diff --git a/.config/nextest.toml b/.config/nextest.toml
new file mode 100644
index 00000000000..b701259fc2a
--- /dev/null
+++ b/.config/nextest.toml
@@ -0,0 +1,113 @@
+# This is the default config used by nextest. It is embedded in the binary at
+# build time. It may be used as a template for .config/nextest.toml.
+
+[store]
+# The directory under the workspace root at which nextest-related files are
+# written. Profile-specific storage is currently written to dir/<profile-name>.
+dir = "target/nextest"
+
+# This section defines the default nextest profile. Custom profiles are layered
+# on top of the default profile.
+[profile.default]
+# "retries" defines the number of times a test should be retried. If set to a
+# non-zero value, tests that succeed on a subsequent attempt will be marked as
+# non-flaky. Can be overridden through the `--retries` option.
+# Examples
+# * retries = 3
+# * retries = { backoff = "fixed", count = 2, delay = "1s" }
+# * retries = { backoff = "exponential", count = 10, delay = "1s", jitter = true, max-delay = "10s" }
+retries = 0
+
+# The number of threads to run tests with. Supported values are either an integer or
+# the string "num-cpus". Can be overridden through the `--test-threads` option.
+test-threads = "num-cpus"
+
+# The number of threads required for each test. This is generally used in overrides to
+# mark certain tests as heavier than others. However, it can also be set as a global parameter.
+threads-required = 1
+
+# Show these test statuses in the output.
+#
+# The possible values this can take are:
+# * none: no output
+# * fail: show failed (including exec-failed) tests
+# * retry: show flaky and retried tests
+# * slow: show slow tests
+# * pass: show passed tests
+# * skip: show skipped tests (most useful for CI)
+# * all: all of the above
+#
+# Each value includes all the values above it; for example, "slow" includes
+# failed and retried tests.
+#
+# Can be overridden through the `--status-level` flag.
+status-level = "pass"
+
+# Similar to status-level, show these test statuses at the end of the run.
+final-status-level = "flaky"
+
+# "failure-output" defines when standard output and standard error for failing tests are produced.
+# Accepted values are
+# * "immediate": output failures as soon as they happen
+# * "final": output failures at the end of the test run
+# * "immediate-final": output failures as soon as they happen and at the end of
+#   the test run; combination of "immediate" and "final"
+# * "never": don't output failures at all
+#
+# For large test suites and CI it is generally useful to use "immediate-final".
+#
+# Can be overridden through the `--failure-output` option.
+failure-output = "immediate"
+
+# "success-output" controls production of standard output and standard error on success. This should
+# generally be set to "never".
+success-output = "never"
+
+# Cancel the test run on the first failure. For CI runs, consider setting this
+# to false.
+fail-fast = true
+
+# Treat a test that takes longer than the configured 'period' as slow, and print a message.
+# See <https://nexte.st/book/slow-tests> for more information.
+#
+# Optional: specify the parameter 'terminate-after' with a non-zero integer,
+# which will cause slow tests to be terminated after the specified number of
+# periods have passed.
+# Example: slow-timeout = { period = "60s", terminate-after = 2 }
+slow-timeout = { period = "120s" }
+
+# Treat a test as leaky if after the process is shut down, standard output and standard error
+# aren't closed within this duration.
+#
+# This usually happens in case of a test that creates a child process and lets it inherit those
+# handles, but doesn't clean the child process up (especially when it fails).
+#
+# See <https://nexte.st/book/leaky-tests> for more information.
+leak-timeout = "100ms"
+
+[profile.default.junit]
+# Output a JUnit report into the given file inside 'store.dir/<profile-name>'.
+# If unspecified, JUnit is not written out.
+
+# path = "junit.xml"
+
+# The name of the top-level "report" element in JUnit report. If aggregating
+# reports across different test runs, it may be useful to provide separate names
+# for each report.
+report-name = "lighthouse-run"
+
+# Whether standard output and standard error for passing tests should be stored in the JUnit report.
+# Output is stored in the <system-out> and <system-err> elements of the <testcase> element.
+store-success-output = false
+
+# Whether standard output and standard error for failing tests should be stored in the JUnit report.
+# Output is stored in the <system-out> and <system-err> elements of the <testcase> element.
+#
+# Note that if a description can be extracted from the output, it is always stored in the
+# <description> element.
+store-failure-output = true
+
+# This profile is activated if MIRI_SYSROOT is set.
+[profile.default-miri]
+# Miri tests take up a lot of memory, so only run 1 test at a time by default.
+test-threads = 4
diff --git a/.github/workflows/test-suite.yml b/.github/workflows/test-suite.yml
index fd9b77ae2f9..a296cc8491c 100644
--- a/.github/workflows/test-suite.yml
+++ b/.github/workflows/test-suite.yml
@@ -18,14 +18,14 @@ env:
   # Deny warnings in CI
   # Disable debug info (see https://github.com/sigp/lighthouse/issues/4005)
   RUSTFLAGS: "-D warnings -C debuginfo=0"
-  # The Nightly version used for cargo-udeps, might need updating from time to time.
-  PINNED_NIGHTLY: nightly-2023-04-16
   # Prevent Github API rate limiting.
   LIGHTHOUSE_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   # Enable self-hosted runners for the sigp repo only.
   SELF_HOSTED_RUNNERS: ${{ github.repository == 'sigp/lighthouse' }}
   # Self-hosted runners need to reference a different host for `./watch` tests.
   WATCH_HOST: ${{ github.repository == 'sigp/lighthouse' && 'host.docker.internal' || 'localhost' }}
+  # Disable incremental compilation
+  CARGO_INCREMENTAL: 0
 jobs:
   target-branch-check:
     name: target-branch-check
@@ -34,145 +34,176 @@ jobs:
     steps:
         - name: Check that the pull request is not targeting the stable branch
           run: test ${{ github.base_ref }} != "stable"
-  extract-msrv:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-    - name: Extract Minimum Supported Rust Version (MSRV)
-      run: |
-        metadata=$(cargo metadata --no-deps --format-version 1)
-        msrv=$(echo $metadata | jq -r '.packages | map(select(.name == "lighthouse")) | .[0].rust_version')
-        echo "MSRV=$msrv" >> $GITHUB_OUTPUT
-      id: extract_msrv
-    outputs:
-      MSRV: ${{ steps.extract_msrv.outputs.MSRV }}
-  cargo-fmt:
-    name: cargo-fmt
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-    - name: Get latest version of stable Rust
-      run: rustup update stable
-    - name: Check formatting with cargo fmt
-      run: make cargo-fmt
   release-tests-ubuntu:
     name: release-tests-ubuntu
     # Use self-hosted runners only on the sigp repo.
     runs-on: ${{ github.repository == 'sigp/lighthouse' && fromJson('["self-hosted", "linux", "CI", "large"]') || 'ubuntu-latest'  }}
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      if: env.SELF_HOSTED_RUNNERS == false
-      run: rustup update stable
+      if: env.SELF_HOSTED_RUNNERS == 'false'
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          bins: cargo-nextest
+      env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     - name: Install Foundry (anvil)
+      if: env.SELF_HOSTED_RUNNERS == 'false'
       uses: foundry-rs/foundry-toolchain@v1
       with:
         version: nightly-ca67d15f4abd46394b324c50e21e66f306a1162d
     - name: Run tests in release
-      run: make test-release
+      run: make nextest-release
+    - name: Show cache stats
+      if: env.SELF_HOSTED_RUNNERS == 'true'
+      run: sccache --show-stats
   release-tests-windows:
     name: release-tests-windows
     runs-on: ${{ github.repository == 'sigp/lighthouse' && fromJson('["self-hosted", "windows", "CI"]') || 'windows-2019'  }}
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      if: env.SELF_HOSTED_RUNNERS == false
-      run: rustup update stable
+      if: env.SELF_HOSTED_RUNNERS == 'false'
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          bins: cargo-nextest
+      env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     - name: Install Foundry (anvil)
+      if: env.SELF_HOSTED_RUNNERS == 'false'
       uses: foundry-rs/foundry-toolchain@v1
       with:
         version: nightly-ca67d15f4abd46394b324c50e21e66f306a1162d
     - name: Install make
+      if: env.SELF_HOSTED_RUNNERS == 'false'
       run: choco install -y make
-    - uses: KyleMayes/install-llvm-action@v1
-      if: env.SELF_HOSTED_RUNNERS == false
-      with:
-        version: "15.0"
-        directory: ${{ runner.temp }}/llvm
+#    - uses: KyleMayes/install-llvm-action@v1
+#         if: env.SELF_HOSTED_RUNNERS == 'false'
+#      with:
+#        version: "15.0"
+#        directory: ${{ runner.temp }}/llvm
     - name: Set LIBCLANG_PATH
       run: echo "LIBCLANG_PATH=$((gcm clang).source -replace "clang.exe")" >> $env:GITHUB_ENV
     - name: Run tests in release
-      run: make test-release
+      run: make nextest-release
+    - name: Show cache stats
+      if: env.SELF_HOSTED_RUNNERS == 'true'
+      run: sccache --show-stats
   beacon-chain-tests:
     name: beacon-chain-tests
     # Use self-hosted runners only on the sigp repo.
     runs-on: ${{ github.repository == 'sigp/lighthouse' && fromJson('["self-hosted", "linux", "CI", "large"]') || 'ubuntu-latest'  }}
-    needs: cargo-fmt
