Chromium 53.0.2775.0 (Dev + Sync) & Newer

Chromium 64-bit 53.0.2775.0 Dev  (NB! This icon rotates if You put the pointer over it.)

Sync • WebRTC • Widevine • 53.0.2775.0 (400924) • Tuesday, 21 Jun 2016 
Installer: https://github.com/henrypp/chromium/releases/download/v53.0.2775.0-r400924-win64/chromium-sync.exe
Installer:
MD5 Checksum:   840D97AF842924ED81BD01186E358C0E

Portable paf installers:

Online: 

File: ChromiumPortable64 53.0.2775.0 online.paf.exe
Size: 1.54 MB

Offline:

Updated: Latest Stable version installers are here

Sync • WebRTC • Widevine • 51.0.2704.106 (723) • Friday, 24 Jun 2016