Nearly at the same time Method R Trace 18.104.22.168 extension for SQL Developer was released as well. Especially for developers that's a very important news - at least if they concern about performance.
A new Version of this extension is needed as SQL Developer changed it's extension framework at the upgrade from version 3 to 4. So I'm very glad Method R took the effort to upgrade Method R Trace. Because of this upgrade, the feature of the current release is limited, as they described in the announcement.
I follow their argumentation it's better to release Method R Trace with feature 1 right now and not wait some more months until feature 1 and 2 are released.
But this decision leads to some consequences: Feature 1 and 2 need different objects installed in the database. And as with version 22.214.171.124 only feature 1 is released, all the objects for feature 2 (it's called level two feature set object in the 126.96.36.199 installation script) is not released. As I did not find the old extension anymore available at Method R website, I just can advise to preserve a copy in case you need some of the level two feature set objects for any purpose.
One more little thing in case you use Method R Trace 188.8.131.52 on a RAC: in the installation script replace
open c_gvparameter for 'select i.inst_id, v.value from gv$instance i, v$diag_info v where v.name = ''Diag Trace''';with
open c_gvparameter for 'select i.inst_id, v.value from gv$instance i, gv$diag_info v where i.inst_id = v.inst_id and v.name = ''Diag Trace''';
to ensure you can access the local tracefiles on all instances.