+    env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      if: env.SELF_HOSTED_RUNNERS == false
-      run: rustup update stable
+      if: env.SELF_HOSTED_RUNNERS == 'false'
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          bins: cargo-nextest
     - name: Run beacon_chain tests for all known forks
       run: make test-beacon-chain
+    - name: Show cache stats
+      if: env.SELF_HOSTED_RUNNERS == 'true'
+      run: sccache --show-stats
   op-pool-tests:
     name: op-pool-tests
     runs-on: ubuntu-latest
-    needs: cargo-fmt
+    env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          bins: cargo-nextest
     - name: Run operation_pool tests for all known forks
       run: make test-op-pool
   slasher-tests:
     name: slasher-tests
     runs-on: ubuntu-latest
-    needs: cargo-fmt
+    env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          bins: cargo-nextest
     - name: Run slasher tests for all supported backends
       run: make test-slasher
   debug-tests-ubuntu:
     name: debug-tests-ubuntu
     # Use self-hosted runners only on the sigp repo.
     runs-on: ${{ github.repository == 'sigp/lighthouse' && fromJson('["self-hosted", "linux", "CI", "large"]') || 'ubuntu-latest'  }}
-    needs: cargo-fmt
+    env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      if: env.SELF_HOSTED_RUNNERS == false
-      run: rustup update stable
+      if: env.SELF_HOSTED_RUNNERS == 'false'
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          bins: cargo-nextest
     - name: Install Foundry (anvil)
+      if: env.SELF_HOSTED_RUNNERS == 'false'
       uses: foundry-rs/foundry-toolchain@v1
       with:
         version: nightly-ca67d15f4abd46394b324c50e21e66f306a1162d
     - name: Run tests in debug
-      run: make test-debug
+      run: make nextest-debug
+    - name: Show cache stats
+      if: env.SELF_HOSTED_RUNNERS == 'true'
+      run: sccache --show-stats
   state-transition-vectors-ubuntu:
     name: state-transition-vectors-ubuntu
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
     - name: Run state_transition_vectors in release.
       run: make run-state-transition-tests
   ef-tests-ubuntu:
     name: ef-tests-ubuntu
     # Use self-hosted runners only on the sigp repo.
     runs-on: ${{ github.repository == 'sigp/lighthouse' && fromJson('["self-hosted", "linux", "CI", "small"]') || 'ubuntu-latest'  }}
-    needs: cargo-fmt
+    env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      if: env.SELF_HOSTED_RUNNERS == false
-      run: rustup update stable
+      if: env.SELF_HOSTED_RUNNERS == 'false'
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          bins: cargo-nextest
     - name: Run consensus-spec-tests with blst, milagro and fake_crypto
-      run: make test-ef
+      run: make nextest-ef
+    - name: Show cache stats
+      if: env.SELF_HOSTED_RUNNERS == 'true'
+      run: sccache --show-stats
   dockerfile-ubuntu:
     name: dockerfile-ubuntu
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
-    - name: Get latest version of stable Rust
-      run: rustup update stable
     - name: Build the root Dockerfile
       run: docker build --build-arg FEATURES=portable -t lighthouse:local .
     - name: Test the built image
@@ -180,11 +211,13 @@ jobs:
   eth1-simulator-ubuntu:
     name: eth1-simulator-ubuntu
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
     - name: Install Foundry (anvil)
       uses: foundry-rs/foundry-toolchain@v1
       with:
@@ -194,11 +227,13 @@ jobs:
   merge-transition-ubuntu:
     name: merge-transition-ubuntu
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
     - name: Install Foundry (anvil)
       uses: foundry-rs/foundry-toolchain@v1
       with:
@@ -208,21 +243,25 @@ jobs:
   no-eth1-simulator-ubuntu:
     name: no-eth1-simulator-ubuntu
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
     - name: Run the beacon chain sim without an eth1 connection
       run: cargo run --release --bin simulator no-eth1-sim
   syncing-simulator-ubuntu:
     name: syncing-simulator-ubuntu
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
     - name: Install Foundry (anvil)
       uses: foundry-rs/foundry-toolchain@v1
       with:
@@ -231,21 +270,27 @@ jobs:
       run: cargo run --release --bin simulator syncing-sim
   doppelganger-protection-test:
     name: doppelganger-protection-test
-    runs-on: ubuntu-latest
-    needs: cargo-fmt
+    runs-on: ${{ github.repository == 'sigp/lighthouse' && fromJson('["self-hosted", "linux", "CI", "small"]') || 'ubuntu-latest'  }}
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      if: env.SELF_HOSTED_RUNNERS == 'false'
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
     - name: Install geth
+      if: env.SELF_HOSTED_RUNNERS == 'false'
       run: |
           sudo add-apt-repository -y ppa:ethereum/ethereum
           sudo apt-get update
           sudo apt-get install ethereum
-    - name: Install lighthouse and lcli
+    - name: Install lighthouse
       run: |
           make
-          make install-lcli
+    - name: Install lcli
+      if: env.SELF_HOSTED_RUNNERS == 'false'
+      run: make install-lcli
     - name: Run the doppelganger protection failure test script
       run: |
           cd scripts/tests
@@ -257,89 +302,71 @@ jobs:
   execution-engine-integration-ubuntu:
     name: execution-engine-integration-ubuntu
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
-    - uses: actions/setup-go@v3
-      with:
-        go-version: '1.20'
-    - uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: '6.0.201'
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          cache: false
+      env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     - name: Run exec engine integration tests in release
       run: make test-exec-engine
-  check-benchmarks:
-    name: check-benchmarks
+  check-code:
+    name: check-code
     runs-on: ubuntu-latest
-    needs: cargo-fmt
-    steps:
-    - uses: actions/checkout@v3
-    - name: Get latest version of stable Rust
-      run: rustup update stable
-    - name: Typecheck benchmark code without running it
-      run: make check-benches
-  clippy:
-    name: clippy
-    runs-on: ubuntu-latest
-    needs: cargo-fmt
+    env:
+      CARGO_INCREMENTAL: 1
     steps:
     - uses: actions/checkout@v3
     - name: Get latest version of stable Rust
-      run: rustup update stable
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: stable
+          cache-target: release
+          components: rustfmt,clippy
+          bins: cargo-audit
+    - name: Check formatting with cargo fmt
+      run: make cargo-fmt
     - name: Lint code for quality and style with Clippy
       run: make lint
     - name: Certify Cargo.lock freshness
       run: git diff --exit-code Cargo.lock
+    - name: Typecheck benchmark code without running it
+      run: make check-benches
+    - name: Validate state_processing feature arbitrary-fuzz
+      run:  make arbitrary-fuzz
+    - name: Run cargo audit
+      run: make audit-CI
+    - name: Run cargo vendor to make sure dependencies can be vendored for packaging, reproducibility and archival purpose
+      run:  CARGO_HOME=$(readlink -f $HOME) make vendor
   check-msrv:
     name: check-msrv
     runs-on: ubuntu-latest
-    needs: [cargo-fmt, extract-msrv]
     steps:
     - uses: actions/checkout@v3
-    - name: Install Rust @ MSRV (${{ needs.extract-msrv.outputs.MSRV }})
-      run: rustup override set ${{ needs.extract-msrv.outputs.MSRV }}
+    - name: Install Rust at Minimum Supported Rust Version (MSRV)
+      run: |
+        metadata=$(cargo metadata --no-deps --format-version 1)
+        msrv=$(echo $metadata | jq -r '.packages | map(select(.name == "lighthouse")) | .[0].rust_version')
+        rustup override set $msrv
     - name: Run cargo check
       run: cargo check --workspace
-  arbitrary-check:
-    name: arbitrary-check
-    runs-on: ubuntu-latest
-    needs: cargo-fmt
-    steps:
-    - uses: actions/checkout@v3
-    - name: Get latest version of stable Rust
-      run: rustup update stable
-    - name: Validate state_processing feature arbitrary-fuzz
-      run:  make arbitrary-fuzz
-  cargo-audit:
-    name: cargo-audit
-    runs-on: ubuntu-latest
-    needs: cargo-fmt
-    steps:
-    - uses: actions/checkout@v3
-    - name: Get latest version of stable Rust
-      run: rustup update stable
-    - name: Run cargo audit to identify known security vulnerabilities reported to the RustSec Advisory Database
-      run:  make audit
-  cargo-vendor:
-    name: cargo-vendor
-    runs-on: ubuntu-latest
-    needs: cargo-fmt
-    steps:
-    - uses: actions/checkout@v3
-    - name: Run cargo vendor to make sure dependencies can be vendored for packaging, reproducibility and archival purpose
-      run:  CARGO_HOME=$(readlink -f $HOME) make vendor
   cargo-udeps:
     name: cargo-udeps
     runs-on: ubuntu-latest
-    needs: cargo-fmt
     steps:
     - uses: actions/checkout@v3
-    - name: Install Rust (${{ env.PINNED_NIGHTLY }})
-      run: rustup toolchain install $PINNED_NIGHTLY
-    - name: Install cargo-udeps
-      run: cargo install cargo-udeps --locked --force
+    - name: Get latest version of nightly Rust
+      uses: moonrepo/setup-rust@v1
+      with:
+          channel: nightly
+          bins: cargo-udeps
+          cache: false
+      env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     - name: Create Cargo config dir
       run: mkdir -p .cargo
     - name: Install custom Cargo config
diff --git a/Cargo.lock b/Cargo.lock
index 90a5373dbb5..2a8fbdd74ad 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -153,9 +153,9 @@ dependencies = [
 
