Network Module IDS ona 3845 router. The build is 6.0(5)E3. Up until last week, Cisco has been putting out signatures for the E3. The last one I've seen is the IPS-sig-S479-req-E3.pkg. I've noticed that over the last week they issued IPS-sig-S481-req-E4.pkg and IPS-sig-S481-req-E4.pkg.
Has Cisco ceased updating/supporting E3? If so, what are my options if I am forced to keep the same hardware? As I understand it, the highest build that a 3845 NM module will support is 6.0(5)E3. If this is incorrect, please let me know.
Thanks in advance.