We just published new patch release for version 4.0 - 4.0.2227. Changes since release 4.0.2157 (some were already included into 4.0.2200):

• NXSL hook script for user login
• SSH subagent metric SSH.Command returns collection error instead of "unsupported metric" if host name cannot be resolved
• Fixed bugs in IP topology map builder
• Added action to open object detalis form Business Service checks
• Alarms for unknown nodes are not included in summary e-mails
• Fixed bug with threshold recreation on any DCI change
• Fixed issues:
          NX-2214 (Agent does not report network interface speed)
          NX-2227 (Typo in message for event SYS_DUPLICATE_MAC_ADDRESS)
          NX-2235 (Object Query CSV export does not prompt to overwrite .csv file)
          NX-2236 (Option of copying of data from an Object Query in Dashboard view)

Best regards,
Victor