulnerability—Security advisories are issued for all vulnerabilities. A vulnerability is defined as any security software bugs in Solace software or included in third-party dependencies which result in a loss of confidentiality, integrity, data availability, or platform availability. Remediation timelines are based on the availability of an industry-defined fix with Critical (CVSS v3 9.0-10.0) within 15 days, High (CVSS v3 7.0-8.9) within 30 days, and Medium/Low (CVSS v3 0.1-6.9) within 90 days.

• Upgrades—Supported to any higher release numbered version (as long as the new version was released after the current version).

• Version Numbering—Four-segment numbering scheme (e.g., 10.25.0.123). major release (10), year (25), release type (0 for LTS, 1+ for Regular releases), build number (123). For example, 10.25.0 is an LTS release, and 10.25.1, 10.25.2, etc. are subsequent Regular releases, while Maintenance releases are identified as 10.25.0.100, 10.25.0.123, etc.

For more information, please contact Solace support or your account team.

Support Dates for PubSub+ Messaging APIs