[sr-dev] json request fails

I noticed that json rpc commands have started to fail, for example,

May 2 15:41:15 char /usr/bin/sip-proxy[10440]: INFO: Executing JSON request <{"jsonrpc":"2.0","method":"siptrace.status","params":["on"],"id":1}> from <127.0.0.1> with host <127.0.0.1:6060> May 2 15:41:15 char /usr/bin/sip-proxy[10440]: ERROR: <core> [core/parser/parse_from.c:53]: parse_from_header(): bad msg or missing FROM header May 2 15:41:15 char /usr/bin/sip-proxy[10440]: ERROR: siptrace [siptrace_send.c:55]: sip_trace_prepare(): cannot parse FROM header

Has something changed that I have missed? I didn't find anything related on the wiki upgrade page.

-- Juha