 [[package]]
 name = "aho-corasick"
-version = "1.1.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f2135563fb5c609d2b2b87c1e8ce7bc41b0b45430fa9661f457981503dd5bf0"
+checksum = "ea5d730647d4fadd988536d06fecce94b7b4f2a7efdae548f1cf4b63205518ab"
 dependencies = [
  "memchr",
 ]
@@ -225,15 +225,6 @@ version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bddcadddf5e9015d310179a59bb28c4d4b9920ad0f11e8e14dbadf654890c9a6"
 
-[[package]]
-name = "array-init"
-version = "0.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23589ecb866b460d3a0f1278834750268c607e8e28a1b982c907219f3178cd72"
-dependencies = [
- "nodrop",
-]
-
 [[package]]
 name = "arrayref"
 version = "0.3.7"
@@ -578,7 +569,7 @@ dependencies = [
  "slog",
  "sloggers",
  "slot_clock",
- "smallvec 1.11.0",
+ "smallvec",
  "ssz_types",
  "state_processing",
  "store",
@@ -903,7 +894,7 @@ dependencies = [
  "ethereum_ssz_derive",
  "quickcheck",
  "quickcheck_macros",
- "smallvec 1.11.0",
+ "smallvec",
  "ssz_types",
  "tree_hash",
 ]
@@ -1138,9 +1129,9 @@ dependencies = [
 
 [[package]]
 name = "concurrent-queue"
-version = "2.2.0"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62ec6771ecfa0762d24683ee5a32ad78487a3d3afdc0fb8cae19d2c5deb50b7c"
+checksum = "f057a694a54f12365049b0958a1685bb52d567f5593b355fbf685838e873d400"
 dependencies = [
  "crossbeam-utils",
 ]
@@ -1400,9 +1391,9 @@ dependencies = [
 
 [[package]]
 name = "curve25519-dalek"
-version = "4.1.0"
+version = "4.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "622178105f911d937a42cdb140730ba4a3ed2becd8ae6ce39c7d28b5d75d4588"
+checksum = "e89b8c6a2e4b1f45971ad09761aafb85514a84744b67a95e32c3cc1352d1f65c"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -1538,7 +1529,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e4355c25cbf99edcb6b4a0e906f6bdc6956eda149e84455bea49696429b2f8e8"
 dependencies = [
  "futures",
- "tokio-util 0.7.8",
+ "tokio-util 0.7.9",
 ]
 
 [[package]]
@@ -1633,9 +1624,9 @@ dependencies = [
 
 [[package]]
 name = "diesel"
-version = "2.1.1"
+version = "2.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d98235fdc2f355d330a8244184ab6b4b33c28679c0b4158f63138e51d6cf7e88"
+checksum = "53c8a2cb22327206568569e5a45bb5a2c946455efdd76e24d15b7e82171af95e"
 dependencies = [
  "bitflags 2.4.0",
  "byteorder",
@@ -1647,9 +1638,9 @@ dependencies = [
 
