• Updates the upstream SQLite baseline to the latest patch release 3.53.4
• Avoids allocating memory on Windows during log writes which could cause a crash on Windows under non-default log settings with PRAGMA cipher_memory_security = ON
• Fixes "relocation truncated to fit" error for optimized GCC builds
• Adds comments clarifying intent of crypto_openssl.c
• Other miscellaneous fixes and general improvements

For additional details and release notes please consult the 4.18.0 release announcement.