remove shared-key

Separate the cache for different Rust versions
and only write to the cache from the main branch.

.github/workflows/ci.yml

@@ -41,6 +41,9 @@ jobs:
         shell: bash
       - name: Cache rust cargo artifacts
         uses: swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4
+        with:
+          save-if: false
+          add-rust-environment-hash-key: false
       - name: Run rustfmt
         run: cargo fmt --all -- --check
       - name: Run clippy
@@ -90,8 +93,15 @@ jobs:
         with:
           show-progress: false
           persist-credentials: false
+
+      - run: rustup override set $RUST_VERSION
+        shell: bash
+
       - name: Cache rust cargo artifacts
         uses: swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4
+        with:
+          save-if: false
+          add-rust-environment-hash-key: false
       - name: Rustdoc
         run: cargo doc --document-private-items --no-deps
 
@@ -135,6 +145,15 @@ jobs:
 
       - name: Cache rust cargo artifacts
         uses: swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4
+        with:
+          # Only save the cache from the main branch runs.
+          # No need for PRs to write to the cache.
+          ##save-if: ${{ github.ref == 'refs/heads/main' }}
+
+          # Do not hash Cargo.lock.
+          # We want the cache to be used later in PRs
+          # even if it updates some dependency.
+          add-rust-environment-hash-key: false
 
       - name: Install nextest
         uses: taiki-e/install-action@5f57d6cb7cd20b14a8a27f522884c4bc8a187458
@@ -167,8 +186,14 @@ jobs:
           show-progress: false
           persist-credentials: false
 
+      - run: rustup override set $RUST_VERSION
+        shell: bash
+
       - name: Cache rust cargo artifacts
         uses: swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4
+        with:
+          save-if: false
+          add-rust-environment-hash-key: false
 
       - name: Build C library
         run: cargo build -p deltachat_ffi
@@ -193,8 +218,14 @@ jobs:
           show-progress: false
           persist-credentials: false
 
+      - run: rustup override set $RUST_VERSION
+        shell: bash
+
       - name: Cache rust cargo artifacts
         uses: swatinem/rust-cache@c19371144df3bb44fab255c43d04cbc2ab54d1c4
+        with:
+          save-if: false
+          add-rust-environment-hash-key: false
 
       - name: Build deltachat-rpc-server
         run: cargo build -p deltachat-rpc-server

Cargo.lock

@@ -36,7 +36,7 @@ checksum = "b169f7a6d4742236a0a00c541b845991d0ac43e546831af1249753ab4c3aa3a0"
 dependencies = [
  "cfg-if",
  "cipher",
- "cpufeatures",
+ "cpufeatures 0.2.17",
 ]
 
 [[package]]
@@ -136,7 +136,7 @@ checksum = "3c3610892ee6e0cbce8ae2700349fcf8f98adb0dbfbee85aec3c9179d29cc072"
 dependencies = [
  "base64ct",
  "blake2",
- "cpufeatures",
+ "cpufeatures 0.2.17",
  "password-hash",
  "zeroize",
 ]
@@ -497,16 +497,16 @@ dependencies = [
 
 [[package]]
 name = "blake3"
-version = "1.8.3"
+version = "1.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2468ef7d57b3fb7e16b576e8377cdbde2320c60e1491e961d11da40fc4f02a2d"
+checksum = "0aa83c34e62843d924f905e0f5c866eb1dd6545fc4d719e803d9ba6030371fce"
 dependencies = [
  "arrayref",
  "arrayvec",
  "cc",
  "cfg-if",
  "constant_time_eq 0.4.2",
- "cpufeatures",
+ "cpufeatures 0.3.0",
 ]
 
 [[package]]
@@ -799,7 +799,7 @@ checksum = "c3613f74bd2eac03dad61bd53dbe620703d4371614fe0bc3b9f04dd36fe4e818"
 dependencies = [
  "cfg-if",
  "cipher",
- "cpufeatures",
+ "cpufeatures 0.2.17",
 ]
 
 [[package]]
@@ -1011,6 +1011,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "cpufeatures"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b2a41393f66f16b0823bb79094d54ac5fbd34ab292ddafb9a0456ac9f87d201"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "crc"
 version = "3.2.1"
@@ -1216,7 +1225,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97fb8b7c4503de7d6ae7b42ab72a5a59857b4c937ec27a3d4539dba95b5ab2be"
 dependencies = [
  "cfg-if",
- "cpufeatures",
+ "cpufeatures 0.2.17",
  "curve25519-dalek-derive",
  "digest",
  "fiat-crypto",
@@ -3246,7 +3255,7 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cb26cec98cce3a3d96cbb7bced3c4b16e3d13f27ec56dbd62cbc8f39cfb9d653"
 dependencies = [
- "cpufeatures",
+ "cpufeatures 0.2.17",
 ]
 
 [[package]]
@@ -4412,7 +4421,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8159bd90725d2df49889a078b54f4f79e87f1f8a8444194cdca81d38f5393abf"
 dependencies = [
- "cpufeatures",
+ "cpufeatures 0.2.17",
  "opaque-debug",
  "universal-hash",
 ]
@@ -4424,7 +4433,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d1fe60d06143b2430aa532c94cfe9e29783047f06c0d7fd359a9a51b729fa25"
 dependencies = [
  "cfg-if",
- "cpufeatures",
+ "cpufeatures 0.2.17",
  "opaque-debug",
  "universal-hash",
 ]
@@ -5508,7 +5517,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f5058ada175748e33390e40e872bd0fe59a19f265d0158daa551c5a88a76009c"
 dependencies = [
  "cfg-if",
- "cpufeatures",
+ "cpufeatures 0.2.17",
  "digest",
 ]
 
