Due to both time and resource constrains the Highlight.js core team only fully supports the most current major version of the library. The prior major release will only receive critical security updates (when feasible).
| Version | Status | EOL |
|---|---|---|
| 10.x | Current. Regular updates; bug fixes & new features. | n/a |
| 9.18.x | Deprecated. Security updates only. See VERSION_10_UPGRADE.md. | TBD |
| < 9.17.x | Obsolete. | Jan 2020 |
| 8.x | Obsolete. | |
| 7.x | Obsolete. | |
| Older | Obsolete. |
Support for IE11 is really the only reason anyone should still prefer version 9. It's recommended that everyone else upgrade.