Preparing release 2.9.0 (jaegertracing#180)

Preparing release 2.8.0

Preparing release 2.7.0 (jaegertracing#164)

Preparing release 2.6.0 (jaegertracing#132)

Preparing release 2.5.0 (jaegertracing#127)

Preparing release 2.4.0 (jaegertracing#122)

Preparing release 2.3.0 (jaegertracing#120)

Preparing for release 2.2.1 (jaegertracing#113)

Preparing for release 2.2.0 (jaegertracing#110)

Preparing for release 2.1.2 (jaegertracing#107)