Apache Flink 1.9 lifecycle
Current status
Apache Flink 1.9 is currently in standard support.
Official lifecycle source: Apache Flink Downloads
- Support phase
- standard support
- End of life
- Not officially published
- Latest release
- 1.9.3
- Released
- 17 Apr 2020
At a glance
- Version line
- 1.9
- Initial release
- 19 Aug 2019
- Lifecycle phase
- standard support
- Latest stable
- 1.9.3
- Latest release date
- 17 Apr 2020
- EOL
- Not officially published
- Risk
- low
- Releases tracked
- 4
Lifecycle timeline
Phases from published LifecyclePeriod records. Missing phases are not inferred.
Release
19 Aug 2019
standard supportcurrent
19 Aug 2019 → —
Source: Apache Flink Downloads
Apache Flink 1.9 is currently in standard support.
Upgrade options
Newer supported Apache Flink version lines from CompatHub lifecycle data. Compatibility and security context use existing evidence only.
You are on Apache Flink 1.9
Supported
Supported upgrade options
- Apache Flink 2.3Upgrade planner →Supported· 1 major version newer
- Apache Flink 2.2Upgrade planner →Supported· 1 major version newer
- Apache Flink 2.1Upgrade planner →Supported· 1 major version newer
Latest release
Previous releases
1.9.2
24 Jan 2020
1.9.1
30 Sept 2019
1.9.0
19 Aug 2019
Release history
4 concrete releases tracked for this line.
Release activity
- Total releases
- 4
- Last 30 days
- 0
- Last 90 days
- 0
- Avg. interval
- ~81 days
- Most recent
- 17 Apr 2020
Should I use this version?
Suitable for new deployments
Apache Flink 1.9 is currently supported (standard support).
Version comparison
Compact comparison against the nearest relevant release lines.
Sources
Where this information comes from.
Lifecycle sources
- Apache Flink Downloadsfirst party · high confidence
Official source: https://flink.apache.org/downloads/
Last verified 2 Sept 2026
- Apache Flink Java Compatibilityfirst party
Official source: https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/java_compatibility/
Verification time not recorded
- OSV.devfirst party
Official source: https://osv.dev
Verification time not recorded
- NVD (NIST)first party
Official source: https://nvd.nist.gov
Verification time not recorded
- CISA Known Exploited Vulnerabilitiesfirst party
Official source: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Verification time not recorded
Release sources
- Apache Flink Downloadsfirst party · high confidence
Official source: https://flink.apache.org/downloads/
Last verified 2 Sept 2026
- Apache Flink GitHub Tagsfirst party
Official source: https://github.com/apache/flink/tags
Verification time not recorded
Data coverage
Last checked = last successful upstream check. Latest source update = when upstream content last changed.
- Releases tracked
- 4
- Lifecycle periods
- 1
- EOL
- Not officially published
- Provenance records
- 2
- Data last checked
- 2 Sept 2026
- Latest source update
- 2 Sept 2026
EOL: Not officially published