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MS-DOS 5 Beta

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The MS-DOS 5.0 project started in December 1989. Codenamed "Lifeboat", it is based on MS-DOS 4.00 code. It was the first version of MS-DOS to use beta builds.[1][2][3]

Several MS-DOS 5.00 betas were released before the final launch:

Builds Description Desktop Screenshot
Build 70 Build 70 is MS-DOS 5.00 Pre-Beta 1 Build.
Build 112 Build 112 is MS-DOS 5.00 Pre-Beta 1 Build.
Build 223 Build 223 is MS-DOS 5.00 Beta 1 Build.
Build 224 Build 224 is MS-DOS 5.00 Beta 1 Build dated to 06-07-1990. Dosshell is split into three parts: Color Manager, File Manager and Program Manager.
Build 225 Build 225 is MS-DOS 5.00 Beta 1 Build.
Build 226 Build 226 is MS-DOS 5.00 Beta 1 Build.
Build 227 Build 227 is MS-DOS 5.00 Beta 1 Build.
Build 333 Build 333 is MS-DOS 5.00 Beta 2 Build dated to 08-15-1990. Is the first MS-DOS 5.00 Builds to have Task Swapper
Build 392b Build 392b is MS-DOS 5.00 Beta 2 Build.
Build 409c Build 409c is December 1990 build of MS-DOS 5.00.
MS-DOS 5 Beta Command.com
Build 432 Build 432 is January 1991 build of MS-DOS 5.00.
Build 460 Build 460 is late January 1991 build of MS-DOS 5.00 dated January 30, 1991
Build 490 Build 490 is early February 1991 build of MS-DOS 5.00 dated February 7, 1991
MS-DOS 5.00.490 Beta Command
Build RC1 Build RC1 is first Release Candidate Builds dated on Feb 28, 1991.
Build RC3 Build RC3 is the first third Release Candidate builds.
Build RC3A Build RC3A is the Release Candidate dated on March 8, 1991.
Build RC10 Build RC10 is dated at March 22, 1991. It seems to be the final Release Candidate.

See also

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References

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