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PostGamma 0.1.0a1

Status: unreleased alpha candidate, intended for evaluation and feedback.

This is the first Python product and static C SDK built over PostgreSQL 19 and C ABI v1.4.

Included

  • open-or-create and explicit cluster-open modes;
  • multiple live instances with one owner process per cluster;
  • concurrent logical connections through a bounded executor;
  • materialized and chunked results;
  • simple and extended protocol execution;
  • prepared statements;
  • COPY IN and COPY OUT;
  • structured errors, notices, notifications, logs, and overflow events;
  • checkpoint and maintenance operations;
  • in-process logical dump and restore;
  • optional Arrow C Data export;
  • DB-API 2.0 and caller-driven asyncio adapters;
  • bundled pgvector 0.8.6 with HNSW, IVFFlat, parallel-build, concurrency, and close/reopen validation;
  • a reviewed native-extension SDK;
  • a symbol-isolated static C SDK and matching resource pack; and
  • CPython wheels with the kernel statically incorporated.

Supported release boundary

  • Linux x86-64;
  • x86-64-v1 CPU baseline with no AVX requirement;
  • glibc 2.17 or newer for official manylinux wheels;
  • CPython 3.10 through 3.14;
  • PostgreSQL cluster major 19;
  • one read-write operating-system process owner per cluster directory.

Read limits and unsupported features before deploying this alpha.

Data compatibility

Direct cluster compatibility with a later alpha is not promised by this candidate. Make a logical dump before upgrading and retain the source cluster until restore verification succeeds. See the release index for the general alpha upgrade rule.

Downloads and verification

This candidate has not been published. After publication, the GitHub Release will provide official binaries, the release manifest, and checksums. PyPI will receive the same wheel bytes that passed the release matrix. See downloads for installation and verification commands. PostGamma-owned source is licensed under Apache-2.0.