 [[package]]
 name = "diesel_derives"
-version = "2.1.1"
+version = "2.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e054665eaf6d97d1e7125512bb2d35d07c73ac86cc6920174cb42d1ab697a554"
+checksum = "ef8337737574f55a468005a83499da720f20c65586241ffea339db9ecdfd2b44"
 dependencies = [
  "diesel_table_macro_syntax",
  "proc-macro2",
@@ -1758,7 +1749,7 @@ dependencies = [
  "aes-gcm",
  "arrayvec",
  "delay_map",
- "enr 0.9.0",
+ "enr 0.9.1",
  "fnv",
  "futures",
  "hashlink 0.7.0",
@@ -1772,7 +1763,7 @@ dependencies = [
  "parking_lot 0.11.2",
  "rand",
  "rlp",
- "smallvec 1.11.0",
+ "smallvec",
  "socket2 0.4.9",
  "tokio",
  "tracing",
@@ -1846,7 +1837,7 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7277392b266383ef8396db7fdeb1e77b6c52fed775f5df15bb24f35b72156980"
 dependencies = [
- "curve25519-dalek 4.1.0",
+ "curve25519-dalek 4.1.1",
  "ed25519",
  "rand_core 0.6.4",
  "serde",
@@ -1961,9 +1952,9 @@ dependencies = [
 
 [[package]]
 name = "enr"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0be7b2ac146c1f99fe245c02d16af0696450d8e06c135db75e10eeb9e642c20d"
+checksum = "fe81b5c06ecfdbc71dd845216f225f53b62a10cb8a16c946836a3467f701d05b"
 dependencies = [
  "base64 0.21.4",
  "bytes",
@@ -1974,7 +1965,6 @@ dependencies = [
  "rand",
  "rlp",
  "serde",
- "serde-hex",
  "sha3 0.10.8",
  "zeroize",
 ]
@@ -2401,7 +2391,7 @@ checksum = "e61ffea29f26e8249d35128a82ec8d3bd4fbc80179ea5f5e5e3daafef6a80fcb"
 dependencies = [
  "ethereum-types 0.14.1",
  "itertools",
- "smallvec 1.11.0",
+ "smallvec",
 ]
 
 [[package]]
@@ -2665,9 +2655,9 @@ dependencies = [
 
 [[package]]
 name = "fastrand"
-version = "2.0.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6999dc1837253364c2ebb0704ba97994bd874e8f195d665c50b7548f6ea92764"
+checksum = "25cbce373ec4653f1a01a31e8a5e5ec0c622dc27ff9c4e6606eefef5cbbed4a5"
 
 [[package]]
 name = "ff"
@@ -3106,7 +3096,7 @@ dependencies = [
  "indexmap 1.9.3",
  "slab",
  "tokio",
- "tokio-util 0.7.8",
+ "tokio-util 0.7.9",
  "tracing",
 ]
 
@@ -3236,9 +3226,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b"
+checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7"
 
 [[package]]
 name = "hex"
@@ -3711,7 +3701,7 @@ version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eae7b9aee968036d54dce06cebaefd919e4472e753296daccd6d344e3e2df0c2"
 dependencies = [
- "hermit-abi 0.3.2",
+ "hermit-abi 0.3.3",
  "libc",
  "windows-sys 0.48.0",
 ]
@@ -4047,9 +4037,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-core"
-version = "0.40.0"
+version = "0.40.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef7dd7b09e71aac9271c60031d0e558966cdb3253ba0308ab369bb2de80630d0"
+checksum = "dd44289ab25e4c9230d9246c475a22241e301b23e8f4061d3bdef304a1a99713"
 dependencies = [
  "either",
  "fnv",
@@ -4067,7 +4057,7 @@ dependencies = [
  "quick-protobuf",
  "rand",
  "rw-stream-sink",
- "smallvec 1.11.0",
+ "smallvec",
  "thiserror",
  "unsigned-varint 0.7.2",
  "void",
@@ -4084,7 +4074,7 @@ dependencies = [
  "libp2p-identity",
  "log",
  "parking_lot 0.12.1",
- "smallvec 1.11.0",
+ "smallvec",
  "trust-dns-resolver",
 ]
 
@@ -4115,7 +4105,7 @@ dependencies = [
  "rand",
  "regex",
  "sha2 0.10.7",
- "smallvec 1.11.0",
+ "smallvec",
  "unsigned-varint 0.7.2",
  "void",
 ]
@@ -4137,7 +4127,7 @@ dependencies = [
  "lru 0.10.1",
  "quick-protobuf",
  "quick-protobuf-codec",
- "smallvec 1.11.0",
+ "smallvec",
  "thiserror",
  "void",
 ]
@@ -4178,7 +4168,7 @@ dependencies = [
  "libp2p-swarm",
  "log",
  "rand",
- "smallvec 1.11.0",
+ "smallvec",
  "socket2 0.5.4",
  "tokio",
  "trust-dns-proto",
@@ -4216,7 +4206,7 @@ dependencies = [
  "nohash-hasher",
  "parking_lot 0.12.1",
  "rand",
- "smallvec 1.11.0",
+ "smallvec",
  "unsigned-varint 0.7.2",
 ]
 
@@ -4227,7 +4217,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "71ce70757f2c0d82e9a3ef738fb10ea0723d16cec37f078f719e2c247704c1bb"
 dependencies = [
  "bytes",
- "curve25519-dalek 4.1.0",
+ "curve25519-dalek 4.1.1",
  "futures",
  "libp2p-core",
  "libp2p-identity",
@@ -4286,9 +4276,9 @@ dependencies = [
 
 [[package]]
 name = "libp2p-swarm"
-version = "0.43.3"
+version = "0.43.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28016944851bd73526d3c146aabf0fa9bbe27c558f080f9e5447da3a1772c01a"
+checksum = "f0cf749abdc5ca1dce6296dc8ea0f012464dfcfd3ddd67ffc0cabd8241c4e1da"
 dependencies = [
  "either",
  "fnv",
@@ -4302,7 +4292,7 @@ dependencies = [
  "multistream-select",
  "once_cell",
  "rand",
- "smallvec 1.11.0",
+ "smallvec",
  "tokio",
  "void",
 ]
@@ -4525,7 +4515,7 @@ dependencies = [
  "slog",
  "slog-async",
  "slog-term",
- "smallvec 1.11.0",
+ "smallvec",
  "snap",
  "ssz_types",
  "strum",
@@ -4672,6 +4662,7 @@ name = "lru_cache"
 version = "0.1.0"
 dependencies = [
  "fnv",
+ "mock_instant",
 ]
 
 [[package]]
@@ -4724,22 +4715,17 @@ checksum = "2532096657941c2fea9c289d370a250971c689d4f143798ff67113ec042024a5"
 
 [[package]]
 name = "matchit"
-version = "0.7.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed1202b2a6f884ae56f04cff409ab315c5ce26b5e58d7412e484f01fd52f52ef"
-
-[[package]]
-name = "maybe-uninit"
-version = "2.0.0"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
+checksum = "0e7465ac9959cc2b1404e8e2367b43684a6d13790fe23056cc8c6c5a6b7bcb94"
 
 [[package]]
 name = "md-5"
-version = "0.10.5"
+version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6365506850d44bff6e2fbcb5176cf63650e48bd45ef2fe2665ae1570e0f4b9ca"
+checksum = "d89e7ee0cfbedfc4da3340218492196241d89eefb6dab27de5df917a6d2e78cf"
 dependencies = [
+ "cfg-if",
  "digest 0.10.7",
 ]
 
@@ -4815,7 +4801,7 @@ dependencies = [
  "itertools",
  "proc-macro2",
  "quote",
- "smallvec 1.11.0",
+ "smallvec",
  "syn 1.0.109",
 ]
 
