Major and Breaking Changes

## Major Changes - Version 5

#### New Functions

- audio() detailed audio information
- bluetoothDevices() detailed information detected bluetooth devices
- printers() detailed printer information
- usb() detailed USB information
- wifiInterfaces() detected Wi-Fi interfaces
- wifiConnections() active Wi-Fi connections

#### Breaking Changes

Be aware, that the new version 5.x is NOT fully backward compatible to version 4.x ...

We had to make several interface changes to keep systeminformation as consistent as possible. We highly recommend to go through the complete list and adapt your own code to be again compatible to the new version 5:

Function | Old | New (V5) | Comments
--- | --- | --- | ---
unsupported values | -1 | null | values which are unknown or unsupported on platform
battery() | hasbattery cyclecount ischarging designedcapacity maxcapacity acconnected timeremaining | hasBattery cycleCount isCharging designedCapacity maxCapacity acConnected timeRemaining | pascalCase conformity
blockDevices() | fstype | fsType | pascalCase conformity
cpu() | speedmin speedmax | speedMin speedMax | pascalCase conformity
cpu().speed cpu().speedMin cpu().speedMax | string values | now returning numerical values | better value handling
cpuCurrentspeed() |  | cpuCurrentSpeed() | function name changed pascalCase conformity
currentLoad() | avgload currentload currentload_user currentload_system currentload_nice currentload_idle currentload_irq raw_currentload | avgLoad currentLoad currentLoadUser currentLoadSystem currentLoadNice currentLoadIdle currentLoadIrq rawCurrentLoad | pascalCase conformity
dockerContainerStats() | mem_usage mem_limit mem_percent cpu_percent cpu_stats precpu_stats memory_stats | memUsage memLimit memPercent cpuPercent cpuStats precpuStats memoryStats | pascalCase conformity
dockerContainerProcesses() | pid_host | pidHost | pascalCase conformity
graphics().display | pixeldepth resolutionx resolutiony sizex sizey | pixelDepth resolutionX resolutionY sizeX sizeY | pascalCase conformity
networkConnections() | localaddress localport peeraddress peerport | localAddress localPort peerAddress peerPort | pascalCase conformity
networkInterfaces() | carrier_changes | carrierChanges | pascalCase conformity
processes() | mem_vsz mem_rss pcpu pcpuu pcpus pmem | memVsz memRss cpu cpuu cpus mem | pascalCase conformity renamed attributes
processLoad() | result as object | result as array of objects | function now allows to provide more than one process (as a comma separated list)
services() | pcpu pmem | cpu mem | renamed attributes
vbox() | HPET PAE APIC X2APIC ACPI IOAPIC biosAPICmode TRC | hpet pae apic x2Apic acpi ioApic biosApicMode rtc | pascalCase conformity

I know, these are a lot of changes, but for the sake of a consistent interface and to be future proof, we think that this was necessary. Thank you for your understanding.

#### Other Improvements and Changes

- baseboard(): added memMax, memSlots
- bios(): added language and features (linux)
- cpu(): extended AMD processor list
- cpu(): extended socket list (win)
- cpu(): added virtualization if cpu supports virtualization
- cpu(): now flags are part of this function
- cpuTemperature(): added socket and chipset temperature (linux)
- disksIO(): added waitTime, waitPercent (linux)
- fsSize(): added available
- fsSize(): improved calculation of used
- getData(): support for passing parameters and filters (see section General / getData)
- graphics(): extended properties macOS
- graphics(): extended nvidia-smi parsing
- networkInterfaces(): type detection improved (win - wireless)
- memLayout(): extended manufacturer list (decoding)
- memLayout(): added ECC flag
- osInfo(): better fqdn (win)
- osinfo(): added hypervizor if hyper-v is enabled (win only)
- system(): better Raspberry PI detection
- system(): added virtual and virtualHost (if system is virtual instance)
- uuid(): better value support
- uuid(): added MACs
- uuid(): better Raspberry Pi hardware ID
- versions(): added bash, zsh, fish, powershell, dotnet
- Apple M1 Silicon extended support
- updated TypeScript definitions

#### Test Full Version 5 Functionality

If you want to see all function results on your machine, please head over to Testing section. We implemented a tiny test suite where you can easily go through all functions and test resuls on your machine without coding.

## Major Changes - Version 4

#### New Functions

- chassis() chassis information
- vboxInfo() detailed virtualBox VM information
- wifiNetworks() detailed information about available wifi networks

#### Breaking Changes

- networkStats(): will provide an array of stats for all given interfaces. In previous versions only one interface was provided as a parameter. Pass '*' for all interfaces
- networkStats(): rx and tx changed to rx_bytes and tx_bytes
- dockerContainerStats() will provide an array of stats for all given docker containers. In previous versions only one interface was provided as a parameter. Pass '*' for all docker containers

#### Other Changes

- system(): optimized system detection (e.g. new Raspberry Pi models, ...)
- system(), bios(), baseboard(): information also as non-root (linux)
- graphics(): added pip, pip3, virtualBox,
- versions(): better controller and display detection, fixes
- networkInterfaces(): optimization, fixes
- networkStats() added operstate, type, duplex, mtu, speed, carrierChanges
- added TypeScript definitions

Be aware, that the new version 4.x is NOT fully backward compatible to version 3.x ...

## Major Changes - Version 3

- works only with node.js v4.0.0 and above (using now internal ES6 promise function, arrow functions, ...)
- Promises. As you can see in the documentation, you can now also use it in a promise oriented way. But callbacks are still supported.
- Async/Await. Due to the promises support, systeminformation also works perfectly with the `async/await` pattern (available in node.js v7.6.0 and above). See example in the docs.

## Full Version History

Full version histrory (every single release version from version 1.x.x to 5.x.x) can be viewed here