Ubuntu Canonical Operating system Release Version Major Minor Patch End-of-life EOL Support End-of-support EOS Maintenance End-of-maintenance EOM Security Long-term support LTS Vulnerabilities Common vulnerabilities & exposures CVE Security product-release-end-of-life-overview.xml free-trial.xml 📅 Last update on 2025-08-08 What is Ubuntu?   The entire lifecycle of Ubuntu The following figure shows you the visualised product life cycle of Ubuntu. You can see all releases with the latest patch version, the long-term support characteristics (orange flag in the green circle, the periods for version provision, maintenance and support. Figure: Release, patch and end-of-life cycle of product Ubuntu (Canonical)   Releases of Ubuntu get a development codename (‘HirsuteHippo’) and are versioned by the year and month of delivery. LTS or ‘Long Term Support’ releases are published every two years in April. LTS releases are the ‘enterprise grade’ releases of Ubuntu and are used the most. An estimated 95% of all Ubuntu installations are LTS releases. Every six months between LTS versions, Canonical publishes an interim release of Ubuntu, with 21.04 being the latest example. These are production-quality releases and are supported for 9 months, with sufficient time provided for users to update, but these releases do not receive the long-term commitment of LTS releases. Product Ubuntu Vendor Canonical Latest version 25.04 Number of releases 23 Number of versions 56 Number of unstable versions 1 Number of versions affected by CVE 48 Licence Creative Commons CC-BY-SA 3.0 UK Licence details https://ubuntu.com/legal/intellectual-property-policy Product site Release info Version command Wikipedia https://en.wikipedia.org/wiki/Ubuntu