diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a206271370..1a0c1e14a1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -194,7 +194,7 @@ jobs:
       uses: actions/checkout@v4
       with:
         repository: 'signalapp/Signal-Message-Backup-Tests'
-        ref: '93a7d29527cb33e6bf23bc56fbf74d62cf682001'
+        ref: '2e22808478e08c72e11a7483900c9af6c9b1acf4'
         path: 'backup-integration-tests'
 
     - run: xvfb-run --auto-servernum npm run test-electron
diff --git a/ACKNOWLEDGMENTS.md b/ACKNOWLEDGMENTS.md
index 923492fd45..48592ee98a 100644
--- a/ACKNOWLEDGMENTS.md
+++ b/ACKNOWLEDGMENTS.md
@@ -4821,7 +4821,7 @@ You should also get your employer (if you work as a programmer) or school, if an
 
 ```
 
-## libcrux-intrinsics 0.0.2-alpha.3, libcrux-ml-kem 0.0.2-alpha.3, libcrux-platform 0.0.2-pre.2, libcrux-sha3 0.0.2-alpha.3
+## libcrux-intrinsics 0.0.2-beta.2, libcrux-ml-kem 0.0.2-alpha.3, libcrux-platform 0.0.2-pre.2, libcrux-sha3 0.0.2-beta.2
 
 ```
                                  Apache License
@@ -5016,7 +5016,7 @@ You should also get your employer (if you work as a programmer) or school, if an
    limitations under the License.
 ```
 
-## ryu 1.0.18
+## ryu 1.0.19
 
 ```
                               Apache License
@@ -5198,7 +5198,7 @@ END OF TERMS AND CONDITIONS
 
 ```
 
-## debugid 0.8.0, prost-build 0.13.2, prost-derive 0.13.2, prost-types 0.13.2, prost 0.13.2
+## debugid 0.8.0, prost-build 0.13.4, prost-derive 0.13.4, prost-types 0.13.4, prost 0.13.4
 
 ```
                               Apache License
@@ -5427,7 +5427,7 @@ limitations under the License.
 
 ```
 
-## arrayref 0.3.8
+## arrayref 0.3.9
 
 ```
 Copyright (c) 2015 David Roundy <roundyd@physics.oregonstate.edu>
@@ -5697,7 +5697,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 ```
 
-## encoding_rs 0.8.34
+## encoding_rs 0.8.35
 
 ```
 Copyright © WHATWG (Apple, Google, Mozilla, Microsoft).
@@ -5930,7 +5930,7 @@ express Statement of Purpose.
 
 ```
 
-## libloading 0.8.5
+## libloading 0.8.6
 
 ```
 Copyright © 2015, Simonas Kazlauskas
@@ -5973,7 +5973,7 @@ third-party/chromium/LICENSE.
 
 ```
 
-## windows-core 0.52.0, windows-sys 0.45.0, windows-sys 0.52.0, windows-sys 0.59.0, windows-targets 0.42.2, windows-targets 0.48.5, windows-targets 0.52.6, windows_aarch64_msvc 0.42.2, windows_aarch64_msvc 0.48.5, windows_aarch64_msvc 0.52.6, windows_x86_64_gnu 0.48.5, windows_x86_64_gnu 0.52.6, windows_x86_64_msvc 0.42.2, windows_x86_64_msvc 0.48.5, windows_x86_64_msvc 0.52.6
+## windows-core 0.52.0, windows-sys 0.45.0, windows-sys 0.52.0, windows-sys 0.59.0, windows-targets 0.42.2, windows-targets 0.52.6, windows_aarch64_msvc 0.42.2, windows_aarch64_msvc 0.52.6, windows_x86_64_gnu 0.52.6, windows_x86_64_msvc 0.42.2, windows_x86_64_msvc 0.52.6
 
 ```
     MIT License
@@ -6095,7 +6095,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## core-foundation-sys 0.8.7, core-foundation 0.9.4
+## core-foundation-sys 0.8.7, core-foundation 0.10.0
 
