You wont get anything in "current" if you dont use real data. Remember this...
the picture (and flow) you posted uses fake data - and that fake data has 2 entries, both with version older than "10.0.0"
so if you ...
- expand the
current(as in array of devices with current firmware) it is empty. - expand the
old(as in array of devices with old firmware) it has 2 entries.
in simple terms - it does work.
Did you put the code in the function exactly as I wrote it?
Here is my copy (of your copy of my old flow) - it works for me on V2.x of node-red ...
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msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":1390,"y":620,"wires":[["54df8002de28aa60"]]},{"id":"9de9faa568f00746","type":"join","z":"6aa5969e588704c1","name":"","mode":"custom","build":"object","property":"payload","propertyType":"msg","key":"topic","joiner":"\\n","joinerType":"str","accumulate":true,"timeout":"","count":"2","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":1050,"y":620,"wires":[["cb08d719c8e52625"]]},{"id":"54df8002de28aa60","type":"debug","z":"6aa5969e588704c1","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":1430,"y":700,"wires":[]},{"id":"aee89e22179a36d1","type":"change","z":"6aa5969e588704c1","name":"","rules":[{"t":"set","p":"topic","pt":"msg","to":"availableVersion","tot":"str"},{"t":"set","p":"payload","pt":"msg","to":"payload[6]","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":920,"y":540,"wires":[["9de9faa568f00746","0a9fb2c70b626be9"]]},{"id":"e4c34c55784023c7","type":"change","z":"6aa5969e588704c1","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"payload.{ \"name\":**.Hostname, \"ipAddress\":**.IPAddress, \"version\":**.Version }","tot":"jsonata"},{"t":"set","p":"topic","pt":"msg","to":"deviceData","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":880,"y":700,"wires":[["9de9faa568f00746"]]},{"id":"9de27f4d50bd963b","type":"switch","z":"6aa5969e588704c1","name":"","property":"payload[0]","propertyType":"msg","rules":[{"t":"cont","v":"tasmota.bin","vt":"str"}],"checkall":"true","repair":false,"outputs":1,"x":770,"y":540,"wires":[["aee89e22179a36d1"]]},{"id":"0a9fb2c70b626be9","type":"debug","z":"6aa5969e588704c1","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":1050,"y":480,"wires":[]},{"id":"49198b2262aa2915","type":"join","z":"6aa5969e588704c1","name":"","mode":"custom","build":"array","property":"payload","propertyType":"msg","key":"","joiner":"\\n","joinerType":"str","accumulate":false,"timeout":"","count":"","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":670,"y":720,"wires":[["e4c34c55784023c7"]]},{"id":"ca899b140e01ab19","type":"html","z":"6aa5969e588704c1","name":"","property":"payload","outproperty":"payload","tag":"td","ret":"html","as":"single","x":650,"y":540,"wires":[["9de27f4d50bd963b"]]},{"id":"b10bbae077052636","type":"function","z":"6aa5969e588704c1","name":"fake device requests","func":"var fake_httprequests = {\n \"192.168.1.40\": {\"Status\":{\"Module\":1,\"DeviceName\":\"luz_prueba\",\"FriendlyName\":[\"luz_prueba\"],\"Topic\":\"luz_prueba\",\"ButtonTopic\":\"0\",\"Power\":0,\"PowerOnState\":3,\"LedState\":1,\"LedMask\":\"FFFF\",\"SaveData\":1,\"SaveState\":1,\"SwitchTopic\":\"0\",\"SwitchMode\":[0,0,0,0,0,0,0,0],\"ButtonRetain\":0,\"SwitchRetain\":0,\"SensorRetain\":0,\"PowerRetain\":0},\"StatusPRM\":{\"Baudrate\":115200,\"SerialConfig\":\"8N1\",\"GroupTopic\":\"tasmotas\",\"OtaUrl\":\"http://ota.tasmota.com/tasmota/release/tasmota.bin\",\"RestartReason\":\"Power