@@ -4915,6 +4901,12 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "mock_instant"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c1a54de846c4006b88b1516731cc1f6026eb5dc4bcb186aa071ef66d40524ec"
+
 [[package]]
 name = "monitoring_api"
 version = "0.1.0"
@@ -5036,7 +5028,7 @@ dependencies = [
  "futures",
  "log",
  "pin-project",
- "smallvec 1.11.0",
+ "smallvec",
  "unsigned-varint 0.7.2",
 ]
 
@@ -5161,7 +5153,7 @@ dependencies = [
  "slog-term",
  "sloggers",
  "slot_clock",
- "smallvec 1.11.0",
+ "smallvec",
  "ssz_types",
  "store",
  "strum",
@@ -5223,12 +5215,6 @@ dependencies = [
  "validator_dir",
 ]
 
-[[package]]
-name = "nodrop"
-version = "0.1.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72ef4a56884ca558e5ddb05a1d1e7e1bfd9a68d9ed024c21704cc98872dae1bb"
-
 [[package]]
 name = "nohash-hasher"
 version = "0.2.0"
@@ -5289,7 +5275,7 @@ dependencies = [
  "num-traits",
  "rand",
  "serde",
- "smallvec 1.11.0",
+ "smallvec",
  "zeroize",
 ]
 
@@ -5329,7 +5315,7 @@ version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
 dependencies = [
- "hermit-abi 0.3.2",
+ "hermit-abi 0.3.3",
  "libc",
 ]
 
@@ -5444,9 +5430,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-src"
-version = "300.1.3+3.1.2"
+version = "300.1.5+3.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd2c101a165fff9935e34def4669595ab1c7847943c42be86e21503e482be107"
+checksum = "559068e4c12950d7dcaa1857a61725c0d38d4fc03ff8e070ab31a75d6e316491"
 dependencies = [
  "cc",
 ]
@@ -5560,9 +5546,9 @@ dependencies = [
 
 [[package]]
 name = "parking"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14f2252c834a40ed9bb5422029649578e63aa341ac401f74e719dd1afda8394e"
+checksum = "e52c774a4c39359c1d1c52e43f73dd91a75a614652c825408eec30c95a9b2067"
 
 [[package]]
 name = "parking_lot"
@@ -5595,7 +5581,7 @@ dependencies = [
  "instant",
  "libc",
  "redox_syscall 0.2.16",
- "smallvec 1.11.0",
+ "smallvec",
  "winapi",
 ]
 
@@ -5608,7 +5594,7 @@ dependencies = [
  "cfg-if",
  "libc",
  "redox_syscall 0.3.5",
- "smallvec 1.11.0",
+ "smallvec",
  "windows-targets 0.48.5",
 ]
 
@@ -6275,9 +6261,9 @@ dependencies = [
 
 [[package]]
 name = "rayon"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d2df5196e37bcc87abebc0053e20787d73847bb33134a69841207dd0a47f03b"
+checksum = "9c27db03db7734835b3f53954b534c91069375ce6ccaa2e065441e07d9b6cdb1"
 dependencies = [
  "either",
  "rayon-core",
@@ -6285,14 +6271,12 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.11.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b8f95bd6966f5c87776639160a66bd8ab9895d9d4ab01ddba9fc60661aebe8d"
+checksum = "5ce3fb6ad83f861aac485e76e1985cd109d9a3713802152be56c3b1f0e0658ed"
 dependencies = [
- "crossbeam-channel",
  "crossbeam-deque",
  "crossbeam-utils",
- "num_cpus",
 ]
 
 [[package]]
@@ -6413,7 +6397,7 @@ dependencies = [
  "tokio",
  "tokio-native-tls",
  "tokio-rustls",
- "tokio-util 0.7.8",
+ "tokio-util 0.7.9",
  "tower-service",
  "url",
  "wasm-bindgen",
@@ -6533,7 +6517,7 @@ dependencies = [
  "fallible-streaming-iterator",
  "hashlink 0.8.4",
  "libsqlite3-sys",
- "smallvec 1.11.0",
+ "smallvec",
 ]
 
 [[package]]
@@ -6602,9 +6586,9 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.38.13"
+version = "0.38.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7db8590df6dfcd144d22afd1b83b36c21a18d7cbc1dc4bb5295a8712e9eb662"
+checksum = "747c788e9ce8e92b12cd485c49ddf90723550b654b32508f979b71a7b1ecda4f"
 dependencies = [
  "bitflags 2.4.0",
  "errno",
@@ -6636,9 +6620,9 @@ dependencies = [
 
 [[package]]
 name = "rustls-webpki"
-version = "0.101.5"
+version = "0.101.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45a27e3b59326c16e23d30aeb7a36a24cc0d29e71d68ff611cdfb4a01d013bed"
+checksum = "3c7d5dece342910d9ba34d259310cae3e0154b873b35408b787b59bce53d34fe"
 dependencies = [
  "ring",
  "untrusted",
@@ -6818,9 +6802,9 @@ dependencies = [
 
 [[package]]
 name = "semver"
-version = "1.0.18"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0293b4b29daaf487284529cc2f5675b8e57c61f70167ba415a463651fd6a918"
+checksum = "ad977052201c6de01a8ef2aa3378c4bd23217a056337d1d6da40468d267a4fb0"
 dependencies = [
  "serde",
 ]
@@ -6848,17 +6832,6 @@ dependencies = [
  "serde_derive",
 ]
 
-[[package]]
-name = "serde-hex"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca37e3e4d1b39afd7ff11ee4e947efae85adfddf4841787bfa47c470e96dc26d"
-dependencies = [
- "array-init",
- "serde",
- "smallvec 0.6.14",
-]
-
 [[package]]
 name = "serde_array_query"
 version = "0.1.0"
@@ -6979,9 +6952,9 @@ dependencies = [
 
 [[package]]
 name = "sha1"
-version = "0.10.5"
+version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f04293dc80c3993519f2d7f6f511707ee7094fe0c6d3406feb330cdb3540eba3"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -7303,18 +7276,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "0.6.14"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b97fcaeba89edba30f044a10c6a3cc39df9c3f17d7cd829dd1446cab35f890e0"
-dependencies = [
- "maybe-uninit",
-]
-
-[[package]]
-name = "smallvec"
-version = "1.11.0"
+version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62bb4feee49fdd9f707ef802e22365a35de4b7b299de4763d44bfea899442ff9"
+checksum = "942b4a808e05215192e39f4ab80813e599068285906cc91aa64f923db842bd5a"
 
 [[package]]
 name = "snap"
@@ -7331,7 +7295,7 @@ dependencies = [
  "aes-gcm",
  "blake2",
  "chacha20poly1305",
- "curve25519-dalek 4.1.0",
+ "curve25519-dalek 4.1.1",
  "rand_core 0.6.4",
  "ring",
  "rustc_version",
@@ -7423,7 +7387,7 @@ dependencies = [
  "itertools",
  "serde",
  "serde_derive",
- "smallvec 1.11.0",
+ "smallvec",
  "tree_hash",
  "typenum",
 ]
@@ -7448,7 +7412,7 @@ dependencies = [
  "merkle_proof",
  "rayon",
  "safe_arith",
- "smallvec 1.11.0",
+ "smallvec",
  "ssz_types",
  "tokio",
  "tree_hash",
@@ -7559,7 +7523,7 @@ dependencies = [
  "itertools",
  "proc-macro2",
  "quote",
- "smallvec 1.11.0",
+ "smallvec",
  "syn 1.0.109",
 ]
 
