Exchange Server 2013 CU18 UM Language Packs

Microsoft released Exchange Server 2013 CU18 UM Language Packs, v15.00.1347.002
Download from here

Cumulative Update 18 for Exchange Server 2013

Microsoft released Exchange Server 2013 Cumulative Update 18, v15.00.1347.002
See description in KB4022631 and download from here

Exchange Server 2013 CU17 UM Language Packs

Microsoft released Exchange Server 2013 CU17 UM Language Packs, v15.00.1320.004
Download from here

Microsoft Skype for Business for IOS

Microsoft has released Microsoft Skype for Business for iOS, v6.17.2.5
Download from here

Microsoft Skype for Business for IOS

Microsoft has released Microsoft Skype for Business for iOS, v6.17.0.1
Download from here

Microsoft Lync 2013 / Skype for Business 2015: August 2017

Microsoft released Lync 2013 / Skype for Business 2015, v15.0.4953.1000
See description in KB4011046 and download from here x86 or x64

Microsoft Skype for Business for IOS

Microsoft has released Microsoft Skype for Business for iOS, v6.16.1.3
Download from here