On\",\"Uptime\":\"14T20:22:27\",\"StartupUTC\":\"2021-01-05T21:28:02\",\"Sleep\":50,\"CfgHolder\":4617,\"BootCount\":304,\"BCResetTime\":\"2020-06-12T04:30:48\",\"SaveCount\":3440,\"SaveAddress\":\"F9000\"},\"StatusFWR\":{\"Version\":\"9.2.0(tasmota)\",\"BuildDateTime\":\"2020-12-21T15:03:40\",\"Boot\":7,\"Core\":\"2_7_4_9\",\"SDK\":\"2.2.2-dev(38a443e)\",\"CpuFrequency\":80,\"Hardware\":\"ESP8285\",\"CR\":\"404/699\"},\"StatusLOG\":{\"SerialLog\":2,\"WebLog\":2,\"MqttLog\":0,\"SysLog\":0,\"LogHost\":\"\",\"LogPort\":514,\"SSId\":[\"BellVille2.4ghz\",\"\"],\"TelePeriod\":300,\"Resolution\":\"558180C0\",\"SetOption\":[\"002A8009\",\"2805C8000100060000005A00000000000000\",\"00000228\",\"00006000\",\"00000000\"]},\"StatusMEM\":{\"ProgramSize\":586,\"Free\":416,\"Heap\":23,\"ProgramFlashSize\":1024,\"FlashSize\":1024,\"FlashChipId\":\"144051\",\"FlashFrequency\":40,\"FlashMode\":3,\"Features\":[\"00000809\",\"8FDAC787\",\"04368001\",\"000000CF\",\"010013C0\",\"C000F981\",\"00004004\",\"00001000\"],\"Drivers\":\"1,2,3,4,5,6,7,8,9,10,12,16,18,19,20,21,22,24,26,27,29,30,35,37,45\",\"Sensors\":\"1,2,3,4,5,6\"},\"StatusNET\":{\"Hostname\":\"luz_prueba-6101\",\"IPAddress\":\"192.168.1.40\",\"Gateway\":\"192.168.1.1\",\"Subnetmask\":\"255.255.255.0\",\"DNSServer\":\"192.168.1.1\",\"Mac\":\"60:01:94:CA:37:D5\",\"Webserver\":2,\"WifiConfig\":4,\"WifiPower\":17},\"StatusMQT\":{\"MqttHost\":\"192.168.1.8\",\"MqttPort\":1883,\"MqttClientMask\":\"DVES_%06X\",\"MqttClient\":\"DVES_CA37D5\",\"MqttUser\":\"mosquitto\",\"MqttCount\":4,\"MAX_PACKET_SIZE\":1200,\"KEEPALIVE\":30},\"StatusTIM\":{\"UTC\":\"2021-01-20T17:50:29\",\"Local\":\"2021-01-20T18:50:29\",\"StartDST\":\"2021-03-28T02:00:00\",\"EndDST\":\"2021-10-31T03:00:00\",\"Timezone\":\"+01:00\",\"Sunrise\":\"08:34\",\"Sunset\":\"17:28\"},\"StatusSNS\":{\"Time\":\"2021-01-20T18:50:29\"},\"StatusSTS\":{\"Time\":\"2021-01-20T18:50:29\",\"Uptime\":\"14T20:22:27\",\"UptimeSec\":1282947,\"Heap\":23,\"SleepMode\":\"Dynamic\",\"Sleep\":50,\"LoadAvg\":19,\"MqttCount\":4,\"POWER\":\"OFF\",\"Wifi\":{\"AP\":1,\"SSId\":\"BellVille2.4ghz\",\"BSSId\":\"C8:D7:19:52:9D:27\",\"Channel\":10,\"RSSI\":100,\"Signal\":-40,\"LinkCount\":4,\"Downtime\":\"0T00:09:52\"}}},\n \"192.168.1.180\": {\"Status\":{\"Module\":1,\"DeviceName\":\"luz_escritorio_garaje\",\"FriendlyName\":[\"luz_escritorio_garaje\"],\"Topic\":\"luz_escritorio_garaje\",\"ButtonTopic\":\"0\",\"Power\":1,\"PowerOnState\":3,\"LedState\":1,\"LedMask\":\"FFFF\",\"SaveData\":1,\"SaveState\":1,\"SwitchTopic\":\"0\",\"SwitchMode\":[0,0,0,0,0,0,0,0],\"ButtonRetain\":0,\"SwitchRetain\":0,\"SensorRetain\":0,\"PowerRetain\":0},\"StatusPRM\":{\"Baudrate\":115200,\"SerialConfig\":\"8N1\",\"GroupTopic\":\"sonoffs\",\"OtaUrl\":\"http://thehackbox.org/tasmota/release/tasmota.bin\",\"RestartReason\":\"Software/System restart\",\"Uptime\":\"0T23:52:49\",\"StartupUTC\":\"2021-01-19T17:57:41\",\"Sleep\":50,\"CfgHolder\":4617,\"BootCount\":488,\"BCResetTime\":\"2020-04-15T00:57:39\",\"SaveCount\":6301,\"SaveAddress\":\"F7000\"},\"StatusFWR\":{\"Version\":\"8.5.0(tasmota)\",\"BuildDateTime\":\"2020-09-09T11:41:02\",\"Boot\":7,\"Core\":\"2_7_4_1\",\"SDK\":\"2.2.2-dev(38a443e)\",\"CpuFrequency\":80,\"Hardware\":\"ESP8285\",\"CR\":\"430/699\"},\"StatusLOG\":{\"SerialLog\":2,\"WebLog\":2,\"MqttLog\":0,\"SysLog\":0,\"LogHost\":\"\",\"LogPort\":514,\"SSId\":[\"BellVille2.4ghz\",\"\"],\"TelePeriod\":300,\"Resolution\":\"558180C0\",\"SetOption\":[\"002A8109\",\"2805C8000100060000005AFF000000000000\",