Forum: libpqxx point releases
Posted by: Jeroen Vermeulen https://pqxx.org/development/libpqxx/wiki/DownloadPage Most of the changes are for compatibility with newer compilers, C++11, and different operating systems. It's hard to make guarantees with C++, but you may find the binaries compatible with their respective previous versions. It is recommended that you use the 4.0.1 version where possible; the older versions will have problems with changes in more recent PostgreSQL versions. The updates also include support for the REPEATABLE READ isolation level. This is the new name for the old SERIALIZABLE level. Newer PostgreSQL backends have a new, fully standards-compliant implementation for SERIALIZABLE. If your binary uses the old SERIALIZABLE isolation level and you re-link it to a newer libpqxx, without recompiling, it will get REPEATABLE READ on newer backends; behaviour will be identical to what the application was originally written for. Or if you recompile the program against a newer libpqxx, it will get the new fully-compliant SERIALIZABLE isolation.
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