INTEL DOES NOT WARRANT THAT THE FUNCTIONS CONTAINED IN THIS PATCH
WILL MEET YOUR REQUIREMENTS, OR THAT THE OPERATION OF THIS PATCH
WILL BE UNINTERRUPTED OR ERROR-FREE.

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quartus-21.2-0.42-readme.txt
Readme file for Intel(R) Quartus(R) Prime 21.2 Patch 0.42
Copyright (C) Intel Corporation 2019 All right reserved.
Patch created on June 7, 2022, 6:04 a.m.
Patch Case#: 16014176504
Patches included: 
Patches conflicted: 

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Description:
Currently in the Quartus compiler, when an lsm_bf atom is instantiated in a sector, the entire lsm interface for that sector becomes reserved regardless of if the entire interface is actually being used in the design. This means if an lsm_bf atom is placed in a sector on the device, the compiler will not allow any other lsm atoms to be placed in that same sector even if it is physically possible to do so. With the fix, the compiler detects when an lsm_bf atom is not using all of the available lsm_gpio interfaces so that if there are unused interfaces, it allows other lsm_gpio atoms to be placed in that same sector up until all 20 interfaces are being used.



Caution - You must either have previously installed the
          Intel(R) Quartus(R) Prime 21.2 software or must
          install the Intel(R) Quartus(R) Prime 21.2 software
          before installing this patch. Otherwise, the patch will
          not be installed correctly and the Intel(R) Quartus(R) Prime
          software will not run properly.

Note:
<Patches included> - means this patch includes those patches. If you
    already installed those patches, you can safely install this new
    patch on top.
<Patches conflicted> - means this patch conflicts with those patches.
    If you have any of those patches installed, don't install this patch.
    Contact Intel for further support.