# Proxmark3 v4.16191 Released

> The Nitride release adds an lf indala brute command, faster magic Gen4 GTU handling, new hf mf gload/gsave commands, and a SIM module firmware update.

_2023-01-29_

This is the v4.16191 "Nitride" release of the Iceman fork of the Proxmark3 firmware and client. Constructed from the commits since v4.15864, it brings new low-frequency brute forcing, much faster magic Gen4 card operations, smartcard module firmware updates, and many fixes.

## Highlights
- Added an `lf indala brute` command (modeled on `lf hid brute`) that steps up and down through card numbers, and extended `lf indala sim` to accept a facility code and card number.
- Rewrote and sped up the magic Gen4 GTU commands: a select-once flag roughly doubles the speed of `hf mf gview` and `hf mf gload` (for example `gview --4k` drops from about 20 seconds to about 7 seconds), plus new `hf mf gload`, `ggetblk`, `gsetblk` and `gsave` commands.
- Improved `hf mf dump` to try key B when key A is unknown but ACLs allow key B reads, and to zero out unknown keys in the dumped file to mark them as not recovered.
- Added Magic Gen4 GTU detection and protocol symbols, and made autopwn and hardnested detect Mifare Classic EV1 cards and use the known sector key in key-recovery vectors.
- Updated the smartcard SIM module firmware to v4.13 (a breaking change for `smart` commands) with adjusted timings and added init stability waits.
- Added new Ultralight/NTAG tooling: `hf mfu esave`, an NTAG216 DT NeXT/xNT implant script, and an NTAG I2C PLUS 2K sector utility script.
- Fixed an SPI memory overflow when writing oversized key dictionaries by enforcing the layout boundaries (now also reported by `hw status`) and added one more flash sector for Mifare keys.
- Fixed a stack-based buffer overflow in `lf em 4x05 sniff`, fixed `trace list -r` relative times, and improved NXP SLI/SLIX tag identification.

## Contributors
This release landed thanks to [@iceman1001](https://github.com/iceman1001), [@doegox](https://github.com/doegox), [@jmichelp](https://github.com/jmichelp), [@DidierA](https://github.com/DidierA), [@colonelborkmundus](https://github.com/colonelborkmundus), [@Alejandro12120](https://github.com/Alejandro12120), [@mhjack](https://github.com/mhjack), [@wh201906](https://github.com/wh201906), [@nvx](https://github.com/nvx), [@nitraiolo](https://github.com/nitraiolo) and others.

Read the [full changelog and downloads on GitHub](https://github.com/RfidResearchGroup/proxmark3/releases/tag/v4.16191).