We don’t normally announce DPMA releases on here but 3.5.5 was just released which resolves a compatibility issue between the latest versions of Asterisk (using PJSIP 2.10) and DPMA. For TCP or TLS traffic it was possible for a crash to occur. It’s recommended to update to 3.5.5. Installs which select DPMA in “make menuselect” will automatically get the latest version or the tarballs can be downloaded from the downloads site[1].
[1] http://downloads.digium.com/pub/telephony/res_digium_phone/