Here are some of the most recent older versions of Nexus Client:

64-Bit

17.6.1.1018NexusSetup64.exe

17.6.0.724NexusSetup64.exe

16.0.70.407NexusSetup64.exe

15.5.20.115NexusSetup64.msi

15.5.1.1118NexusSetup64.msi

15.5.0NexusSetup64.msi

15.1.0NexusSetup64.msi

14.1.0.1209NexusSetup64.msi

14.0.2.1119NexusSetup64.msi

14.0.0.1111NexusSetup64.msi

13.1.43.1116NexusSetup64.msi

13.1.41.1114NexusSetup64.msi

13.1.39.1112NexusSetup64.msi

12.2.2.513NexusSetup64.msi

11.1.1.517NexusSetup64.msi

11.1.0.508NexusSetup64.msi

11.0.1.228NexusSetup64.msi

10.0.0.1117NexusSetup64.msi

---

Wow64

15.5.20.115NexusSetupWow64.msi

15.5.1.1118NexusSetupWow64.msi

15.5.0NexusSetupWow64.msi

15.1.0NexusSetupWow64.msi

14.1.0.1209NexusSetupWow64.msi

14.0.2.1119NexusSetupWow64.msi

13.1.43.1116NexusSetupWow64.msi 

13.1.41.1114NexusSetupWow64.msi

13.1.39.1112NexusSetupWow64.msi

12.2.2.513NexusSetupWow64.msi

11.1.1.517NexusSetupWow64.msi

11.1.0.508NexusSetupWow64.msi

11.0.1.228NexusSetupWow64.msi  

10.0.0.1117NexusSetupWow64.msi

---

32-Bit

13.1.43.1116NexusSetup32.msi

13.1.41.1114NexusSetup32.msi

13.1.39.1112NexusSetup32.msi

12.2.2.513NexusSetup32.msi

11.1.1.517NexusSetup32.msi

11.1.0.508NexusSetup32.msi

11.0.1.228NexusSetup32.msi

10.0.0.1117NexusSetup32.msi

---

Here are some of the most recent older versions of Nexus Server:

64-Bit

5.6.0.724NexusServerSetup64.exe

3.5.20.115NexusServerSetup64.msi

3.5.20.115NexusServerSetup64.msi

3.5.0NexusCoreSetup64.msi

3.1.0NexusCoreSetup64.msi

2.1.0.1209NexusCoreSetup64.msi

1.6.0.1114NexusCoreSetup64.msi

1.5.0.1112NexusCoreSetup64.msi