asyncpg v0.32.0

[elprans]

Improvements

• Support Python 3.15 (Run CI tests on Python 3.15 #1367, Bump uvloop #1378)
  (by @elprans in 1b11846 and 58c0c59)

• Support PostgreSQL 19 (Support PostgreSQL 19 #1379)
  (by @elprans in 8d2a5ae)

• Make pool min_size a maintained connection floor and add init_size to
  control the number of connections opened at startup (True connection floor for the pool #1323).
  Idle connections at or below min_size are retained, and closed connections
  are replaced in the background. init_size defaults to min_size.
  To preserve the previous behavior, where the pool could drain to zero,
  replace min_size=N with init_size=N, min_size=0.
  (by @shatilov-diman in 67a1cbc)

• Use hashlib.pbkdf2_hmac() for faster SCRAM password derivation (Use hashlib.pbkdf2_hmac for SCRAM salted password #1359)
  (by @twelfthlabor in 00319a9)

• Use the statement cache for copy_records_to_table() introspection (Use statement cache for copy_records_to_table introspection #1360)
  (by @matemax in dd05865)

Fixes

• Clean up connections rejected by target_session_attrs immediately so an
  unresponsive rejected host cannot delay the selected connection, and cleanup
  tasks cannot outlive the event loop. Rejected connections are aborted without
  waiting for a graceful disconnect; servers may log "unexpected EOF on client
  connection" if the Terminate message is not delivered before the transport
  closes.

• Fix a connection pool deadlock when releasing a connection after a protocol
  abort (Fix connection pool deadlock #1324)
  (by @pchaseh in 4a83cc2)

• Honor Connection.close(timeout=...) while waiting for a pending
  cancellation (Bound close(timeout) around a pending cancel #1361)
  (by @gyanu2507 in c06bcb4)

• Prevent stuck cancellation from blocking connection teardown or pool release
  by bounding cancellation with the command or release timeout (Prevent stuck cancellation from blocking connection teardown #1370)
  (by @elprans in 4cf0220)

• Preserve the server error when the connection closes mid-operation (Keep the server error when the connection closes mid-operation #1369)
  (by @RitiGrover in 6c8f1a7)

• Fix COPY cleanup when a records generator raises, preserving the original
  exception and avoiding protocol desynchronization and stalled rollback (Fix COPY cleanup when a records generator raises #1358)
  (by @CodingCossack in fdc6bc8)

• Reparse unnamed statements before cursor binding when the statement cache
  is disabled (Reparse unnamed statements before cursor binding #1364)
  (by @elprans in 302ba49)

• Allow cursors in transactions started outside Connection.transaction(),
  such as with an explicit BEGIN (Allow cursors in externally managed transactions #1350)
  (by @aryansk in 25aaaf5)

• Remove the query logger when the query_logger() block raises (Remove the query logger when the query_logger() block raises #1373)
  (by @kratos0718 in 6a7fbd3)

• Fix a segfault in Record.get() with an invalid number of positional
  arguments (Fix segfault in Record.get() with invalid positional argument count #1333)
  (by @apoorvdarshan in 40a3832)

• Align SSL startup retries with libpq and improve SSL rejection diagnostics
  (Align SSL startup retries with libpq and fix rejection diagnostics #1366). Retry alternative transports only before authentication succeeds.
  Direct TLS now requires sslmode=require, verify-ca, or verify-full,
  or an explicit SSLContext.
  (by @elprans in 78752c9)

• Preserve password errors during SSL fallback when the fallback fails with
  a less specific authorization error (fix: do not retry on wrong password (28P01) with sslmode=allow/prefer #1331)
  (by @Mauricio0129 in 2d97947)

• Handle cleartext password authentication when no password is supplied
  without raising an AttributeError (Handle missing password authentication cleanly #1351)
  (by @aryansk in 6be5915)

• Set the postgresql ALPN protocol on SSL contexts created by asyncpg so
  direct TLS connections work with PostgreSQL 17 and later (Set postgresql ALPN on SSL contexts created by asyncpg #1372).
  User-provided contexts must set this protocol for direct TLS connections.
  (by @DurandA in b21325d)

• Link explicitly against libm on non-Windows platforms to fix undefined
  math symbol errors when loading the extensions (Add explicit libm linkage to fix undefined symbol errors #1305)
  (by @veeceey in db8ecc2)

• Fix builds on FreeBSD 15 by linking against libstdthreads (Fix builds on FreeBSD 15 #1368)
  (by @elprans in 87bcaf9)

Other

• Replace pkg_resources with packaging in setup.py (Drop use of pkg_resources from setup.py #1362)
  (by @elprans in 6695db7)

• Build Linux and macOS ARM64 wheels on native runners and add Windows ARM64
  wheel builds (Build linux/macos arm64/aarch64 wheels on native runners #1308)
  (by @ddelange in 1e8cc1c)

• Add manual and PR-label-triggered dry runs to the release workflow (Add dry-run paths to release workflow #1374)
  (by @elprans in 1bd643e)

• Clarify how execute() uses prepared statements and how to confirm an
  INSERT in the documentation (docs: clarify that execute() uses prepared statements and how to confirm INSERT #1336)
  (by @pctablet505 in cdf816c)

• Fix typos in comments and docstrings (Fix typos in comments and docstrings #1332)
  (by @maxtaran2010 in bc3e246)

[bryanforbes]

Since Python 3.9 and 3.10 are both EOL, will they be removed from the supported versions for 0.32?