Welcome to pgrx v0.19.0. Among other things, this brings support for
Postgres v19beta1.

As usual, install cargo-pgrx with `cargo install cargo-pgrx --version
0.19.0 --locked`, and if you want Postgres 19beta1 support you'll also
need to run `cargo pgrx init`. And make sure to update your crate
dependencies with `cargo pgrx upgrade`.


## What's Changed

* add pg19beta1 support by @eeeebbbbrrrr in
#2303

The headline item. As more betas are released we'll release new pgrx
point releases supporting them.

* upgrade dependencies and rust edition to 2024 by @eeeebbbbrrrr in
#2312

Notably, pgrx wants to use the Rust 2024 edition now.

### cargo-pgrx

* fix(cargo-pgrx): preserve cargo rustflags for cdylib builds by
@eeeebbbbrrrr in #2304

Prior to this fix, RUSTFLAGS changes in `.cargo/config.toml` would have
been ignored.

* Retry Postgres downloads during init by @eeeebbbbrrrr in
#2314
* fix: `cargo pgrx schema named_sql_entity` should export
schema-qualified by @eeeebbbbrrrr in
#2310
* Replace cargo-edit with crates-index and toml_edit by @cbandy in
#2305
* feat(cargo-pgrx): accept Cargo VersionReq syntax for upgrade --to by
@isdaniel in #2321


### New Features

* Add #[pg_guc_hook] macro for simple GUC hooks by @cbandy in
#2323



### Postgres Bindings and Wrappers

* feat: expose PGLZ compression bindings + add pglz_inspect example by
@isdaniel in #2326
* fix: bridge buffer page helpers via cshim on PG16+ by @mrdrivingduck
in #2331
* Fix binding of `struct Port` on pg17 by @cbandy in
#2302
* feat: add Bytea<'fcx> argument type with zero-copy return by @isdaniel
in #2301
* Add wrappers for postgres geometric types. by @hamiltop in
#1332


### Bugfixes and Cleanup

* Guard pgrx docs.rs release builds by @eeeebbbbrrrr in
#2315
* Fix docs.rs build by localizing docsrs cfg by @eeeebbbbrrrr in
#2299
* remove redundant casts and improve safety in varlena functions by
@isdaniel in #2298
* Update trybuild to 1.0.116 by @cbandy in
#2306
* Quiet two errors from rust-analyzer by @cbandy in
#2307
* fix dependabot security warnings by @eeeebbbbrrrr in
#2313
* refactor: unify #[pg_extern] attribute parsing via syn by @isdaniel in
#2317
* chore: add examples PostgresType in/out variants and memory-context
patterns by @isdaniel in
#2318
* docs(spi): clarify SpiClient::select vs update for read-only vs
writable SPI by @uded in
#2328
* fix pg19 drift by @eeeebbbbrrrr in
#2330

## New Contributors

* @hamiltop made their first contribution in
#1332
* @uded made their first contribution in
#2328

**Full Changelog**:
v0.18.1...v0.19.0