Hi, Im looking at using SRE4 on NPE-G2, doubting 15.x is ready for real use yet, and 12.0S being EOL and doesnt support v6 :( box will be doing ospf, bgp (both v4 and v6), nothing too fancy SRE4 was released dec2011 Anyone can share if: - SRE5 due anytime soon ? - there is any compelling reason to go with 15.x instead of SRE Thanks, anton