|Release Series||Support Type||Release Frequency|
|Asterisk 18||LTS||6-8 Weeks|
|Certified Asterisk 16||LTS||2-4 times per year|
|Asterisk 16||LTS||6 - 8 Weeks|
|Asterisk 17||Security Fixes Only||As Needed|
|Asterisk 13||Security Fixes Only||As Needed|
Test Releases are previews of the next versions of Asterisk. Each is in an alpha, beta, or a release candidate phase. Users who need to run the latest release for a bugfix are encouraged to test the test releases in their environments and provide feedback to the issue tracker.