From 8a93a61ca9468ad1bab1d6807a2ac4d701942565 Mon Sep 17 00:00:00 2001
From: Kevin Veen-Birkenbach <kevin@veen.world>
Date: Sun, 2 Aug 2026 12:07:34 +0200
Subject: [PATCH] Release version 3.4.0

---
 CHANGELOG.md   | 15 +++++++++++++++
 pyproject.toml |  2 +-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ddd73e0..2e94678 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## [3.4.0] - 2026-08-02
+
+- Backup: *-a* implies *-D*, so a generation was written with
+  *--devices --specials* and rsync recreated every unix socket and fifo found in
+  a volume. Where the backup root is an nfs-ganesha export, ganesha accepts the
+  socket on write but cannot serve it back, and the remote pull's sender then
+  fails with *readdir* / *readlink_stat* "Invalid argument (22)" and exits 23 —
+  deterministically, for every retry. *--no-D* keeps them out of the generation.
+- Backup: nothing restorable is lost. Sockets and fifos are recreated by the
+  daemons that own them, and the postfix queue itself — *incoming*, *active*,
+  *deferred*, *hold*, *maildrop* — is unaffected, so accepted-but-undelivered
+  mail stays in the backup. Device nodes go too; the only volume that could hold
+  them is a nested docker data root, which does not belong in a backup anyway.
+- Tests: the flag is asserted on the rsync invocation.
+
 ## [3.3.0] - 2026-08-02
 
 - Backup: *--volumes-no-backup-required* excludes a volume by name.
diff --git a/pyproject.toml b/pyproject.toml
index f29cfa6..3721c19 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "backup-docker-to-local"
-version = "3.3.0"
+version = "3.4.0"
 description = "Backup Docker volumes to local with rsync and optional DB dumps."
 readme = "README.md"
 requires-python = ">=3.9"