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PG-1409 Release notes 17.4.1 #775

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modified: .github/workflows/main.yml
modified: docs/apt.md
modified: docs/contrib.md
modified: docs/enable-extensions.md
modified: docs/release-notes-v17.2.md
new file: docs/release-notes-v17.4.md
modified: docs/release-notes.md
modified: docs/telemetry.md
modified: mkdocs-base.yml
modified: mkdocs-pdf.yml
modified: variables.yml

modified:   .github/workflows/main.yml
        modified:   docs/apt.md
        modified:   docs/contrib.md
        modified:   docs/enable-extensions.md
        modified:   docs/release-notes-v17.2.md
        new file:   docs/release-notes-v17.4.md
        modified:   docs/release-notes.md
        modified:   docs/telemetry.md
        modified:   mkdocs-base.yml
        modified:   mkdocs-pdf.yml
        modified:   variables.yml
@@ -8,7 +8,7 @@ This release of Percona Distribution for PostgreSQL is based on Percona Server f

This release fixes [CVE-2025-1094](https://www.postgresql.org/support/security/CVE-2025-1094/), which closed a vulnerability in the `libpq` PostgreSQL client library but introduced a regression related to string handling for non-null terminated strings. The error would be visible based on how a PostgreSQL client implemented this behavior. This regression affects versions 17.3, 16.7, 15.11, 14.16, and 13.19. For this reason, version 17.3 was skipped.

### Updated version of `pg_tde`
### A new version of `pg_tde`

Percona Distribution for PostgreSQL includes the Release Candidate of `pg_tde` extension that brings in Transparent Data Encryption. This version of `pg_tde` provides a bunch of improvements, among which is the redesigned WAL encryption, single-tenancy support, ability to change key provider configuration and more. Learn about these features in the [`pg_tde` release notes :octicons-link-external-16:](https://docs.percona.com/pg-tde/release-notes/rc.html).
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I don't like how it sounds now. I mean when I read it, my impression is that single tenancy was not supported before. Meanwhile what has been improved is the ease of use for single tenant use cases.

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Also, changes to key provider were possible before as well. What has changed in this version is that they can be done while the database is offline...

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lastly, the tde_heap_basic has been marked as deprecated as of the RC release and it will be going away in the GA

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We have the info about tde_heap_basic deprecation in pg_tde release notes, do we need to duplicate it here?

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