@@ -7706,9 +7670,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cb94d2f3cc536af71caac6b6fcebf65860b347e7ce0cc9ebe8f70d3e521054ef"
 dependencies = [
  "cfg-if",
- "fastrand 2.0.0",
+ "fastrand 2.0.1",
  "redox_syscall 0.3.5",
- "rustix 0.38.13",
+ "rustix 0.38.14",
  "windows-sys 0.48.0",
 ]
 
@@ -7725,9 +7689,9 @@ dependencies = [
 
 [[package]]
 name = "termcolor"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
+checksum = "6093bad37da69aab9d123a8091e4be0aa4a03e4d601ec641c327398315f62b64"
 dependencies = [
  "winapi-util",
 ]
@@ -7814,9 +7778,9 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.28"
+version = "0.3.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17f6bb557fd245c28e6411aa56b6403c689ad95061f50e4be16c274e70a17e48"
+checksum = "426f806f4089c493dcac0d24c29c01e2c38baf8e30f1b716ee37e83d200b18fe"
 dependencies = [
  "deranged",
  "itoa",
@@ -7829,15 +7793,15 @@ dependencies = [
 
 [[package]]
 name = "time-core"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb"
+checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
 
 [[package]]
 name = "time-macros"
-version = "0.2.14"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a942f44339478ef67935ab2bbaec2fb0322496cf3cbe84b261e06ac3814c572"
+checksum = "4ad70d68dba9e1f8aceda7aa6711965dfec1cac869f311a51bd08b3a2ccbce20"
 dependencies = [
  "time-core",
 ]
@@ -7978,7 +7942,7 @@ dependencies = [
  "rand",
  "socket2 0.5.4",
  "tokio",
- "tokio-util 0.7.8",
+ "tokio-util 0.7.9",
  "whoami",
 ]
 
@@ -8001,7 +7965,7 @@ dependencies = [
  "futures-core",
  "pin-project-lite",
  "tokio",
- "tokio-util 0.7.8",
+ "tokio-util 0.7.9",
 ]
 
 [[package]]
@@ -8022,9 +7986,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.8"
+version = "0.7.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d"
+checksum = "1d68074620f57a0b21594d9735eb2e98ab38b17f80d3fcb189fca266771ca60d"
 dependencies = [
  "bytes",
  "futures-core",
@@ -8172,7 +8136,7 @@ dependencies = [
  "once_cell",
  "regex",
  "sharded-slab",
- "smallvec 1.11.0",
+ "smallvec",
  "thread_local",
  "tracing",
  "tracing-core",
@@ -8206,7 +8170,7 @@ checksum = "5c998ac5fe2b07c025444bdd522e6258110b63861c6698eedc610c071980238d"
 dependencies = [
  "ethereum-types 0.14.1",
  "ethereum_hashing",
- "smallvec 1.11.0",
+ "smallvec",
 ]
 
 [[package]]
@@ -8247,7 +8211,7 @@ dependencies = [
  "ipnet",
  "lazy_static",
  "rand",
- "smallvec 1.11.0",
+ "smallvec",
  "socket2 0.4.9",
  "thiserror",
  "tinyvec",
@@ -8269,7 +8233,7 @@ dependencies = [
  "lru-cache",
  "parking_lot 0.12.1",
  "resolv-conf",
- "smallvec 1.11.0",
+ "smallvec",
  "thiserror",
  "tokio",
  "tracing",
@@ -8328,7 +8292,7 @@ dependencies = [
  "serde_with",
  "serde_yaml",
  "slog",
- "smallvec 1.11.0",
+ "smallvec",
  "ssz_types",
  "state_processing",
  "strum",
@@ -8392,9 +8356,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-width"
-version = "0.1.10"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
+checksum = "e51733f11c9c4f72aa0c160008246859e340b00807569a0da0e7a1079b27ba85"
 
 [[package]]
 name = "unicode-xid"
@@ -8599,9 +8563,9 @@ checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 
 [[package]]
 name = "waker-fn"
-version = "1.1.0"
+version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+checksum = "f3c4517f54858c779bbcbf228f4fca63d121bf85fbecb2dc578cdf4a39395690"
 
 [[package]]
 name = "walkdir"
@@ -8646,7 +8610,7 @@ dependencies = [
  "tokio",
  "tokio-rustls",
  "tokio-stream",
- "tokio-util 0.7.8",
+ "tokio-util 0.7.9",
  "tower-service",
  "tracing",
 ]
@@ -8898,9 +8862,9 @@ checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 
 [[package]]
 name = "winapi-util"
-version = "0.1.5"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+checksum = "f29e6f9198ba0d26b4c9f07dbe6f9ed633e1f3d5b8b414090084349e46a52596"
 dependencies = [
  "winapi",
 ]
@@ -9190,9 +9154,9 @@ dependencies = [
 
 [[package]]
 name = "xml-rs"
-version = "0.8.18"
+version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab77e97b50aee93da431f2cee7cd0f43b4d1da3c408042f2d7d164187774f0a"
+checksum = "0fcb9cbac069e033553e8bb871be2fbdffcab578eb25bd0f7c508cedc6dcd75a"
 
 [[package]]
 name = "xmltree"
diff --git a/Makefile b/Makefile
index 7bed5732b6a..8f744e03c5a 100644
--- a/Makefile
+++ b/Makefile
@@ -108,11 +108,21 @@ build-release-tarballs:
 test-release:
 	cargo test --workspace --release --exclude ef_tests --exclude beacon_chain --exclude slasher
 
+# Runs the full workspace tests in **release**, without downloading any additional
+# test vectors, using nextest.
+nextest-release:
+	cargo nextest run --workspace --release --exclude ef_tests --exclude beacon_chain --exclude slasher
+
 # Runs the full workspace tests in **debug**, without downloading any additional test
 # vectors.
 test-debug:
 	cargo test --workspace --exclude ef_tests --exclude beacon_chain
 
+# Runs the full workspace tests in **debug**, without downloading any additional test
+# vectors, using nextest.
+nextest-debug:
+	cargo nextest run --workspace --exclude ef_tests --exclude beacon_chain
+
 # Runs cargo-fmt (linter).
 cargo-fmt:
 	cargo fmt --all -- --check
@@ -129,25 +139,33 @@ run-ef-tests:
 	cargo test --release -p ef_tests --features "ef_tests,$(EF_TEST_FEATURES),milagro"
 	./$(EF_TESTS)/check_all_files_accessed.py $(EF_TESTS)/.accessed_file_log.txt $(EF_TESTS)/consensus-spec-tests
 
+# Runs EF test vectors with nextest
+nextest-run-ef-tests:
+	rm -rf $(EF_TESTS)/.accessed_file_log.txt
+	cargo nextest run --release -p ef_tests --features "ef_tests,$(EF_TEST_FEATURES)"
+	cargo nextest run --release -p ef_tests --features "ef_tests,$(EF_TEST_FEATURES),fake_crypto"
+	cargo nextest run --release -p ef_tests --features "ef_tests,$(EF_TEST_FEATURES),milagro"
+	./$(EF_TESTS)/check_all_files_accessed.py $(EF_TESTS)/.accessed_file_log.txt $(EF_TESTS)/consensus-spec-tests
+
 # Run the tests in the `beacon_chain` crate for all known forks.
 test-beacon-chain: $(patsubst %,test-beacon-chain-%,$(FORKS))
 
 test-beacon-chain-%:
-	env FORK_NAME=$* cargo test --release --features fork_from_env,slasher/lmdb -p beacon_chain
+	env FORK_NAME=$* cargo nextest run --release --features fork_from_env,slasher/lmdb -p beacon_chain
 
