GEOS Configure 2.1.1 Release 3 by Paul Murdaugh, released (June 20th, 2021) - This .D81 disk image contains four new Configure files that you can use to replace the original Configure on your GEOS 2.0 disk.  Two of the files are for the Commodore 128, and two for the Commodore 64.  The files named CONFIGUREr and 128 CONFIGUREr should be used with geoRAM expansions, and the ones without the "r" should be used with REU's like the 1764, 1750.  Here is a summary of the new features as written by Paul on this Facebook post:

GEOS FIxes from latest original configure.

REU Support up to 16MB.

RAM 1581 drive bug is fixed. Bug caused "auto copy" to corrupt the REU 1581 ram drive.

DMA option and RBOOT option were backwards. Setting DMA transfers on turned on rboot and turning on rboot activated DMA option. If both were active you would never notice a problem. Fixed to behave as it should.

GEORAM Fixes.

GEORAM support up to 4MB.

RAM 1581 drive bug fixed. (same bug as above).

Dual Top v2.5 by Paul B. Murdaugh (Dated 7/11/1991) is an EXCELLENT replacement for the GEOS DeskTop.  If you've used GEOS for any amount of time, you'll know that the DeskTop interface gets a bit clunky when dealing with many files.  Dual Top to the rescue!  Dual Top forgoes page after page of icons in exchange for a simple but powerful two panel interface for getting at your program and documents.  Please see the documentation included in the archive for further info.

MegaPatch 3 is a major enhancement for the GEOS operating system.  Manual is also on this site.

TopDesk 64 v5.0 Release .01 (October 17th, 2021) by "TD64-Friends" - TopDesk is a replacement DeskTop for GEOS running the MegaPatch 3.3 (Release 6 or newer) updates.  There are versions for both the Commodore 64 and Commodore 128 including builds for German, Spanish and English. I haven't used this extensively, but I like what I've seen so far.  

Wheels 64 v4.4 Fixed - Full version of Wheels64