bring jabberd2 up to 2.2.9. From the changelog:

What changed:
- Implemented component clustering
- Many virtual hosts in one SM process
- FreeBSD kqueue support
- Implemented PBX integration interface
- crypt() password support for LDAP backend

There is new <local/> section in sm.xml. You may use it to configure
domains serviced by the SM process. Old style domain name in <id/>
section still works for backward compatibility, but the <local/>
section overrides it.  You need to give different <id/> names to
SM instances participating in clustering. Router needs a way to
differenciate these.

There is new <pbx/> section in c2s.xml configuration file. Please
see it if you want to use the PBX integration.

Packaging changes:
    added PKG_OPTIONS_GROUP.mio to control the choice of I/O modules.
    Defaulting to mio-select and mio-poll, which are known to work  with
    NetBSD > 4.0.

(schnoebe)