 ```
 Copyright (c) 2012-2013 Mozilla Foundation
@@ -6214,7 +6214,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## backtrace 0.3.74, cc 1.1.18, cfg-if 1.0.0, cmake 0.1.48, flate2 1.0.33, jobserver 0.1.32, openssl-probe 0.1.5, pkg-config 0.3.31, rustc-demangle 0.1.24, scoped-tls 1.0.1, socket2 0.5.7
+## backtrace 0.3.74, cc 1.2.13, cfg-if 1.0.0, cmake 0.1.48, flate2 1.0.35, jobserver 0.1.32, openssl-probe 0.1.6, pkg-config 0.3.31, rustc-demangle 0.1.24, scoped-tls 1.0.1, socket2 0.5.8
 
 ```
 Copyright (c) 2014 Alex Crichton
@@ -6277,7 +6277,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## libz-sys 1.1.20
+## libz-sys 1.1.21
 
 ```
 Copyright (c) 2014 Alex Crichton
@@ -6309,7 +6309,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## mio 1.0.2
+## mio 1.0.3
 
 ```
 Copyright (c) 2014 Carl Lerche and other MIO contributors
@@ -6334,7 +6334,7 @@ THE SOFTWARE.
 
 ```
 
-## errno 0.3.9
+## errno 0.3.10
 
 ```
 Copyright (c) 2014 Chris Wong
@@ -6423,7 +6423,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## bitflags 2.6.0, glob 0.3.1, log 0.4.22, num-bigint 0.4.6, num-derive 0.4.2, num-integer 0.1.46, num-traits 0.2.19, range-map 0.2.0, regex-automata 0.4.7, regex-syntax 0.8.4, regex 1.10.6
+## bitflags 2.8.0, glob 0.3.2, log 0.4.25, num-derive 0.4.2, num-integer 0.1.46, num-traits 0.2.19, range-map 0.2.0, regex-automata 0.4.9, regex-syntax 0.8.5, regex 1.11.1
 
 ```
 Copyright (c) 2014 The Rust Project Developers
@@ -6454,7 +6454,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## uuid 1.10.0
+## uuid 1.13.1
 
 ```
 Copyright (c) 2014 The Rust Project Developers
@@ -6486,7 +6486,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## unicase 2.7.0
+## unicase 2.8.1
 
 ```
 Copyright (c) 2014-2017 Sean McArthur
@@ -6564,7 +6564,7 @@ THE SOFTWARE.
 
 ```
 
-## libc 0.2.158
+## libc 0.2.169
 
 ```
 Copyright (c) 2014-2020 The Rust Project Developers
@@ -6595,7 +6595,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## hyper 0.14.30, hyper 1.4.1
+## hyper 0.14.32
 
 ```
 Copyright (c) 2014-2021 Sean McArthur
@@ -6620,6 +6620,31 @@ THE SOFTWARE.
 
 ```
 
+## hyper 1.6.0
+
+```
+Copyright (c) 2014-2025 Sean McArthur
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+```
+
 ## either 1.13.0, itertools 0.13.0, petgraph 0.6.5
 
 ```
@@ -6676,7 +6701,7 @@ THE SOFTWARE.
 
 ```
 
-## anstyle-wincon 3.0.4
+## anstyle-wincon 3.0.7
 
 ```
 Copyright (c) 2015 Josh Triplett, 2022 The rust-cli Developers
@@ -6701,7 +6726,7 @@ SOFTWARE.
 
 ```
 
-## tempfile 3.12.0
+## tempfile 3.16.0
 
 ```
 Copyright (c) 2015 Steven Allen
@@ -6732,7 +6757,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## object 0.36.4
+## object 0.36.7
 
 ```
 Copyright (c) 2015 The Gimli Developers
@@ -6763,7 +6788,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## gimli 0.31.0, heck 0.5.0
+## gimli 0.31.1, heck 0.5.0
 
 ```
 Copyright (c) 2015 The Rust Project Developers
@@ -6794,7 +6819,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## procfs-core 0.16.0
+## procfs-core 0.17.0
 
 ```
 Copyright (c) 2015 The procfs Developers
@@ -6869,7 +6894,7 @@ THE SOFTWARE.
 
 ```
 
-## schannel 0.1.24
+## schannel 0.1.27
 
 ```
 Copyright (c) 2015 steffengy
@@ -7084,10 +7109,10 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## httparse 1.9.4
+## httparse 1.10.0
 
 ```
-Copyright (c) 2015-2024 Sean McArthur
+Copyright (c) 2015-2025 Sean McArthur
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -7110,7 +7135,7 @@ THE SOFTWARE.
 
