Note: If you downloaded it on or before June 16th, get the patch , which fixes the changing level bug that some people experienced.
Please download the of Darkplaces to run Conquest in. I don't vouch for any other versions, or for any other engines for that matter.

(though I am trying to maintain compatibility)
New weapons
Strong Machinegun
High-Capacity MG
Rapid Machinegun
Heavy Machinegun
Blaster
Scattergun
New Shields
Limit Armor (unique from Limit Shields)
Blink Shield Plus
Revenge Shield
New Enemies
Security Drones
Avenger Drones
Defense Mech
Other Highlights
Health bars and damage displays
Fixed the opening & closing doors bug
Weapon Menu (hold shift to pause the game and view a list of weapons, and select one at your leisure)
Shops in town now cost less than the shops on the field
Various monster, weapon & shield tweaks
Various bug fixes
Updated the readme
Conquest should now be Linux-compatible (maybe even compatible with macs, if OSX can run DP. That would be cool.)
I'm really interested in everyone's feedback, so please let me know what you think!