This is an updated module of Micro Bridge 13. Download the following zip file and read the enclosed Readme_English.txt.
If you omit the step 1 written in the Readme_English.txt, you will not be able to open the Help file of Micro Bridge.

An update to Micro Bridge 13.40 (7/31/2024, mbup1340.zip, 12,606KB)

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New Features in Micro Bridge 13.4 (8/8/2024)

• Support Multithread Computing (up to 16 threads)
  This enables faster computing and deeper search.
  Bid and play skill of version 13.4 is about 1.3 IMPs/24 boards stronger than version 13.3.
  
• Add the following bidding options.
  1) Competitive Double through 3D
  2) 1M-(p)-1NT Semi-forcing
  3) After 1x-1NT-p: 2D/2H/2S are natural sign off or 2D/2H Jacoby transfer, 2S is sign off in either minor
  4) 1M-(p)-3M guarantees 3-card support or 4-card support
  5) 1x-(p)-3y(Jump shift) 6+card invitational (2/1 GF system)
  6) 2NT Jacoby 16HCP+ (2/1 GF system)
  7) Weak 1NT-(X)-XX is an escape with 4333, 4432, and 4441
• Add two bidding systems
  1) YBS Yotsuya Basic Standard Bid System
  2) ASA Advanced Standard American Five Card Majors
• Revise three bidding systems
  1) ACS ACBL Club Series: Bidding in the 21st Century (Five Card Majors)
  2) AYC ACBL Standard Yellow Card: Five Card Majors (2006 Revised Version)
  3) TGF Two Over One Game Force (Revised Version)
• Delete two bidding systems
  1) T4M Traditional Four Card Majors
  2) T5M Traditional Five Card Majors
• Add one opening lead option.
  Exceptions to "Top from xxxx".
  1) Lead 2nd from 9xxx (vs Suit & Notrump)
  2) Same as length lead when leading partner's suit (vs Notrump)

• Improved Bid and Play Algorithm
  13.3 is the version which won the 2019 World Computer Bridge Championship.

• Improved Bid and Play Algorithm
  Bid and play skill of version 13.2 is about 3 IMPs/24 boards stronger than version 13.0.
• Adds 'Show Next Bidding Rules' command.
  You can easily check the meaning of bids at your turn.
• Adds 'Specify an Opening Lead Card' function.
  You can specify the opening lead of computer player.
• Adds 'Rotate Hands Clock/Counterclockwise' and 'Swap any two Hands' commands to Hand Editor.
• Improves usability when you use touch pad or touch panel pointing device.
  1) You can show the buttons of Action menu at the right side of window.
  2) Enlarged bidding buttons.
  3) Enlarged Hand Editor window. You can edit hands using large size cards.
• Changes font design to fit recent Windows version.
• The problem that the major update of Windows 10 makes Keycode ineffective is fixed.
• Serial and Modem interface for the network play are no longer supported.
• The following serious bug is fixed.
  If you choose a Regional Notation other than English, Micro Bridge 13 fails to start.
• Some other minor bugs are fixed.

• Micro Bridge 13 supports Windows 7/8/10/11