 # Run the tests in the `operation_pool` crate for all known forks.
 test-op-pool: $(patsubst %,test-op-pool-%,$(FORKS))
 
 test-op-pool-%:
-	env FORK_NAME=$* cargo test --release \
+	env FORK_NAME=$* cargo nextest run --release \
 		--features 'beacon_chain/fork_from_env'\
 		-p operation_pool
 
 # Run the tests in the `slasher` crate for all supported database backends.
 test-slasher:
-	cargo test --release -p slasher --features lmdb
-	cargo test --release -p slasher --no-default-features --features mdbx
-	cargo test --release -p slasher --features lmdb,mdbx # both backends enabled
+	cargo nextest run --release -p slasher --features lmdb
+	cargo nextest run --release -p slasher --no-default-features --features mdbx
+	cargo nextest run --release -p slasher --features lmdb,mdbx # both backends enabled
 
 # Runs only the tests/state_transition_vectors tests.
 run-state-transition-tests:
@@ -156,6 +174,9 @@ run-state-transition-tests:
 # Downloads and runs the EF test vectors.
 test-ef: make-ef-tests run-ef-tests
 
+# Downloads and runs the EF test vectors with nextest.
+nextest-ef: make-ef-tests nextest-run-ef-tests
+
 # Runs tests checking interop between Lighthouse and execution clients.
 test-exec-engine:
 	make -C $(EXECUTION_ENGINE_INTEGRATION) test
@@ -205,8 +226,12 @@ arbitrary-fuzz:
 	cargo check -p slashing_protection --features arbitrary-fuzz
 
 # Runs cargo audit (Audit Cargo.lock files for crates with security vulnerabilities reported to the RustSec Advisory Database)
-audit:
+audit: install-audit audit-CI
+
+install-audit:
 	cargo install --force cargo-audit
+
+audit-CI:
 	cargo audit
 
 # Runs `cargo vendor` to make sure dependencies can be vendored for packaging, reproducibility and archival purpose.
diff --git a/bors.toml b/bors.toml
index 3782ef4db30..e821b89a813 100644
--- a/bors.toml
+++ b/bors.toml
@@ -8,6 +8,7 @@ status = [
     "eth1-simulator-ubuntu",
     "merge-transition-ubuntu",
     "no-eth1-simulator-ubuntu",
+    "check-code",
     "cargo-udeps",
     "beacon-chain-tests",
     "op-pool-tests",
diff --git a/common/lru_cache/Cargo.toml b/common/lru_cache/Cargo.toml
index 73c623ed443..c1bd15f9f8b 100644
--- a/common/lru_cache/Cargo.toml
+++ b/common/lru_cache/Cargo.toml
@@ -6,3 +6,6 @@ edition = { workspace = true }
 
 [dependencies]
 fnv = { workspace = true }
+
+[dev-dependencies]
+mock_instant = "0.3"
diff --git a/common/lru_cache/src/time.rs b/common/lru_cache/src/time.rs
index 966741ca4dd..0b2fd835687 100644
--- a/common/lru_cache/src/time.rs
+++ b/common/lru_cache/src/time.rs
@@ -1,7 +1,13 @@
 //! This implements a time-based LRU cache for fast checking of duplicates
 use fnv::FnvHashSet;
+#[cfg(test)]
+use mock_instant::Instant;
 use std::collections::VecDeque;
-use std::time::{Duration, Instant};
+
+#[cfg(not(test))]
+use std::time::Instant;
+
+use std::time::Duration;
 
 struct Element<Key> {
     /// The key being inserted.
@@ -222,16 +228,16 @@ mod test {
         cache.insert("a");
         cache.insert("b");
 
-        std::thread::sleep(Duration::from_millis(20));
+        mock_instant::MockClock::advance(Duration::from_millis(20));
         cache.insert("a");
         // a is newer now
 
-        std::thread::sleep(Duration::from_millis(85));
+        mock_instant::MockClock::advance(Duration::from_millis(85));
         assert!(cache.contains(&"a"),);
         // b was inserted first but was not as recent it should have been removed
         assert!(!cache.contains(&"b"));
 
-        std::thread::sleep(Duration::from_millis(16));
+        mock_instant::MockClock::advance(Duration::from_millis(16));
         assert!(!cache.contains(&"a"));
     }
 }
diff --git a/consensus/state_processing/src/per_block_processing/tests.rs b/consensus/state_processing/src/per_block_processing/tests.rs
index 16fa2462f5e..df5aa9f7a60 100644
--- a/consensus/state_processing/src/per_block_processing/tests.rs
+++ b/consensus/state_processing/src/per_block_processing/tests.rs
@@ -1,4 +1,4 @@
-#![cfg(all(test, not(feature = "fake_crypto")))]
+#![cfg(all(test, not(feature = "fake_crypto"), not(debug_assertions)))]
 
