v4.0.2

Improvements

• Faster JSON object reading in some cases in #1442
• Simplified JSON read code in #1449
• Adding title for json schema when writing variants in #1451

Fixes

• Fixed volatile bug by @stephenberry in #1440
• Handling for escaped string reading (at least for column wise CSV) in #1446
• Avoiding _umul128, fallback to umul128_generic in MSYS2/MINGW32 by @jalius in #1453
• Eigen check for get_member to avoid invocable branch in #1458

In Development

• Asio improvementsin #1444
• Use a single vector for async_map and support atomic (non-movable) types directly in #1456

Full Changelog: v4.0.1...v4.0.2