Not all major releases may be marked “ESR” during their lifecycle. For example, Rudder 2.4.0 was marked ESR in December 2012, and Rudder 2.5.0 released in January 2013, but no 2.5.* version was announced as an ESR. Major releases that are not marked ESR will be maintained for 3 months after the next major release.
See the status of past and current releases in the dedicated page.
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