# Unleashed Firmware unlshd-091
- Product: Unleashed Firmware (https://whatsnew.fyi/product/unleashed-firmware)
- Vendor: DarkFlippers
- Date: 2026-08-15
- Version: unlshd-091
- Original notes: https://github.com/DarkFlippers/unleashed-firmware/releases/tag/unlshd-091
- Permalink: https://whatsnew.fyi/product/unleashed-firmware/releases/unlshd-091
What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.
Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.
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- **changed** — Current API updated to 88.3
- **fixed** — SubGHz: Fix decoding RAW files
- **added** — NFC: Native MIFARE Ultralight AES (MF0AES20) support
- **added** — NFC: Create a blank MIFARE Ultralight AES card from Add Manually
- **added** — NFC: Create a blank MIFARE Ultralight C card from Add Manually
- **fixed** — NFC: Fix reading an EMV card with malformed TLV lengths crashing or overflowing buffers
- **fixed** — NFC: Fix a crafted EMV .nfc file corrupting the heap on load
- **fixed** — NFC: Fix Unlock with Dictionary destroying a saved MIFARE Classic dump
- **fixed** — NFC: Fix Update from Initial Card dropping sectors from a MIFARE Classic dump
- **fixed** — NFC, LF RFID, iButton: Renaming a saved file no longer deletes it before the replacement is written
- **fixed** — NFC: Fix cards whose 4-byte UID starts with 0x88 failing to read
- **fixed** — NFC: Harden ISO14443-3A anticollision against an unbounded UID cascade
- **fixed** — RPC: Fix crash when starting an app over RPC
- **added** — Lib: Music worker pause/resume
- **fixed** — HID: Fix HID limits to support international keyboards and add JP keyboard layout
- **changed** — JS Runner moved out of the firmware into an external app to free up internal flash
- **added** — HID: Mouse Jiggler Stealth now shows which buttons change the intervals
##### Main changes
- Current API: 88.3
- SubGHz: **Fix decoding RAW files** (by @xMasterX)
- NFC: **Native MIFARE Ultralight AES (MF0AES20) support** (by @mishamyte | PR #1058 | Closes #1057)
- NFC: **Create a blank MIFARE Ultralight AES card from "Add Manually"** (by @mishamyte | PR #1070 | Closes #1069)
- NFC: **Create a blank MIFARE Ultralight C card from "Add Manually"** (by @mishamyte | PR #1072 | Closes #1071)
- NFC: **Fix reading an EMV card with malformed TLV lengths crashing or overflowing buffers** (by @Endika | PR #1048)
- NFC: **Fix a crafted EMV `.nfc` file corrupting the heap on load** (by @mishamyte | PR #1056 | Fixes #1055)
- NFC: **Fix "Unlock with Dictionary" destroying a saved MIFARE Classic dump** (by @mishamyte | PR #1066 | Fixes #1063)
- NFC: **Fix "Update from Initial Card" dropping sectors from a MIFARE Classic dump** (by @mishamyte | PR #1066 | Fixes #1064)
- NFC, LF RFID, iButton: **Renaming a saved file no longer deletes it before the replacement is written** (by @mishamyte | PR #1067 | Fixes #1065)
- NFC: **Fix cards whose 4-byte UID starts with 0x88 failing to read** (by @mishamyte | PR #1075 | Fixes #1074)
- NFC: **Harden ISO14443-3A anticollision against an unbounded UID cascade** (by @mishamyte | PR #1078 | Fixes #1077)
- RPC: **Fix crash when starting an app over RPC** (by @apfxtech | PR #1076)
- Apps: Build tag (**15aug2026**) - **Check out more Apps updates and fixes by following** [this link](https://github.com/xMasterX/all-the-plugins/commits/dev)
##### Other changes
- Lib: **Music worker pause/resume** (by @xMasterX)
- OFW PR 4361: fix HID limits to support international keyboards and add JP keyboard layout (by @d3npa)
- OFW: CCID: move the debug app out of the firmware repository
- JS: **JS Runner moved out of the firmware into an external app** (`apps/assets/js_app.fap`) to free up internal flash; the `js` CLI command is now a CLI plugin and the JS examples ship with the extra resources
- Docs: **How to build FAPs on Android with Termux** (by @CamsShaft | PR #1060 | Closes #1028)
- HID: **Mouse Jiggler Stealth now shows which buttons change the intervals** (by @sequesters | PR #1020)
----
[-> How to install firmware](https://github.com/DarkFlippers/unleashed-firmware/blob/dev/documentation/HowToInstall.md)
[-> Unleashed FW Web Installer](https://web.unleashedflip.com)
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