Whenever my internet disconnects even slightly, My bot throws an exception and the last thing in log is unable to resolve hostname {gateway_url}. I'm curious to whether or not we could allow the library to continue to try to connect to the gateway, discord.NET also has this issue.

It may be due to it trying to validate the cert discord sends. Currently the error it gets is:
Unable to connect to gateway.discord.gg on port 443, error: error in handshake : X509 - Certificate verification failed, e.g. CRL, CA or signature check failed
Find a way to disable validiation in mbedX509

• Gateway Intents are now required (#41)
• All permissions have been converted to strings-serialized numbers. As such, permissions_new, allow_new, and deny_new have been removed
• The game field has been removed. If you need a direct replacement, you can instead reference the first element of activities
• Channel Permission Overwrite types are now numbers (0 and 1) instead of strings ("role" and "member"). However due to a current technical constraint, they are string-serialized numbers in audit log options.
• embed_enabled and embed_channel_id have been removed. Use widget_enabled and widget_channel_id instead.
• The Retry-After header is now based in seconds instead of milliseconds (e.g. 123 means 123 seconds)
• The X-RateLimit-Precision header is no longer respected. X-RateLimit-Reset and X-RateLimit-Reset-After are always returned at millisecond precision (e.g. 123.456 instead of 124)
• Bots no longer receive Channel Create Gateway Event for DMs
• delete-message-days is no longer available. Use delete_message_days.
• Removed roles, premium_since, and nick from Presence Update Gateway Event.
• Removed some integration object fields for Discord application integrations
• Removed include_applications from Get Guild Integrations. Application integrations are always included.

The following deprecated routes have been removed for better naming conventions:

• Removed in favor of /guilds/<guild_id>/widget:
  • /guilds/<guild_id>/embed
• Removed in favor of /guilds/<guild_id>/widget.json:
  • /servers/<guild_id>/embed.json
  • /servers/<guild_id>/widget.json
  • /guilds/<guild_id>/embed.json
• Removed in favor of /guilds/<guild_id>/widget.png:
  • /guilds/<guild_id>/embed.png
• Removed in favor of /channels/<channel_id>/messages/bulk-delete:
  • /channels/<channel_id>/messages/bulk_delete/
• Removed in favor of /invites/<code>/:
  • /invite/<code>/

I've seen it crash on two separate lines that don't help me at all. The comments will show you what lines.

void Bot::HandleHeartbeat() {
	while (true) {
		nlohmann::json data = { { "op", packet_opcode::heartbeat }, { "d", nullptr } };
		if (last_sequence_number != -1) {
			data["d"] = last_sequence_number;
		}

		logger.Log(LogSeverity::SEV_DEBUG, "Sending heartbeat payload: " + data.dump());
		websocket_outgoing_message msg;
		msg.set_utf8_message(data.dump());
		websocket_client.send(msg);

		heartbeat_acked = false; // Exception here

		logger.Log(LogSeverity::SEV_DEBUG, "Waiting for next heartbeat (" + std::to_string(hello_packet["d"]["heartbeat_interval"].get<int>() / 1000.0 - 10) + " seconds)...");
		// Wait for the required heartbeat interval, while waiting it should be acked from another thread.
		std::this_thread::sleep_for(std::chrono::milliseconds(hello_packet["d"]["heartbeat_interval"].get<int>() - 10));

		if (!heartbeat_acked) {
			logger.Log(LogSeverity::SEV_WARNING, LogTextColor::YELLOW + "Heartbeat wasn't acked, trying to reconnect...");
			disconnected = true;

			ReconnectToWebsocket();
		}
	} // Exception here
}

The method is inside of the source file bot file: https://github.com/SeanOMik/DiscordPP/blob/development/src/bot.cpp#L383