Well, it’s almost here. Asterisk 1.4 was released in December of 2006, and was later deemed the first ‘Long Term Support’ release of Asterisk, when that policy was put in place. Nearly a year ago, when it was 4.5 years old, Asterisk 1.4 entered the ‘Security Fix Only’ support mode, which means that we began actively encouraging people to base new installations on Asterisk 1.8 (the next Long Term Support release). At the same time, the End-Of-Life (EOL) date for Asterisk 1.4 (and Asterisk 1.6.2) was announced.
Now, as we approach April of 2012, those EOL dates are just around the corner. As of April 21, 2012, there will be no more releases made of Asterisk 1.4 or Asterisk 1.6.2, even if security vulnerabilities are identified. If you are using systems based on either of these release branches of Asterisk, you should consider moving to a supported release as soon as you can practically do so.
We hope that this change won’t cause you any undue anxiety or inconvenience. However, should you be concerned, note that this change will occur only one day after 4/20, so feel free to relieve your anxiety in advance, if you wish!