 ```
 
-## futures-channel 0.3.31, futures-core 0.3.31, futures-executor 0.3.30, futures-io 0.3.31, futures-macro 0.3.31, futures-sink 0.3.31, futures-task 0.3.31, futures-util 0.3.31, futures 0.3.30
+## futures-channel 0.3.31, futures-core 0.3.31, futures-executor 0.3.31, futures-io 0.3.31, futures-macro 0.3.31, futures-sink 0.3.31, futures-task 0.3.31, futures-util 0.3.31, futures 0.3.31
 
 ```
 Copyright (c) 2016 Alex Crichton
@@ -7142,7 +7167,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## hashbrown 0.14.5
+## hashbrown 0.15.2
 
 ```
 Copyright (c) 2016 Amanieu d'Antras
@@ -7204,7 +7229,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## intmap 3.0.0
+## intmap 3.1.0
 
 ```
 Copyright (c) 2016 Jesper Axelsson
@@ -7247,7 +7272,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## anstyle-parse 0.2.5
+## anstyle-parse 0.2.6
 
 ```
 Copyright (c) 2016 Joe Wilm and individual contributors
@@ -7278,7 +7303,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## rustls-native-certs 0.7.3, rustls-pemfile 2.1.3, rustls 0.22.4, rustls 0.23.20
+## rustls-native-certs 0.8.1, rustls-pemfile 2.2.0, rustls 0.22.4, rustls 0.23.23
 
 ```
 Copyright (c) 2016 Joseph Birr-Pixton <jpixton@gmail.com>
@@ -7516,7 +7541,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## indexmap 2.5.0
+## indexmap 2.7.1
 
 ```
 Copyright (c) 2016--2017
@@ -7578,7 +7603,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## addr2line 0.24.1
+## addr2line 0.24.2
 
 ```
 Copyright (c) 2016-2018 The gimli Developers
@@ -7929,7 +7954,7 @@ SOFTWARE.
 
 ```
 
-## h2 0.3.26, h2 0.4.6
+## h2 0.3.26, h2 0.4.7
 
 ```
 Copyright (c) 2017 h2 authors
@@ -7960,7 +7985,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## http 0.2.12, http 1.1.0
+## http 0.2.12, http 1.2.0
 
 ```
 Copyright (c) 2017 http-rs authors
@@ -8085,7 +8110,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## bytes 1.7.1
+## bytes 1.10.0
 
 ```
 Copyright (c) 2018 Carl Lerche
@@ -8116,7 +8141,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## autocfg 1.3.0
+## autocfg 1.4.0
 
 ```
 Copyright (c) 2018 Josh Stone
@@ -8413,7 +8438,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## getrandom 0.2.15
+## getrandom 0.2.15, getrandom 0.3.1
 
 ```
 Copyright (c) 2018-2024 The rust-random Project Developers
@@ -8538,7 +8563,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## protobuf-codegen 3.5.1, protobuf-json-mapping 3.5.1, protobuf-support 3.5.1, protobuf 3.5.1
+## protobuf-codegen 3.7.1, protobuf-json-mapping 3.7.1, protobuf-support 3.7.1, protobuf 3.7.1
 
 ```
 Copyright (c) 2019 Stepan Koltsov
@@ -8563,7 +8588,7 @@ OR OTHER DEALINGS IN THE SOFTWARE.
 
 ```
 
-## protobuf-parse 3.5.1
+## protobuf-parse 3.7.1
 
 ```
 Copyright (c) 2019 Stepan Koltsov
@@ -8719,7 +8744,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## tracing-attributes 0.1.27, tracing-core 0.1.32, tracing 0.1.40
+## tracing-attributes 0.1.28, tracing-core 0.1.33, tracing 0.1.41
 
 ```
 Copyright (c) 2019 Tokio Contributors
@@ -8905,7 +8930,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## iana-time-zone 0.1.60
+## iana-time-zone 0.1.61
 
