github.com/jackc/pgx/v5

• Last release today

  14 Nov 2026

• Ships on a steady schedule

  a new release about every 9 days

• Nearly every release is documented

  notes for 36 of 36 stable releases

• Nothing withdrawn

  no release was ever pulled

• 5 years old

  488 releases · first in 2021

1. v5.4.014 Jun 20232 sources agree

   Replace platform specific syscalls for non-blocking IO with more traditional goroutines and deadlines. This returns to the v4 approach with some addit

   • Replace platform specific syscalls for non-blocking IO with more traditional goroutines and deadlines. This returns to the v4 approach with some additional improvements and fixes. This restores the ability to use a pgx.Conn over an ssh.Conn as well as other non-TCP or Unix socket connections. In addition, it is a significantly simpler implementation that is less likely to have cross platform issues.
   • Optimization: The default type registrations are now shared among all connections. This saves about 100KB of memory per connection. pgtype.Type and pgtype.Codec values are now required to be immutable after registration. This was already necessary in most cases but wasn't documented until now. (Lev Zakharov)
   • Fix: Ensure pgxpool.Pool.QueryRow.Scan releases connection on panic
   • CancelRequest: don't try to read the reply (Nicola Murino)
   • Fix: correctly handle bool type aliases (Wichert Akkerman)
   • Fix: pgconn.CancelRequest: Fix unix sockets: don't use RemoteAddr()
   • Fix: pgx.Conn memory leak with prepared statement caching (Evan Jones)
   • Add BeforeClose to pgxpool.Pool (Evan Cordell)
   • Fix: various hstore fixes and optimizations (Evan Jones)
   • Fix: RowToStructByPos with embedded unexported struct
   • Support different bool string representations (Lev Zakharov)
   • Fix: error when using BatchResults.Exec on a select that returns an error after some rows.
   • Fix: pipelineBatchResults.Exec() not returning error from ResultReader
   • Fix: pipeline batch results not closing pipeline when error occurs while reading directly from results instead of using a callback.
   • Fix: scanning a table type into a struct
   • Fix: scan array of record to pointer to slice of struct
   • Fix: handle null for json (Cemre Mengu)
   • Batch Query callback is called even when there is an error
   • Add RowTo(AddrOf)StructByNameLax (Audi P. Risa P)

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