I’ve also got an error since last update. I think Im gonna try reverting to previous version.
App threw an error during load
A JavaScript error occurred in the main process
Uncaught Exception:
TypeError: arg.includes is not a function
at parseCommandLine (/usr/lib/mailspring/app.asar/src/browser/main.js:167:13)
at start (/usr/lib/mailspring/app.asar/src/browser/main.js:294:19)
at Object.<anonymous> (/usr/lib/mailspring/app.asar/src/browser/main.js:382:1)
at Module._compile (node:internal/modules/cjs/loader:1738:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1904:10)
at Module.load (node:internal/modules/cjs/loader:1472:32)
at Module._load (node:internal/modules/cjs/loader:1289:12)
at c._load (node:electron/js2c/node_init:2:18013)
at TracingChannel.traceSync (node:diagnostics_channel:322:14)
at wrapModuleLoad (node:internal/modules/cjs/loader:242:24
.
Edit:
I was able to fix my error, details here.