MetaQuotes released MT5 Build 6180 yesterday and it is now available via your broker's auto-update facility. The new build improves support for AI agents and matrix/vector functions:

MetaQuotes' forum announcement thread:
https://www.mql5.com/en/forum/515552
If you notice anything strange with this build 6180 or if you find some bugs, please let us know by posting below.
- Added support for new actions by AI agents (in Strategy Tester, for chart indicators, and retrieving logs).
- Added more methods to work with matrices and vectors: HasNan, ReplaceNan, Split, HSplit, VSplit, SwapRows, SwapCols, Fill, Flat, Reshape, Assign, Swap, Free.
- Fixed key press event processing during backtests in Strategy Tester.

MetaQuotes' forum announcement thread:
https://www.mql5.com/en/forum/515552
If you notice anything strange with this build 6180 or if you find some bugs, please let us know by posting below.