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Long term support (LTS)
HHVM releases and maintains stable releases every 8 weeks. The current stable release receives security fixes and other minor bugfixes in occasional point releases. Once a new stable release is out, the previous stable release will stop receiving updates, unless it was a long-term support (LTS) release. Every 3 stable releases (every 24 weeks) is an LTS release. There will be two LTS releases at a time, with a newer LTS release superseding the oldest one, i.e., LTS releases will be supported for 48 weeks.
Read our announcement post for more background and details.
See also our full release schedule.
| LTS Version | Release Date | End of Support |
|---|---|---|
| 3.3 | 19 Sep 2014 | 13 Aug 2015 |
| 3.6 | 11 March 2015 | 28 Jan 2016 |
| 3.9 | 14 Aug 2015 | 15 July 2016 |
The normal installation instructions will get you all stable releases of HHVM. To stick with a particular LTS release, append -lts- and then the LTS version to the distribution in the deb line. For example, the following deb line in /etc/apt/sources.list will get all stable updates on Ubuntu 14.04 "trusty":
deb http://dl.hhvm.com/ubuntu trusty main
In order to get only LTS updates in the 3.3 series, change that to:
deb http://dl.hhvm.com/ubuntu trusty-lts-3.3 main
Keep in mind that these extra "distributions" will only exist for LTS releases; other stable releases are immediately superseded by the next stable release.