 ```
 Copyright (c) 2020 Andrew D. Straw
@@ -8999,37 +9024,6 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## cpufeatures 0.2.14
-
-```
-Copyright (c) 2020 The RustCrypto Project Developers
-
-Permission is hereby granted, free of charge, to any
-person obtaining a copy of this software and associated
-documentation files (the "Software"), to deal in the
-Software without restriction, including without
-limitation the rights to use, copy, modify, merge,
-publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software
-is furnished to do so, subject to the following
-conditions:
-
-The above copyright notice and this permission notice
-shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
-ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
-TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
-PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
-SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
-OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
-IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.
-
-```
-
 ## memmap2 0.9.5
 
 ```
@@ -9093,6 +9087,37 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
+## cpufeatures 0.2.17
+
+```
+Copyright (c) 2020-2025 The RustCrypto Project Developers
+
+Permission is hereby granted, free of charge, to any
+person obtaining a copy of this software and associated
+documentation files (the "Software"), to deal in the
+Software without restriction, including without
+limitation the rights to use, copy, modify, merge,
+publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software
+is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice
+shall be included in all copies or substantial portions
+of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
+
+```
+
 ## crypto-common 0.1.6
 
 ```
@@ -9237,7 +9262,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## anstyle 1.0.8
+## anstyle 1.0.10
 
 ```
 Copyright (c) 2022 The rust-cli Developers
@@ -9287,7 +9312,7 @@ SOFTWARE.
 
 ```
 
-## rustls-pki-types 1.10.1
+## rustls-pki-types 1.11.0
 
 ```
 Copyright (c) 2023 Dirkjan Ochtman <dirkjan@ochtman.nl>
@@ -9368,7 +9393,7 @@ SOFTWARE.
 
 ```
 
-## hyper-util 0.1.8
+## hyper-util 0.1.10
 
 ```
 Copyright (c) 2023 Sean McArthur
@@ -9393,7 +9418,7 @@ THE SOFTWARE.
 
 ```
 
-## time 0.3.36
+## time 0.3.37
 
 ```
 Copyright (c) 2024 Jacob Pratt et al.
@@ -9418,7 +9443,7 @@ SOFTWARE.
 
 ```
 
-## anstream 0.6.15, anstyle-query 1.1.1, clap 4.5.17, colorchoice 1.0.2, env_filter 0.1.2, env_logger 0.11.5, is_terminal_polyfill 1.70.1, toml_datetime 0.6.8, toml_edit 0.22.20
+## anstream 0.6.18, anstyle-query 1.1.2, clap 4.5.29, colorchoice 1.0.3, env_filter 0.1.3, env_logger 0.11.6, is_terminal_polyfill 1.70.1, toml_datetime 0.6.8, toml_edit 0.22.24
 
 ```
 Copyright (c) Individual contributors
@@ -9443,7 +9468,7 @@ SOFTWARE.
 
 ```
 
-## clap-stdin 0.3.0
+## clap-stdin 0.6.0
 
 ```
 Copyright (c) Matthew Wood
@@ -9607,7 +9632,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## encoding_rs 0.8.34, utf16_iter 1.0.5, utf8_iter 1.0.4, write16 1.0.0
+## encoding_rs 0.8.35, utf16_iter 1.0.5, utf8_iter 1.0.4, write16 1.0.0
 
 ```
 Copyright Mozilla Foundation
@@ -9638,7 +9663,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## breakpad-symbols 0.21.2, minidump-common 0.21.2, minidump-processor 0.21.2, minidump-unwind 0.21.2, minidump 0.21.2
+## breakpad-symbols 0.22.2, minidump-common 0.22.2, minidump-processor 0.22.1, minidump-unwind 0.22.2, minidump 0.22.2
 
 ```
 MIT License
@@ -9719,33 +9744,6 @@ SOFTWARE.
 
 ```
 
-## miniz_oxide 0.8.0
-
-```
-MIT License
-
-Copyright (c) 2017 Frommi
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-```
-
 ## smart-default 0.7.1
 
 ```
@@ -9935,7 +9933,7 @@ SOFTWARE.
 
 ```
 
-## strum 0.26.3, strum_macros 0.26.4
+## strum 0.27.0, strum_macros 0.27.0
 
 ```
 MIT License
@@ -9962,7 +9960,7 @@ SOFTWARE.
 