@@ -5519,7 +5528,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
 dependencies = [
  "cfg-if",
- "cpufeatures",
+ "cpufeatures 0.2.17",
  "digest",
 ]
 
@@ -5547,7 +5556,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
 dependencies = [
  "cfg-if",
- "cpufeatures",
+ "cpufeatures 0.2.17",
  "digest",
 ]
 

deltachat-rpc-client/tests/test_folders.py

@@ -8,11 +8,9 @@ from deltachat_rpc_client import EventType
 def test_moved_markseen(acfactory, direct_imap, log):
     """Test that message already moved to DeltaChat folder is marked as seen."""
     ac1 = acfactory.get_online_account()
-    ac1.set_config("bcc_self", "1")
 
     addr, password = acfactory.get_credentials()
     ac2 = acfactory.get_unconfigured_account()
-    ac2.set_config("bcc_self", "1")
     ac2.add_or_update_transport({"addr": addr, "password": password})
     ac2.bring_online()
 
@@ -62,8 +60,8 @@ def test_markseen_message_and_mdn(acfactory, direct_imap):
     for ac in ac1, ac2:
         ac.set_config("delete_server_after", "0")
 
-    # For ac1, we only want to test MDN.
-    ac2.set_config("bcc_self", "1")
+    # Do not send BCC to self, we only want to test MDN on ac1.
+    ac1.set_config("bcc_self", "0")
 
     acfactory.get_accepted_chat(ac1, ac2).send_text("hi")
     msg = ac2.wait_for_incoming_msg()

deltachat-rpc-client/tests/test_multidevice.py

@@ -79,6 +79,7 @@ def test_one_account_send_bcc_setting(acfactory, log, direct_imap):
 
     # now make sure we are sending message to ourselves too
     assert self_addr in ev.msg
+    assert self_addr in ev.msg
 
     # BCC-self messages are marked as seen by the sender device.
     while True:

deny.toml

@@ -33,7 +33,17 @@ ignore = [
     # We do not check CRL and cannot update rustls-webpki 0.102.8 
     # which is a dependency of iroh 0.35.0.
     # <https://rustsec.org/advisories/RUSTSEC-2026-0104>
-    "RUSTSEC-2026-0104"
+    "RUSTSEC-2026-0104",
+
+    # hickory-proto 0.25.2 unbounded loop in DNSSEC code.
+    # Dependency of iroh 0.35.0, cannot be updated as of 2026-05-02.
+    # <https://rustsec.org/advisories/RUSTSEC-2026-0118>
+    "RUSTSEC-2026-0118",
+
+    # hickory-proto 0.25.2 quadratic complexity issue.
+    # Dependency of iroh 0.35.0, cannot be updated as of 2026-05-02.
+    # <https://rustsec.org/advisories/RUSTSEC-2026-0119>
+    "RUSTSEC-2026-0119"
 ]
 
 [bans]

python/tests/test_1_online.py

@@ -160,7 +160,6 @@ def test_html_message(acfactory, lp):
 
 def test_webxdc_message(acfactory, data, lp):
     ac1, ac2 = acfactory.get_online_accounts(2)
-    ac2.set_config("bcc_self", "1")
     chat = acfactory.get_accepted_chat(ac1, ac2)
 
     lp.sec("ac1: prepare and send text message to ac2")
@@ -363,8 +362,6 @@ def test_send_and_receive_message_markseen(acfactory, lp):
     # make DC's life harder wrt to encodings
     ac1.set_config("displayname", "ä name")
 
-    ac2.set_config("bcc_self", "1")
-
     # clear any fresh device messages
     ac1.get_device_chat().mark_noticed()
     ac2.get_device_chat().mark_noticed()
@@ -505,8 +502,9 @@ def test_mdn_asymmetric(acfactory, lp):
     chat = ac1.create_chat(ac2)
     ac2.create_chat(ac1)
 
-    ac1.set_config("bcc_self", "1")
-    ac2.set_config("bcc_self", "1")
+    # make sure mdns are enabled (usually enabled by default already)
+    ac1.set_config("mdns_enabled", "1")
+    ac2.set_config("mdns_enabled", "1")
 
     lp.sec("sending text message from ac1 to ac2")
     msg_out = chat.send_text("message1")

src/imap.rs

@@ -2073,11 +2073,6 @@ async fn mark_seen_by_uid(
 /// Schedule marking the message as Seen on IMAP by adding all known IMAP messages corresponding to
 /// the given Message-ID to `imap_markseen` table.
 pub(crate) async fn markseen_on_imap_table(context: &Context, message_id: &str) -> Result<()> {
-    if !context.get_config_bool(Config::BccSelf).await?
-        || context.get_config_bool(Config::Bot).await?
-    {
-        return Ok(());
-    }
     context
         .sql
         .execute(

src/receive_imf.rs

@@ -1162,9 +1162,8 @@ async fn decide_chat_assignment(
         info!(context, "Message is an MDN (TRASH).");
         true
     } else if mime_parser.delivery_report.is_some() {
-        // Auto-marking DSNs as IMAP-seen should be avoided because the user may want to see them in
-        // another MUA.
         info!(context, "Message is a DSN (TRASH).");
+        markseen_on_imap_table(context, rfc724_mid).await.ok();
         true
     } else if mime_parser.get_header(HeaderDef::ChatEdit).is_some()
         || mime_parser.get_header(HeaderDef::ChatDelete).is_some()