The wifi card in my new Lenovo Thinkpad T470s is not supported.
A quick test with a kernel from Kernel:stable (4.11.3-6.g3a35823-default) shows
that the driver was added after kernel 4.4, because 4.11.3 works fine.

The exact type of card is:
# hwinfo --netcard
10: PCI 3a00.0: 0282 WLAN controller                            
  [Created at pci.378]
  Unique ID: y9sn.DVcPkv35sTA
  Parent ID: hoOk.olPSGAJs4W4
  SysFS ID: /devices/pci0000:00/0000:00:1c.2/0000:3a:00.0
  SysFS BusID: 0000:3a:00.0
  Hardware Class: network
  Model: "Intel WLAN controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x24fd 
  SubVendor: pci 0x8086 "Intel Corporation"
  SubDevice: pci 0x1010 
  Revision: 0x78
  Driver: "iwlwifi"
  Driver Modules: "iwlwifi"
  Device File: wlan0
  Features: WLAN
  Memory Range: 0xec100000-0xec101fff (rw,non-prefetchable)
  IRQ: 130 (50500 events)
  HW Address: ...
  Permanent HW Address: ...
  Link detected: yes
  WLAN channels: ...
  WLAN frequencies: ...
  WLAN encryption modes: WEP40 WEP104 TKIP CCMP
  WLAN authentication modes: open sharedkey wpa-psk wpa-eap
  Module Alias: "pci:v00008086d000024FDsv00008086sd00001010bc02sc80i00"
  Driver Info #0:
    Driver Status: iwlwifi is active
    Driver Activation Cmd: "modprobe iwlwifi"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #17 (PCI bridge)
  [...]

lspci shows it as:
# lspci -vn
00:00.0 0600: 8086:5904 (rev 02)
    Subsystem: 17aa:224b
    Flags: bus master, fast devsel, latency 0
    Capabilities: [e0] Vendor Specific Information: Len=10 <?>
[...]
3a:00.0 0280: 8086:24fd (rev 78)
    Subsystem: 8086:1010
    Flags: bus master, fast devsel, latency 0, IRQ 130
    Memory at ec100000 (64-bit, non-prefetchable) [size=8K]
    Capabilities: [c8] Power Management version 3
    Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [40] Express Endpoint, MSI 00
    Capabilities: [100] Advanced Error Reporting
    Capabilities: [140] Device Serial Number 00-28-f8-ff-ff-3d-5d-d3
    Capabilities: [14c] Latency Tolerance Reporting
    Capabilities: [154] L1 PM Substates
    Kernel driver in use: iwlwifi
    Kernel modules: iwlwifi
[...]

It would be great if the driver could be backported, so that this also works in
the future Leap 42.3 version.