Release v2.3.2

[oleg-jukovec]

This release improves the logic of Connect and pool.Connect in case of a hung I/O connection.

Changed

• Previously, pool.Connect attempted to establish a connection one after another instance. It could cause the entire chain to hang if one connection hanged. Now connections are established in parallel. After the first successful connection, the remaining connections wait with a timeout of pool.Opts.CheckTimeout (pool: fix pool.Connect if a server i/o hangs #444).

Fixed

• Connect() may not cancel Dial() call on context expiration if network connection hangs (dial: Connect() does not cancel by context if no i/o #443).
• pool.Connect() failed to connect to any instance if a first instance connection hangs (pool: fix pool.Connect if a server i/o hangs #444).