This package updates the UEFI BIOS (including system program and Embedded Controller program) stored in the ThinkPad computer to fix problems, add new functions, or expand functions as noted below.

Use the link below to obtain the BIOS in other file formats:

BIOS Bootable CD

Summary of Changes

Where:

UEFI: UEFI BIOS version
ECP: Embedded Controller Program version
[Important] Important update
(New) New function or enhancement
(Fix) Correction to existing function

Version 1.46
UEFI: 1.46 / ECP: 1.24

[Important] Security fix addresses LEN-22133 Speculative Execution Side Channel Variants 4 and 3a (CVE-2018-3639, CVE-2018-3640). Refer to Lenovo's Security Advisory page for additional information.
(https://support.lenovo.com/product_security/home)

Additional Information

Please refer to the README file for the following:

Installation Instructions
Determining Which Version is Installed
Complete list of summary of changes
Known limitations (if any)

Package	UEFI BIOS	ECP	Release
1.46 (8DUJ31US)	1.46 (8DET76WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	Current release
1.45 (8DUJ30US)	1.45 (8DET75WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj30us.exe 8duj30us.txt
1.44 (8DUJ28US)	1.44 (8DET74WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj29us.exe 8duj29us.txt
1.43 (8DUJ28US)	1.43 (8DET73WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj28us.exe 8duj28us.txt
1.42 (8DUJ27US)	1.42 (8DET72WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj27us.exe 8duj27us.txt
1.40 (8DUJ26US)	1.40 (8DET70WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj26us.exe 8duj26us.txt
1.39 (8DUJ25US)	1.39 (8DET69WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj25us.exe 8duj25us.txt
1.38 (8DUJ24US)	1.38 (8DET68WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj24us.exe 8duj24us.txt
1.37 - 1.24(8DUJ22US)	1.37(8DET67WW)	1.24 (8DHT34WW) 1.24 (8ZHT34WW)	8duj23us.exe 8duj23us.txt
1.37(8DUJ22US)	1.37(8DET67WW)	1.23 (8DHT33WW) 1.23 (8ZHT33WW)	8duj22us.exe 8duj22us.txt
1.36 (8DUJ21US)	1.36 (8DET66WW)	1.22 (8DHT32WW) 1.22 (8ZHT32WW)	8duj21us.exe 8duj21us.txt
1.35 (8DUJ20US)	1.35 (8DET65WW)	1.22 (8DHT32WW) 1.22 (8ZHT32WW)	8duj20us.exe 8duj20us.txt
1.34 (8DUJ19US)	1.34 (8DET64WW)	1.22 (8DHT32WW) 1.22 (8ZHT32WW)	8duj19us.exe 8duj19us.txt
1.33 (8DUJ18US)	1.33 (8DET63WW)	1.21 (8DHT31WW) 1.21 (8ZHT31WW)	8duj18us.exe 8duj18us.txt
1.31 (8DUJ17US)	1.31 (8DET61WW)	1.20 (8DHT30WW) 1.20 (8ZHT30WW)	8duj17us.exe 8duj17us.txt
1.29 (8DUJ16US)	1.29 (8DET59WW)	1.20 (8DHT30WW) 1.20 (8ZHT30WW)	8duj16us.exe 8duj16us.txt
1.28 (8DUJ15US)	1.28 (8DET58WW)	1.13 (8DHT29WW) 1.13 (8ZHT29WW)	8duj15us.exe 8duj15us.txt
1.26 (8DUJ14US)	1.26 (8DET56WW)	1.13 (8DHT29WW) 1.13 (8ZHT29WW)	8duj14us.exe 8duj14us.txt
1.25 (8DUJ13US)	1.24 (8DET55WW)	1.13 (8DHT29WW) 1.13 (8ZHT29WW)	8duj13us.exe 8duj13us.txt
1.24 (8DUJ12US)	1.24 (8DET54WW)	1.13 (8DHT29WW) 1.13 (8ZHT29WW)	8duj12us.exe 8duj12us.txt
1.22	1.22 (8DET52WW)	1.12 (8DHT28WW) 1.12 (8ZHT28WW)	8duj11us.exe 8duj11us.txt
1.21	1.21 (8DET51WW)	1.11 (8DHT27WW) 1.11 (8ZHT27WW)	8duj10us.exe 8duj10us.txt
1.19	1.19 (8DET49WW)	1.09 (8DHT25WW) 1.09 (8ZHT25WW)	8duj09us.exe 8duj09us.txt
1.18	1.18 (8DET48WW)	1.08 (8DHT24WW) 1.08 (8ZHT24WW)	8duj08us.exe 8duj08us.txt
1.17	1.17 (8DET47WW)	1.08 (8DHT24WW) 1.08 (8ZHT24WW)	8duj07us.exe 8duj07us.txt
1.16	1.16 (8DET46WW)	1.07 (8DHT23WW) 1.07 (8ZHT23WW)	8duj06us.exe 8duj06us.txt
1.15	1.15 (8DET45WW)	1.06 (8DHT21WW)	8duj05us.exe 8duj05us.txt
1.11	1.11 (8DET41WW)	1.03 (8DHT19WW)	8duj03us.exe 8duj03us.txt