VASSAL Engine version 3.6.10 is now released. VASSAL is a game engine for building board and card games online that can be run in real time over the Internet or via e-mail. VASSAL Engine runs on all platforms and is free and open source software. The specific updates include:

IMPORTANT

• New 64-bit ARM packages: There are now MacOS and Windows packages for 64-bit ARM processors. If your Mac has an Apple Silicon CPU (64-bit ARM processor), the 64-bit ARM version is recommended.
• Code that was deprecated more than a year ago has been removed. Modules containing custom code that use this code must be updated if they are to be used with 3.6.
• What worked before may be broken. If new bugs are found, they can be reported to the development team.
• Modules saved in 3.6 cannot be opened by earlier versions of VASSAL. Users are advised to keep a backup copy of any pre-3.6 modules that they plan to modify in 3.6.

The changes since 3.6.9 are as follows:

Bug fixes

• 11883: Fixed label order for “Select play mode” and “Enter your name” steps in Welcome Wizard
• 11879: NPE when cutting and pasting GlobalPropertyFolder
• 11860: Warn when the same piece is both Mat and Mat Cargo
• 11858: Clear all PieceSlot cache after loading extension
• 11846: Prevent empty attribute results during search
• 11823: NPE in GameRefresher when refreshing unnamed Decks
• 11813: NPE in PieceSlot.getLocalizedConfigureName()
• 11759: Negative Dice or Sides are not allowed
• 11748: NPE when cutting and pasting prototype folders
• 11455: Prevent NPE when adding empty KeyStrokes to list
• 11452: Prevent NPE when invalid file specified in img tag

More details can be found at: https://forum.vassalengine.org/t/vassal-3-6-10-released/76275