\"00000200\",\"00006000\",\"00000000\"]},\"StatusMEM\":{\"ProgramSize\":595,\"Free\":408,\"Heap\":23,\"ProgramFlashSize\":1024,\"FlashSize\":1024,\"FlashChipId\":\"144051\",\"FlashFrequency\":40,\"FlashMode\":3,\"Features\":[\"00000809\",\"8FDAE797\",\"04368001\",\"000000CD\",\"010013C0\",\"C000F981\",\"00004004\",\"00000000\"],\"Drivers\":\"1,2,3,4,5,6,7,8,9,10,12,16,18,19,20,21,22,24,26,27,29,30,35,37\",\"Sensors\":\"1,2,3,4,5,6\"},\"StatusNET\":{\"Hostname\":\"luz_escritorio_garaje\",\"IPAddress\":\"192.168.1.180\",\"Gateway\":\"192.168.1.1\",\"Subnetmask\":\"255.255.255.0\",\"DNSServer\":\"192.168.1.1\",\"Mac\":\"DC:4F:22:F9:7D:69\",\"Webserver\":2,\"WifiConfig\":2,\"WifiPower\":17},\"StatusMQT\":{\"MqttHost\":\"192.168.1.8\",\"MqttPort\":1883,\"MqttClientMask\":\"DVES_%06X\",\"MqttClient\":\"DVES_F97D69\",\"MqttUser\":\"mosquitto\",\"MqttCount\":1,\"MAX_PACKET_SIZE\":1200,\"KEEPALIVE\":30},\"StatusTIM\":{\"UTC\":\"2021-01-20T17:50:30\",\"Local\":\"2021-01-20T18:50:30\",\"StartDST\":\"2021-03-28T02:00:00\",\"EndDST\":\"2021-10-31T03:00:00\",\"Timezone\":\"+01:00\",\"Sunrise\":\"08:34\",\"Sunset\":\"17:28\"},\"StatusSNS\":{\"Time\":\"2021-01-20T18:50:30\"},\"StatusSTS\":{\"Time\":\"2021-01-20T18:50:30\",\"Uptime\":\"0T23:52:49\",\"UptimeSec\":85969,\"Heap\":23,\"SleepMode\":\"Dynamic\",\"Sleep\":50,\"LoadAvg\":19,\"MqttCount\":1,\"POWER\":\"ON\",\"Wifi\":{\"AP\":1,\"SSId\":\"BellVille2.4ghz\",\"BSSId\":\"C8:D7:19:52:9D:27\",\"Channel\":10,\"RSSI\":94,\"Signal\":-53,\"LinkCount\":1,\"Downtime\":\"0T00:00:06\"}}},\n}\n\nmsg.payload = fake_httprequests[msg.ip]\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":488,"y":716,"wires":[["49198b2262aa2915"]]},{"id":"32ee64d6bec8b999","type":"function","z":"6aa5969e588704c1","name":"hosts","func":"const tasmotas = [\"192.168.1.40\",\"192.168.1.180\"]\nconst status= \"/cm?cmnd=Status%200\"\nfor(let x=0;x<tasmotas.length;x++){\n node.send({\n url:\"http://\"+tasmotas[x]+status,\n ip: tasmotas[x]\n })\n}\nmsg.complete = true;\nmsg.payload = null;\nreturn msg;\n","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":310,"y":716,"wires":[["b10bbae077052636"]]},{"id":"13ab16a9c60a6021","type":"http request","z":"6aa5969e588704c1","name":"","method":"GET","ret":"txt","paytoqs":"ignore","url":"http://ota.tasmota.com/tasmota/release/","tls":"","persist":false,"proxy":"","authType":"","senderr":false,"x":330,"y":540,"wires":[["be7ca6173afce7a4"]]},{"id":"883cf43c743cfaee","type":"inject","z":"6aa5969e588704c1","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":176,"y":716,"wires":[["32ee64d6bec8b999"]]},{"id":"20a42053f6c5e4c0","type":"inject","z":"6aa5969e588704c1","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":180,"y":540,"wires":[["13ab16a9c60a6021"]]},{"id":"0a0104963feb4127","type":"comment","z":"6aa5969e588704c1","name":"Check Tasmota Web Version","info":"","x":220,"y":480,"wires":[]},{"id":"8d8b1b21c0ca64af","type":"comment","z":"6aa5969e588704c1","name":"Check Sonoff versions","info":"","x":200,"y":660,"wires":[]},{"id":"be7ca6173afce7a4","type":"html","z":"6aa5969e588704c1","name":"","property":"payload","outproperty":"payload","tag":"tr","ret":"html","as":"multi","x":470,"y":540,"wires":[["ddfcdc4acd7d1a0e"]]},{"id":"ddfcdc4acd7d1a0e","type":"function","z":"6aa5969e588704c1","name":"wrap td","func":"msg.payload = `<table><tr>${msg.payload}</tr></table>`\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":560,"y":500,"wires":[["ca899b140e01ab19"]]}]
EDIT
Did you operate both inject buttons?