 ```
 
-## tokio-macros 2.4.0
+## tokio-macros 2.5.0
 
 ```
 MIT License
@@ -10205,7 +10203,7 @@ SOFTWARE.
 
 ```
 
-## rustls-platform-verifier-android 0.1.1, rustls-platform-verifier 0.4.0
+## rustls-platform-verifier-android 0.1.1, rustls-platform-verifier 0.5.0
 
 ```
 MIT License
@@ -10274,7 +10272,7 @@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLI
 
 ```
 
-## tokio-stream 0.1.16, tokio-util 0.7.12, tokio 1.40.0
+## tokio-stream 0.1.17, tokio-util 0.7.13, tokio 1.43.0
 
 ```
 MIT License
@@ -10308,6 +10306,37 @@ MIT License
 
 Copyright (c) [year] [fullname]
 
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+```
+
+## miniz_oxide 0.8.4
+
+```
+MIT License
+
+Copyright 2013-2014 RAD Game Tools and Valve Software
+Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
+Copyright (c) 2017 Frommi
+Copyright (c) 2017-2024 oyvindln
+
+
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
@@ -10353,7 +10382,7 @@ SOFTWARE.
 
 ```
 
-## curve25519-dalek-derive 0.1.1, adler2 2.0.0, anyhow 1.0.88, async-trait 0.1.82, atomic-waker 1.1.2, displaydoc 0.2.5, dyn-clone 1.0.17, fastrand 2.1.1, home 0.5.9, itoa 1.0.11, linkme-impl 0.3.28, linkme 0.3.28, linux-raw-sys 0.4.14, minimal-lexical 0.2.1, num_enum 0.7.3, num_enum_derive 0.7.3, once_cell 1.19.0, paste 1.0.15, pin-project-internal 1.1.5, pin-project-lite 0.2.14, pin-project 1.1.5, prettyplease 0.2.22, proc-macro-crate 3.2.0, proc-macro2 1.0.86, quote 1.0.37, rustc-hash 1.1.0, rustix 0.38.37, rustversion 1.0.17, semver 1.0.23, send_wrapper 0.6.0, serde 1.0.210, serde_derive 1.0.210, serde_json 1.0.128, syn-mid 0.6.0, syn 1.0.109, syn 2.0.77, thiserror-impl 1.0.63, thiserror 1.0.63, unicode-ident 1.0.13, utf-8 0.7.6
+## curve25519-dalek-derive 0.1.1, adler2 2.0.0, anyhow 1.0.95, async-trait 0.1.86, atomic-waker 1.1.2, displaydoc 0.2.5, dyn-clone 1.0.18, fastrand 2.3.0, home 0.5.9, itoa 1.0.14, linkme-impl 0.3.31, linkme 0.3.31, linux-raw-sys 0.4.15, minimal-lexical 0.2.1, num_enum 0.7.3, num_enum_derive 0.7.3, once_cell 1.20.3, paste 1.0.15, pin-project-internal 1.1.9, pin-project-lite 0.2.16, pin-project 1.1.9, prettyplease 0.2.29, proc-macro-crate 3.2.0, proc-macro2 1.0.93, quote 1.0.38, rustc-hash 1.1.0, rustix 0.38.44, rustversion 1.0.19, semver 1.0.25, send_wrapper 0.6.0, serde 1.0.217, serde_derive 1.0.217, serde_json 1.0.138, syn-mid 0.6.0, syn 2.0.98, thiserror-impl 1.0.69, thiserror-impl 2.0.11, thiserror 1.0.69, thiserror 2.0.11, unicode-ident 1.0.16, utf-8 0.7.6
 
 ```
 Permission is hereby granted, free of charge, to any
@@ -10382,7 +10411,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## winnow 0.6.18
+## winnow 0.7.2
 
 ```
 Permission is hereby granted, free of charge, to any person obtaining
@@ -10485,7 +10514,7 @@ SOFTWARE.
 
 ```
 
-## chrono 0.4.38
+## chrono 0.4.39
 
 ```
 The MIT License (MIT)
@@ -10649,7 +10678,7 @@ THE SOFTWARE.
 
 ```
 
-## security-framework-sys 2.11.1, security-framework 2.11.1
+## security-framework-sys 2.14.0, security-framework 3.2.0
 
 ```
 The MIT License (MIT)
@@ -10675,7 +10704,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 ```
 
-## data-encoding 2.6.0
+## data-encoding 2.8.0
 
 ```
 The MIT License (MIT)
@@ -10703,7 +10732,7 @@ SOFTWARE.
 
