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Release Notes for [release-2025-07-24\_03-31-base](https://github.com/dfinity/ic/tree/release-2025-07-24_03-31-base) (`615045e039c57ed842c689e49a07ab3de3a8a781`)
=================================================================================================================================================================

This release is based on changes since [release-2025-07-17\_11-23-base](https://dashboard.internetcomputer.org/release/143a635e2af0f574e1ea0f795f8754dfbd86c0c0) (`143a635e2af0f574e1ea0f795f8754dfbd86c0c0`).

Please note that some commits may be excluded from this release if they're not relevant, or not modifying the GuestOS image.
Additionally, descriptions of some changes might have been slightly modified to fit the release notes format.

To see a full list of commits added since last release, compare the revisions on [GitHub](https://github.com/dfinity/ic/compare/release-2025-07-17_11-23-base...release-2025-07-24_03-31-base).

Features:
---------

* [`b09c9b787`](https://github.com/dfinity/ic/commit/b09c9b787) Consensus,Interface: Cleanup how images are used as test dependencies ([#5912](https://github.com/dfinity/ic/pull/5912))
* [`fef839dd6`](https://github.com/dfinity/ic/commit/fef839dd6) Consensus,Interface: Extra progress logging for response body streaming in `file_downloader.rs` ([#6004](https://github.com/dfinity/ic/pull/6004))
* [`06621806f`](https://github.com/dfinity/ic/commit/06621806f) Execution,Interface: Add environment variables validation ([#5987](https://github.com/dfinity/ic/pull/5987))
* [`b3d032a80`](https://github.com/dfinity/ic/commit/b3d032a80) Interface(idkg): add `max_pre_signature_transcripts_in_creation` to `ChainKeyConfig` ([#5972](https://github.com/dfinity/ic/pull/5972))
* [`aa078c6c1`](https://github.com/dfinity/ic/commit/aa078c6c1) Interface(NRC): Implement RegistryClient with support for rewardable nodes computation ([#5869](https://github.com/dfinity/ic/pull/5869))
* [`7a809c0b3`](https://github.com/dfinity/ic/commit/7a809c0b3) Interface,Message Routing: New format for canister ranges in state tree ([#5907](https://github.com/dfinity/ic/pull/5907))
* [`70fe1d8f3`](https://github.com/dfinity/ic/commit/70fe1d8f3) Interface,Node(node): Run config.json bootstrap on each GuestOS boot ([#5978](https://github.com/dfinity/ic/pull/5978))
* [`3ae9f4e1d`](https://github.com/dfinity/ic/commit/3ae9f4e1d) Interface,Node: Implement mapped device for Upgrade Guest VMs ([#5913](https://github.com/dfinity/ic/pull/5913))
* [`3afd0111a`](https://github.com/dfinity/ic/commit/3afd0111a) Interface,Node: Load and store SEV certificate chain in HostOS and pass it to the Guest in the config ([#5802](https://github.com/dfinity/ic/pull/5802))

Bugfixes:
---------

* [`21ee6eb49`](https://github.com/dfinity/ic/commit/21ee6eb49) Consensus,Interface: Replace logging helpers with macros in `file_downloader.rs` to preserve call-site metadata ([#5998](https://github.com/dfinity/ic/pull/5998))
* [`1edecd12c`](https://github.com/dfinity/ic/commit/1edecd12c) Consensus,Interface(orchestrator): properly log some messages ([#5992](https://github.com/dfinity/ic/pull/5992))
* [`fff7fd5e2`](https://github.com/dfinity/ic/commit/fff7fd5e2) Execution,Interface: port Haskell tests of canister version to Rust and fix one edge case in mgmt canister ([#5973](https://github.com/dfinity/ic/pull/5973))
* [`4bb92583b`](https://github.com/dfinity/ic/commit/4bb92583b) Execution,Interface,Message Routing: Check input queue before canister migration ([#6022](https://github.com/dfinity/ic/pull/6022))

Chores:
-------

* [`abd085a63`](https://github.com/dfinity/ic/commit/abd085a63) Consensus,Interface: Add more Http outcalls logs ([#5985](https://github.com/dfinity/ic/pull/5985))
* [`972668c31`](https://github.com/dfinity/ic/commit/972668c31) Consensus,Interface: inline dependencies in bitcoin crates ([#5997](https://github.com/dfinity/ic/pull/5997))
* [`f60a8a106`](https://github.com/dfinity/ic/commit/f60a8a106) Consensus,Interface: Implement `ErrorReproducibility` for crypto errors occurring during IDKG payload validation ([#5964](https://github.com/dfinity/ic/pull/5964))
* [`a058e8936`](https://github.com/dfinity/ic/commit/a058e8936) Consensus,Interface: Implement `From<MasterPublicKeyId>` for `AlgorithmId` ([#5962](https://github.com/dfinity/ic/pull/5962))
* [`1c1f28561`](https://github.com/dfinity/ic/commit/1c1f28561) Execution,Interface: consolidate cycles and memory usage checks in management canister ([#6021](https://github.com/dfinity/ic/pull/6021))
* [`00ba5cb4f`](https://github.com/dfinity/ic/commit/00ba5cb4f) Execution,Interface: Remove deprecated compute\_initial\_i\_dkg\_dealings endpoint Pt. 2 ([#6001](https://github.com/dfinity/ic/pull/6001))
* [`6ff466687`](https://github.com/dfinity/ic/commit/6ff466687) Execution,Interface: Upgrade wasmtime to 34.0.1 ([#5817](https://github.com/dfinity/ic/pull/5817))
* [`8293fceed`](https://github.com/dfinity/ic/commit/8293fceed) Owners: drop nightly toolchain ([#5979](https://github.com/dfinity/ic/pull/5979))
* [`7d986351d`](https://github.com/dfinity/ic/commit/7d986351d) Owners: bump rules\_rust ([#5976](https://github.com/dfinity/ic/pull/5976))
* [`e6024e781`](https://github.com/dfinity/ic/commit/e6024e781) Node: Create guestos\_config\_version metric ([#5703](https://github.com/dfinity/ic/pull/5703))

Refactoring:
------------

* [`4d30f6781`](https://github.com/dfinity/ic/commit/4d30f6781) Interface,Node(node): Add rust-ini parser ([#5974](https://github.com/dfinity/ic/pull/5974))

---------------------------------------
Full list of changes (including the ones that are not relevant to GuestOS) can be found on [GitHub](https://github.com/dfinity/dre/blob/55d2c372f70a42288d3eef82dc2896117c8d1b23/replica-releases/615045e039c57ed842c689e49a07ab3de3a8a781.md).

# IC-OS Verification

To build and verify the IC-OS GuestOS disk image, after installing curl if necessary (`sudo apt install curl`), run:

```
# From https://github.com/dfinity/ic#verifying-releases
curl -fsSL https://raw.githubusercontent.com/dfinity/ic/master/ci/tools/repro-check | python3 - -c 615045e039c57ed842c689e49a07ab3de3a8a781 --guestos
```

The two SHA256 sums printed above from a) the downloaded CDN image and b) the locally built image, must be identical, and must match the SHA256 from the payload of the NNS proposal.

While not required for this NNS proposal, as we are only electing a new GuestOS version here, you have the option to verify the build reproducibility of the HostOS by passing `--hostos` to the script above instead of `--guestos`, or the SetupOS by passing `--setupos`.


Elect new IC/GuestOS revision (commit 615045e)