Latest Facebook Messenger 225 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; VOG-L29 Build/HUAWEIVOG-L29; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 9 P30 Pro
Mozilla/5.0 (Linux; Android 9; SM-A105F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/75.0.3770.143 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 9 Galaxy A10
Mozilla/5.0 (Linux; Android 8.1.0; Nexus 5X Build/OPM7.181205.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/76.0.3809.89 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 8 Nexus 5X
Mozilla/5.0 (Linux; Android 8.0.0; FIG-LX1 Build/HUAWEIFIG-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/81.0.4044.117 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 8 P smart
Mozilla/5.0 (Linux; Android 7.1.1; CPH1717 Build/N4F26M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 7 A71
Mozilla/5.0 (Linux; Android 7.0; SM-G930F Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 7 Galaxy S7
Mozilla/5.0 (Linux; Android 5.1.1; SM-J500H Build/LMY48B; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/43.0.2357.121 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 5 Galaxy J5 (2015)
Mozilla/5.0 (Linux; Android 5.1.1; SM-J320FN Build/LMY47V; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 5 Galaxy J3 (2016)
Mozilla/5.0 (Linux; Android 4.4.4; SM-J100H Build/KTU84P) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/33.0.0.0 Mobile Safari/537.36 [FB_IAB/Orca-Android;FBAV/225.0.0.13.113;] Android 4 Galaxy J1