From 90d289d92f03b47065ea45185ff2f9926e027517 Mon Sep 17 00:00:00 2001
From: Kevin Veen-Birkenbach <kevin@veen.world>
Date: Sun, 16 Aug 2026 13:57:49 +0200
Subject: [PATCH] Release version 3.4.3

---
 CHANGELOG.md   | 14 ++++++++++++++
 pyproject.toml |  2 +-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbcdc7a..9eb050f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [3.4.3] - 2026-08-16
+
+- Backup: *create_version_directory* carried *exist_ok=True*, so a run starting
+  in the same wall-clock second as its predecessor claimed that predecessor's
+  generation. Generation names carry seconds, and a host with little to copy
+  finishes inside one — rsync *--delete* then overwrote a finished generation,
+  and only afterwards did *create_stamp_file* refuse the already-stamped
+  directory and exit 2. The guard reported the damage instead of preventing it.
+- Backup: the generation directory is claimed exclusively. Claiming it is the
+  first filesystem action of a run, so a collision aborts before the first
+  write and names the second it collided on.
+- Tests: the idempotence test asserted the reuse and gave way to one that
+  requires the refusal.
+
 ## [3.4.2] - 2026-08-15
 
 - Backup: *has_image* matched the raw *.Config.Image*, so the registry host and
diff --git a/pyproject.toml b/pyproject.toml
index 208eeeb..32ea21a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "backup-docker-to-local"
-version = "3.4.2"
+version = "3.4.3"
 description = "Backup Docker volumes to local with rsync and optional DB dumps."
 readme = "README.md"
 requires-python = ">=3.9"