add supported authentication modes (#18269)

* add supported authentication modes

* Update src/content/docs/hyperdrive/reference/supported-databases.mdx

* Update src/content/docs/hyperdrive/reference/supported-databases.mdx

Author: thomasgauvin

src/content/changelogs/hyperdrive.yaml

@@ -5,6 +5,12 @@ productLink: "/hyperdrive/"
 productArea: Developer platform
 productAreaLink: /workers/platform/changelog/platform/
 entries:
+  - publish_date: "2024-11-19"
+    title: Hyperdrive now supports clear-text password authentication
+    description: |-
+      When connecting to a database that requires secure clear-text password authentication over TLS, Hyperdrive will now support this authentication method.
+
+      Refer to the documentation to see [all PostgreSQL authentication modes supported by Hyperdrive](/hyperdrive/reference/supported-databases#supported-postgresql-authentication-modes).
   - publish_date: "2024-10-30"
     title: New Hyperdrive configurations to private databases using Tunnels are validated before creation
     description: |-

src/content/docs/hyperdrive/reference/supported-databases.mdx

@@ -3,7 +3,6 @@ pcx_content_type: concept
 title: Supported databases
 sidebar:
   order: 2
-
 ---
 
 ## Database support
@@ -12,12 +11,20 @@ Details on which database engines and/or specific database providers are support
 
 | Database Engine | Supported                | Known supported versions | Details                                                                                              |
 | --------------- | ------------------------ | ------------------------ | ---------------------------------------------------------------------------------------------------- |
-| PostgreSQL      | ✅                        | `9.0` to `16.x`          | Both self-hosted and managed (AWS, Google Cloud, Oracle) instances are supported.                    |
-| Neon            | ✅                        | All                      | Neon currently runs Postgres 15.x                                                                    |
-| Supabase        | ✅                        | All                      | Supabase currently runs Postgres 15.x                                                                |
-| Timescale       | ✅                        | All                      | See the [Timescale guide](/hyperdrive/examples/timescale/) to connect.                               |
-| Materialize     | ✅                        | All                      | Postgres-compatible. Refer to the [Materialize guide](/hyperdrive/examples/materialize/) to connect. |
-| CockroachDB     | ✅                        | All                      | Postgres-compatible. Refer to the [CockroachDB](/hyperdrive/examples/cockroachdb/) guide to connect. |
+| PostgreSQL      | ✅                       | `9.0` to `16.x`          | Both self-hosted and managed (AWS, Google Cloud, Oracle) instances are supported.                    |
+| Neon            | ✅                       | All                      | Neon currently runs Postgres 15.x                                                                    |
+| Supabase        | ✅                       | All                      | Supabase currently runs Postgres 15.x                                                                |
+| Timescale       | ✅                       | All                      | See the [Timescale guide](/hyperdrive/examples/timescale/) to connect.                               |
+| Materialize     | ✅                       | All                      | Postgres-compatible. Refer to the [Materialize guide](/hyperdrive/examples/materialize/) to connect. |
+| CockroachDB     | ✅                       | All                      | Postgres-compatible. Refer to the [CockroachDB](/hyperdrive/examples/cockroachdb/) guide to connect. |
 | MySQL           | Coming soon              |                          |                                                                                                      |
 | SQL Server      | Not currently supported. |                          |                                                                                                      |
 | MongoDB         | Not currently supported. |                          |                                                                                                      |
+
+## Supported PostgreSQL authentication modes
+
+Hyperdrive supports the following [authentication modes](https://www.postgresql.org/docs/current/auth-methods.html) for connecting to PostgreSQL databases:
+
+- Password Authentication (`md5`)
+- Password Authentication (`password`) (clear-text password)
+- SASL Authentication (`SCRAM-SHA-256`)