 ```
 
-## clap_builder 4.5.17, clap_derive 4.5.13, clap_lex 0.7.2
+## clap_builder 4.5.29, clap_derive 4.5.28, clap_lex 0.7.4
 
 ```
 The MIT License (MIT)
@@ -10730,7 +10759,7 @@ SOFTWARE.
 
 ```
 
-## derive_more-impl 1.0.0, derive_more 0.99.18, derive_more 1.0.0
+## derive_more-impl 1.0.0, derive_more 0.99.19, derive_more 1.0.0
 
 ```
 The MIT License (MIT)
@@ -10757,7 +10786,7 @@ SOFTWARE.
 
 ```
 
-## jni 0.19.0, jni 0.21.1
+## jni 0.21.1
 
 ```
 The MIT License (MIT)
@@ -10838,7 +10867,7 @@ THE SOFTWARE.
 
 ```
 
-## async-compression 0.4.12
+## async-compression 0.4.18
 
 ```
 The MIT License (MIT)
@@ -10898,7 +10927,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## crossbeam-deque 0.8.5, crossbeam-epoch 0.9.18, crossbeam-utils 0.8.20
+## crossbeam-deque 0.8.6, crossbeam-epoch 0.9.18, crossbeam-utils 0.8.21
 
 ```
 The MIT License (MIT)
@@ -10931,7 +10960,7 @@ DEALINGS IN THE SOFTWARE.
 
 ```
 
-## dyn-clonable-impl 0.9.0, dyn-clonable 0.9.0
+## dyn-clonable-impl 0.9.2, dyn-clonable 0.9.2
 
 ```
 The MIT License (MIT)
@@ -11150,7 +11179,7 @@ SOFTWARE.
  */
 ```
 
-## icu_collections 1.5.0, icu_locid 1.5.0, icu_locid_transform 1.5.0, icu_locid_transform_data 1.5.0, icu_normalizer 1.5.0, icu_normalizer_data 1.5.0, icu_properties 1.5.1, icu_properties_data 1.5.0, icu_provider 1.5.0, icu_provider_macros 1.5.0, litemap 0.7.4, tinystr 0.7.6, writeable 0.5.5, yoke-derive 0.7.5, yoke 0.7.5, zerofrom-derive 0.1.5, zerofrom 0.1.5, zerovec-derive 0.10.3, zerovec 0.10.4
+## icu_collections 1.5.0, icu_locid 1.5.0, icu_locid_transform 1.5.0, icu_locid_transform_data 1.5.0, icu_normalizer 1.5.0, icu_normalizer_data 1.5.0, icu_properties 1.5.1, icu_properties_data 1.5.0, icu_provider 1.5.0, icu_provider_macros 1.5.0, litemap 0.7.4, tinystr 0.7.6, unicode-ident 1.0.16, writeable 0.5.5, yoke-derive 0.7.5, yoke 0.7.5, zerofrom-derive 0.1.5, zerofrom 0.1.5, zerovec-derive 0.10.3, zerovec 0.10.4
 
