Sourced from pg's changelog.

v1.6.3 [2025-12-29] Lars Kanis lars@greiz-reinsdorf.de

Added:

• Add binary gems for ruby-4.0, now providing ruby-3.0 to 4.0. #682
• Update fat binary gem to OpenSSL-3.6.0 and PostgreSQL-18.1.
• Improve documentation of PG::Result and README. #676
• Update errorcodes to PostgreSQL-18.
• Use rb_hash_new_capa on Ruby-3.2+ . #674
• Deny any server communication on a frozen PG::Connection . #677
• Fix possible race condition in PG::Result in Ractor context. #674

Removed:

• Drop binary gem support for platform x86-mingw32. #682
• Drop binary gems for ruby-2.7.

v1.6.2 [2025-09-02] Lars Kanis lars@greiz-reinsdorf.de

• Remove several absolute paths from native binaries which pointed to build directories. #668
• Fix bad fallback path to pg_service.conf. #666
• Use rbpg_ prefix for base64_* functions to avoid name clashes with functions provided by other libraries like Heimdal on Macos. #667
• Raise a more descriptive error message in case of pg_ext LoadError. #664
• Freeze some constants to make them available in a Ractor context. #660
• Several documentation improvements.
• Update native binary gems to OpenSSL-3.5.2, krb5-1.22.1 and PostgreSQL-17.6.

v1.6.1 [2025-08-03] Lars Kanis lars@greiz-reinsdorf.de

• Add binary gems for platforms aarch64-linux-musl and x86_64-linux-musl without the need to install package gcompat. #657.
• Serialize CompositeCoder#dimensions only when set. #652 This fixes the compatibility to pg-1.5.9, when deserializing Marshal data from pg-1.6, as long as the new attribute isn't used.
• Remove dependency to MSYS2 package "postgresql" from binary Windows gem #654

v1.6.0 [2025-07-27] Lars Kanis lars@greiz-reinsdorf.de

Added:

• Add binary gems for Ruby 3.4.
• Add fat binary gem for platform aarch64-mingw-ucrt aka Windows on ARM #626, for platform Macos on Intel and ARM #643, for platform aarch64-linux #646 and for platform x86_64-linux #551.
• Update fat binary gem to OpenSSL-3.5.1 and PostgreSQL-17.5.
• Add a patch to libpq to avoid starvation on bigger SSL records, which some database engines other than vanilla PostgreSQL use. This patch applies to platform specific binary gems only. #616
• Add support for new query cancel functions of PostgreSQL-17. This adds the new class PG::CancelConnection which provides the ability to cancel a query per blocking or per non-blocking functions. If the new functions are available they are used and the older are no longer compiled in.

... (truncated)

• d4539c2 Bump VERSION to pg-1.6.3 and add release notes
• 720900d Merge pull request #682 from larskanis/ruby-4.0
• f605b59 Remove x86-mingw32 from binary builds
• 5c69000 Update to ruby-4.0
• 2acaf3d CI: workaround missing ruby-4.0 on Window
• b500ded fix comment
• bc3f2f8 CI: Macos-13 on Intel is deprecated
• 77667eb Merge pull request #678 from larskanis/ci-update
• 6e52ce5 CI: Update PostgreSQL on Macos
• 6d40f50 CI: Print mkmf.log on failure on Macos
• Additional commits viewable in compare view

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