EndBASIC 0.11.0 available after a 1.5-year hiatus:

• Addresses top feature request - ability to define custom functions and subroutines.
• Includes other features like LCD console support, a new disassembler, and a faster execution engine.

Must-visit links:

• Launch the online interpreter
• Read the release notes
• Launch a Conway’s Game of Life demo

User-defined functions and subroutines:

• [EndBASIC 0.10] added GOTO and GOSUB, but needed structured callables with parameter passing and local variables.
• Implemented a declarative arguments parser for callables to handle arguments more efficiently.
• Converted the expression evaluator to bytecode to support calling user-defined functions from expressions.

Bytecode-based expression evaluation:

• Modified the compiler to emit bytecode for expression evaluation.
• Shifted most of the type-checking to the compiler to improve VM performance.
• Added a disassembler to peek into the VM's inner workings.

LCD console:

• Added a new backend for the console using an LCD for the Raspberry Pi.
• Published a separate blog post for details.
• Demonstrated with a video of EndBASIC running the snake game on the Raspberry Pi.

Known issues:

• Graphics console does not work on macOS as the SDL driver violates macOS assumptions.
• Retrofitting bytecode execution into the AST-based evaluator has accrued technical debt.
• The author needs a break and has forced the 0.11 release.