 ```
 UNICODE LICENSE V3
@@ -11195,58 +11224,6 @@ authorization of the copyright holder.
 
 ```
 
-## unicode-ident 1.0.13
-
-```
-UNICODE, INC. LICENSE AGREEMENT - DATA FILES AND SOFTWARE
-
-See Terms of Use <https://www.unicode.org/copyright.html>
-for definitions of Unicode Inc.’s Data Files and Software.
-
-NOTICE TO USER: Carefully read the following legal agreement.
-BY DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING UNICODE INC.'S
-DATA FILES ("DATA FILES"), AND/OR SOFTWARE ("SOFTWARE"),
-YOU UNEQUIVOCALLY ACCEPT, AND AGREE TO BE BOUND BY, ALL OF THE
-TERMS AND CONDITIONS OF THIS AGREEMENT.
-IF YOU DO NOT AGREE, DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE
-THE DATA FILES OR SOFTWARE.
-
-COPYRIGHT AND PERMISSION NOTICE
-
-Copyright © 1991-2022 Unicode, Inc. All rights reserved.
-Distributed under the Terms of Use in https://www.unicode.org/copyright.html.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the Unicode data files and any associated documentation
-(the "Data Files") or Unicode software and any associated documentation
-(the "Software") to deal in the Data Files or Software
-without restriction, including without limitation the rights to use,
-copy, modify, merge, publish, distribute, and/or sell copies of
-the Data Files or Software, and to permit persons to whom the Data Files
-or Software are furnished to do so, provided that either
-(a) this copyright and permission notice appear with all copies
-of the Data Files or Software, or
-(b) this copyright and permission notice appear in associated
-Documentation.
-
-THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF
-ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
-WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT OF THIRD PARTY RIGHTS.
-IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS
-NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL
-DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
-DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
-TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
-PERFORMANCE OF THE DATA FILES OR SOFTWARE.
-
-Except as contained in this notice, the name of a copyright holder
-shall not be used in advertising or otherwise to promote the sale,
-use or other dealings in these Data Files or Software without prior
-written authorization of the copyright holder.
-
-```
-
 ## Kyber Patent License
 
 <https://csrc.nist.gov/csrc/media/Projects/post-quantum-cryptography/documents/selected-algos-2022/nist-pqc-license-summary-and-excerpts.pdf>
diff --git a/package-lock.json b/package-lock.json
index 6d168bfef9..6c6689ac17 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "@react-aria/utils": "3.25.3",
         "@react-spring/web": "9.7.5",
         "@signalapp/better-sqlite3": "9.0.11",
-        "@signalapp/libsignal-client": "0.66.1",
+        "@signalapp/libsignal-client": "0.66.2",
         "@signalapp/quill-cjs": "2.1.2",
         "@signalapp/ringrtc": "2.49.5",
         "@types/fabric": "4.5.3",
@@ -6471,9 +6471,9 @@
       }
     },
     "node_modules/@signalapp/libsignal-client": {
-      "version": "0.66.1",
-      "resolved": "https://registry.npmjs.org/@signalapp/libsignal-client/-/libsignal-client-0.66.1.tgz",
-      "integrity": "sha512-rxKykj9DNBcMucAAGJgqPVjVJDLN31cwNvc9F32+wNJns1gskKgWe9o8dgr9Fg9SrMJrJu/uKppXDU92UXGjoA==",
+      "version": "0.66.2",
+      "resolved": "https://registry.npmjs.org/@signalapp/libsignal-client/-/libsignal-client-0.66.2.tgz",
+      "integrity": "sha512-zwgU0LXIJjJNVBxJWnjbJN1+gIUJ+eY+BnqIP1d0751Sq1zy5VMHs+/5nmEyVGNn6ptD0qseYXkxtr/XLs07Lw==",
       "hasInstallScript": true,
       "license": "AGPL-3.0-only",
       "dependencies": {
diff --git a/package.json b/package.json
index f27240fd6f..85e043837f 100644
--- a/package.json
+++ b/package.json
@@ -113,7 +113,7 @@
     "@react-aria/utils": "3.25.3",
     "@react-spring/web": "9.7.5",
     "@signalapp/better-sqlite3": "9.0.11",
-    "@signalapp/libsignal-client": "0.66.1",
+    "@signalapp/libsignal-client": "0.66.2",
     "@signalapp/quill-cjs": "2.1.2",
     "@signalapp/ringrtc": "2.49.5",
     "@types/fabric": "4.5.3",
diff --git a/protos/Backups.proto b/protos/Backups.proto
index e93f29aeae..9ea3e5a02f 100644
--- a/protos/Backups.proto
+++ b/protos/Backups.proto
@@ -178,6 +178,9 @@ message Contact {
