Latest Slack 4 user agents:

User Agent Platform Device
Mozilla/5.0 (Macintosh; Intel Mac OS X 13_5_0) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.32.127 Chrome/112.0.5615.165 Electron/24.2.0 Safari/537.36 MacAppStore/22.6.0 AppleSilicon Sonic Slack_SSB/4.32.127 Mac 13 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 13_3_1) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.31.152 Chrome/110.0.5481.179 Electron/23.1.3 Safari/537.36 Sonic Slack_SSB/4.31.152 Mac 13 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_3_1) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.26.1 Chrome/100.0.4896.127 Electron/18.1.0 Safari/537.36 Sonic Slack_SSB/4.26.1 Mac 12 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_3_1) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.25.0 Chrome/98.0.4758.109 Electron/17.1.2 Safari/537.36 MacAppStore/21.4.0 Sonic Slack_SSB/4.25.0 Mac 12 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_2_1) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.27.154 Chrome/102.0.5005.63 Electron/19.0.3 Safari/537.36 AppleSilicon Sonic Slack_SSB/4.27.154 Mac 12 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_0_1) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.21.1 Chrome/94.0.4606.81 Electron/15.3.0 Safari/537.36 Sonic Slack_SSB/4.21.1 Mac 12 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 12_0_1) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.21.1 Chrome/94.0.4606.81 Electron/15.3.0 Safari/537.36 MacAppStore/21.1.0 AppleSilicon Sonic Slack_SSB/4.21.1 Mac 12 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_6_5) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.25.0 Chrome/98.0.4758.109 Electron/17.1.2 Safari/537.36 MacAppStore/20.6.0 Sonic Slack_SSB/4.25.0 Mac 11 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_6_0) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.22.1 Chrome/94.0.4606.81 Electron/15.3.0 Safari/537.36 MacAppStore/20.6.0 Sonic Slack_SSB/4.22.1 Mac 11 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_6_0) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.20.0 Chrome/93.0.4577.58 Electron/14.0.0 Safari/537.36 Sonic Slack_SSB/4.20.0 Mac 11 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_4_0) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.18.0 Chrome/91.0.4472.124 Electron/13.1.6 Safari/537.36 Sonic Slack_SSB/4.18.0 Mac 11 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_4_0) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.16.0 Chrome/89.0.4389.90 Electron/12.0.2 Safari/537.36 MacAppStore/20.5.0 Sonic Slack_SSB/4.16.0 Mac 11 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.4.1 Chrome/78.0.3904.130 Electron/7.1.14 Safari/537.36 Sonic Slack_SSB/4.4.1 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.39.90 Chrome/127.0.6533.72 Electron/13.1.9 Safari/537.36 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.24.1 Chrome/98.0.4758.109 Electron/17.1.1 Safari/537.36 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.23.0 Chrome/96.0.4664.55 Electron/16.0.4 Safari/537.36 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.22.0 Chrome/94.0.4606.81 Electron/15.3.0 Safari/537.36 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.21.1 Chrome/94.0.4606.81 Electron/15.3.0 Safari/537.36 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.21.0 Chrome/94.0.4606.81 Electron/15.2.0 Safari/537.36 Mac 10 Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Slack/4.16.2 Chrome/89.0.4389.90 Electron/12.0.2 Safari/537.36 Sonic Slack_SSB/4.16.2 Mac 10 Unknown