MT5 Build 6140 has been released. It fixes some issues introduced in previous builds and continues to improve support of AI features:

MetaQuotes' forum announcement thread:
https://www.mql5.com/en/forum/514909
If you notice anything strange with this build 6140 or if you find some bugs, please let us know by posting below.
- Added support for multiple new AI agents.
- Added an option to delete AI agent chats.
- Added a
MathCompareByDigits()function to compare two numbers based on the given number of significant digits. - Optimized operation of MCP tools.
- Reduced context window size for the built-in MQL5 community AI provider.
- Fixed an issue that could reset order expiration time incorrectly when AI agent modified SL/TP for pending orders.
- Fixed an issue with account details not filling properly when accessing an account via Favorites.
- Fixed some issues with matrix and vector calculation methods.
- Fixed an issue reading and writing with ReadCSV and WriteCSV matrix/vector methods when special floating-point values are involved.
- Fixed an issue with MetaEditor not saving the last open tab in the Navigator upon restarting.
- Fixed a bug with incorrect Bid/Ask values returned to MQL5 programs following an account change.

MetaQuotes' forum announcement thread:
https://www.mql5.com/en/forum/514909
If you notice anything strange with this build 6140 or if you find some bugs, please let us know by posting below.