   IdentityState identityState = 15;
   Name nickname = 16; // absent iff both `given` and `family` are empty
   string note = 17;
+  string systemGivenName = 18;
+  string systemFamilyName = 19;
+  string systemNickname = 20;
 }
 
 message Group {
diff --git a/ts/services/backups/export.ts b/ts/services/backups/export.ts
index 302d7d20be..e64110004d 100644
--- a/ts/services/backups/export.ts
+++ b/ts/services/backups/export.ts
@@ -875,6 +875,9 @@ export class BackupExportStream extends Readable {
         profileSharing: convo.profileSharing,
         profileGivenName: convo.profileName,
         profileFamilyName: convo.profileFamilyName,
+        systemFamilyName: convo.systemFamilyName,
+        systemGivenName: convo.systemGivenName,
+        systemNickname: convo.systemNickname,
         hideStory: convo.hideStory === true,
         identityKey: identityKey?.publicKey || null,
 
diff --git a/ts/services/backups/import.ts b/ts/services/backups/import.ts
index 1ab2445b52..0845e003ca 100644
--- a/ts/services/backups/import.ts
+++ b/ts/services/backups/import.ts
@@ -924,6 +924,9 @@ export class BackupImportStream extends Writable {
       profileSharing: contact.profileSharing === true,
       profileName: dropNull(contact.profileGivenName),
       profileFamilyName: dropNull(contact.profileFamilyName),
+      systemGivenName: dropNull(contact.systemGivenName),
+      systemFamilyName: dropNull(contact.systemFamilyName),
+      systemNickname: dropNull(contact.systemNickname),
       hideStory: contact.hideStory === true,
       username: dropNull(contact.username),
       expireTimerVersion: 1,
diff --git a/ts/test-electron/backup/conversations_test.ts b/ts/test-electron/backup/conversations_test.ts
index 44d357fee4..3109174f9e 100644
--- a/ts/test-electron/backup/conversations_test.ts
+++ b/ts/test-electron/backup/conversations_test.ts
@@ -2,12 +2,16 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 
 import { assert } from 'chai';
+import { randomBytes } from 'crypto';
 import { getRandomBytes } from '../../Crypto';
 import * as Bytes from '../../Bytes';
 import { setupBasics, symmetricRoundtripHarness } from './helpers';
 import { loadAllAndReinitializeRedux } from '../../services/allLoaders';
 import { deriveGroupID, deriveGroupSecretParams } from '../../util/zkgroup';
 import { DataWriter } from '../../sql/Client';
+import { generateAci, generatePni } from '../../types/ServiceId';
+import type { ConversationAttributesType } from '../../model-types';
+import { strictAssert } from '../../util/assert';
 
 function getGroupTestInfo() {
   const masterKey = getRandomBytes(32);
@@ -28,6 +32,48 @@ describe('backup/conversations', () => {
     await loadAllAndReinitializeRedux();
   });
 
+  it('roundtrips 1:1 conversations', async () => {
+    const fields: Partial<ConversationAttributesType> = {
+      systemGivenName: 'systemGivenName',
+      systemFamilyName: 'systemFamilyName',
+      systemNickname: 'systemNickname',
+      profileName: 'profileName',
+      profileFamilyName: 'profileFamilyName',
+      nicknameGivenName: 'nicknameGivenName',
+      nicknameFamilyName: 'nicknameFamilyName',
+      hideStory: true,
+      username: 'username.12',
+      muteExpiresAt: Number.MAX_SAFE_INTEGER,
+      note: 'note',
+      e164: '+16175550000',
+      pni: generatePni(),
+      removalStage: 'justNotification',
+      firstUnregisteredAt: Date.now(),
+      discoveredUnregisteredAt: Date.now(),
+      profileKey: Bytes.toBase64(randomBytes(32)),
+      profileSharing: true,
+    };
+
+    const aci = generateAci();
+    await window.ConversationController.getOrCreateAndWait(aci, 'private', {
+      ...fields,
+      active_at: 1,
+    });
+
+    await symmetricRoundtripHarness([]);
+
+    const convoAfter = window.ConversationController.get(aci);
+    strictAssert(convoAfter, 'convo is roundtripped');
+
+    for (const [key, value] of Object.entries(fields)) {
+      assert.strictEqual(
+        (convoAfter.attributes as Record<string, unknown>)[key],
+        value,
+        `conversation.${key} does not match`
+      );
+    }
+  });
+
   it('roundtrips block state on group conversations', async () => {
     const blockedGroupInfo = getGroupTestInfo();
     await window.ConversationController.getOrCreateAndWait(