Introduction to Distributed Version Control with Mercurial
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# whoami
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Brian Neal <bgneal1@rockwellcollins.com>

Started at Rockwell Collins in July 1999

Government Systems Programs:

- UMS (July 1999 - Spring 2000)
- Surgical Strike - (Spring - Fall 2000)
- JTRS 2B - (Fall 2000 - Summer 2001)
- SCAMP SEP - (Summer 2001 - October 2004)
- TTNT (January 2005 - Present)

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Brief History of Version Control Tools
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First Generation
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- No networking
- Concurrency through locks only
- Examples:
  
  - SCCS - 1972
  - RCS - 1982 

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Brief History of Version Control Tools
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Second Generation
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- Client/Server networking; CVCS (Centralized Version Control)
- Merge before commit
- Examples:
  
  - CVS - 1990
  - IBM Rational ClearCase - 1992
  - Visual SourceSafe - 1994
  - Perforce - 1995
  - SVN - 2000

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Brief History of Version Control Tools
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Third Generation
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- Distributed networking; DVCS (Distributed Version Control)
- Merge before commit
- Examples

  - Bitkeeper - 2000
  - Darcs - 2003
  - Monotone - 2003
  - Git - 2005
  - **Mercurial** - 2005
  - Fossil - 2006
  - Bazaar - 2007