 use crate::per_block_processing::errors::{
     AttestationInvalid, AttesterSlashingInvalid, BlockOperationError, BlockProcessingError,
diff --git a/testing/web3signer_tests/tls/generate.sh b/testing/web3signer_tests/tls/generate.sh
index f00e7b7e37a..f918e87cf82 100755
--- a/testing/web3signer_tests/tls/generate.sh
+++ b/testing/web3signer_tests/tls/generate.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 openssl req -x509 -sha256 -nodes -days 36500 -newkey rsa:4096 -keyout web3signer/key.key -out web3signer/cert.pem -config web3signer/config &&
-openssl pkcs12 -export -out web3signer/key.p12 -inkey web3signer/key.key -in web3signer/cert.pem -password pass:$(cat web3signer/password.txt) &&
+openssl pkcs12 -export -aes256 -out web3signer/key.p12 -inkey web3signer/key.key -in web3signer/cert.pem -password pass:$(cat web3signer/password.txt) &&
 cp web3signer/cert.pem lighthouse/web3signer.pem &&
 openssl req -x509 -sha256 -nodes -days 36500 -newkey rsa:4096 -keyout lighthouse/key.key -out lighthouse/cert.pem -config lighthouse/config &&
-openssl pkcs12 -export -out lighthouse/key.p12 -inkey lighthouse/key.key -in lighthouse/cert.pem -password pass:$(cat lighthouse/password.txt) &&
+openssl pkcs12 -export -aes256 -out lighthouse/key.p12 -inkey lighthouse/key.key -in lighthouse/cert.pem -password pass:$(cat lighthouse/password.txt) &&
 openssl x509 -noout -fingerprint -sha256 -inform pem -in lighthouse/cert.pem | cut -b 20-| sed "s/^/lighthouse /" > web3signer/known_clients.txt
diff --git a/testing/web3signer_tests/tls/lighthouse/cert.pem b/testing/web3signer_tests/tls/lighthouse/cert.pem
index 5746d19a165..24b0a2e5c0e 100644
--- a/testing/web3signer_tests/tls/lighthouse/cert.pem
+++ b/testing/web3signer_tests/tls/lighthouse/cert.pem
@@ -1,33 +1,33 @@
 -----BEGIN CERTIFICATE-----
-MIIFujCCA6KgAwIBAgIUELASgYwStCn/u/8tPByRADyCwLEwDQYJKoZIhvcNAQEL
+MIIFujCCA6KgAwIBAgIUXZijYo8W4/9dAq58ocFEbZDxohwwDQYJKoZIhvcNAQEL
 BQAwazELMAkGA1UEBhMCVVMxCzAJBgNVBAgMAlZBMREwDwYDVQQHDAhTb21lQ2l0
 eTESMBAGA1UECgwJTXlDb21wYW55MRMwEQYDVQQLDApNeURpdmlzaW9uMRMwEQYD
-VQQDDApsaWdodGhvdXNlMCAXDTIzMDkyMjAzMDA1N1oYDzIxMjMwODI5MDMwMDU3
+VQQDDApsaWdodGhvdXNlMCAXDTIzMDkyMDAyNTYzNloYDzIxMjMwODI3MDI1NjM2
 WjBrMQswCQYDVQQGEwJVUzELMAkGA1UECAwCVkExETAPBgNVBAcMCFNvbWVDaXR5
 MRIwEAYDVQQKDAlNeUNvbXBhbnkxEzARBgNVBAsMCk15RGl2aXNpb24xEzARBgNV
-BAMMCmxpZ2h0aG91c2UwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCc
-i30cib5B/B5QNd8grzi4LxmlyfZFi3VfpukwdwOD1Xk3ODk1OtjAzhK46YhDclvc
-u98m1Dnib1Z+eTjRuEEoekIxz2+BbOle7G52LNvuDZpD+HKucqIU3TnEKPPuTYPp
-lZ1n/9EyxXUwD5uTkn7xXzK8UFXUt73j6I6VFMdHlNcwLcx8KSwBDzvnGT4ew/UL
-+ThON3j5rIT+nFHDcC2zoM+6ANdVkL6GHid4/cOcYW6GxB9TRZtEasqze41bC+kX
-ZtPlV5V2nilAzVj8z9ynwBpHkLH+E6sMUhSEwA++QfI1gGf0FmSBgSIZ3RdPo/dp
-hkLG8fZXKMkMzKkRm5hcstDP6DnTIYl+CfuVez5gZ0/yelAqXNvTqMKuDhHTTRRY
-aOXZX4BAiQO2Q6a6WYLe87E2ka5AF2T2y/BPeXjUwDS/1mFIB3FUGlMLVJt8/RLz
-nXVGoSsYapttiiPucQbMPEysCJ4/LZ9zxe3EDWWjpurLHGi/Y/dVziEvg1Eoycix
-dZogKz0QVCz4++QI0kPDDX7So7CWni2JJuYguF/8CX8QbCT2L8jXf0uQrq76FLKj
-88A7lS8DzXBt/pRryiIlDyLenJwHmrv6p+P/FYvgnJHvAEtTynxYm5GA16YWy+Dj
-c5XVgNHjV4TdX3GueAp+NhBBaHDFvYCbP/oXkRvNRQIDAQABo1QwUjALBgNVHQ8E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 BAMCBDAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwDwYDVR0RBAgwBocEfwAAATAdBgNV
-HQ4EFgQUoeeF4G1qTRzLvO583qitbNDzr10wDQYJKoZIhvcNAQELBQADggIBAA9Y
-YZP0pZLyovSnjyyuTR4KE9B+TSwqHe/LvH+7EAXLH+cwhyS7ADfJyt3mOCbKHZSo
-dmJ5KWQ6M2Xn9Wq40BPk8mQPmAxy0nHg5beG03HYXOIsK8zgXTMad1+D1jnHPAda
-ldXJ2Y+ljx4TDXKCWpTaq1+flqgRD3t98tOLuiULZ5jsTFX8Xbun7matcjziU5Lo
-GWVQPWkb8Vx+3QyfbfiYJ7hggfYTxQsVJOXKuD8k2FMtKn5oTp3VwD2kY1q2X2Yk
-HsDZJdYrvjWi2LcZDKoSNeusuLrv1XoUnwsAa3ng6drvoEU16vfILLYqH820UJ61
-/fFm3a9BFHRvPVd/WcSeIVc9jx9+32RIVxlppwCINnGMGE20kUZxu0TiMjTX9bCp
-AouDuhwMt7z5jiQIi/CMxN6IlHBeVLqyK8ayWvH40xYgZTXlePpmLcQhcieNk7oJ
-ard9jMfj4JhH5GbLXVptMBVJ0f9Ql4rW3EyNipvVKdkgTUNIeVm7LyUK220aT7ty
-a0pGWHHViiF1MjGExo0P3gjZIML32TjZWlG3Nts5NAiyXDo4f78VeLyZQ7efVkub
-GpjMf89vrmPdQhssoFr8fRFQObDe7hgxkgeiw9jgHItJl2/MWAxfsHV18HwiBqGW
-QzaZR995YhU480jvA5XR8+EB6QUZeCEKunW8WK/F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 -----END CERTIFICATE-----
diff --git a/testing/web3signer_tests/tls/lighthouse/key.key b/testing/web3signer_tests/tls/lighthouse/key.key
index 91bee6a783a..d00b6c21229 100644
--- a/testing/web3signer_tests/tls/lighthouse/key.key
+++ b/testing/web3signer_tests/tls/lighthouse/key.key
@@ -1,52 +1,52 @@
 -----BEGIN PRIVATE KEY-----
-MIIJQwIBADANBgkqhkiG9w0BAQEFAASCCS0wggkpAgEAAoICAQCci30cib5B/B5Q
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 -----END PRIVATE KEY-----
diff --git a/testing/web3signer_tests/tls/lighthouse/key.p12 b/testing/web3signer_tests/tls/lighthouse/key.p12
index d96ab477574..73468fa084b 100644
Binary files a/testing/web3signer_tests/tls/lighthouse/key.p12 and b/testing/web3signer_tests/tls/lighthouse/key.p12 differ
diff --git a/testing/web3signer_tests/tls/lighthouse/web3signer.pem b/testing/web3signer_tests/tls/lighthouse/web3signer.pem
index 4550214478a..6266cadf9bc 100644
--- a/testing/web3signer_tests/tls/lighthouse/web3signer.pem
+++ b/testing/web3signer_tests/tls/lighthouse/web3signer.pem
@@ -1,33 +1,33 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/testing/web3signer_tests/tls/web3signer/cert.pem b/testing/web3signer_tests/tls/web3signer/cert.pem
index 4550214478a..6266cadf9bc 100644
--- a/testing/web3signer_tests/tls/web3signer/cert.pem
+++ b/testing/web3signer_tests/tls/web3signer/cert.pem
@@ -1,33 +1,33 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
diff --git a/testing/web3signer_tests/tls/web3signer/key.key b/testing/web3signer_tests/tls/web3signer/key.key
index 42b7ad9a944..d9697534064 100644
--- a/testing/web3signer_tests/tls/web3signer/key.key
+++ b/testing/web3signer_tests/tls/web3signer/key.key
@@ -1,52 +1,52 @@
 -----BEGIN PRIVATE KEY-----
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 -----END PRIVATE KEY-----
diff --git a/testing/web3signer_tests/tls/web3signer/key.p12 b/testing/web3signer_tests/tls/web3signer/key.p12
index 51269be8d0f..792dc197f86 100644
Binary files a/testing/web3signer_tests/tls/web3signer/key.p12 and b/testing/web3signer_tests/tls/web3signer/key.p12 differ
diff --git a/testing/web3signer_tests/tls/web3signer/known_clients.txt b/testing/web3signer_tests/tls/web3signer/known_clients.txt
index 33013273122..c4722fe5876 100644
--- a/testing/web3signer_tests/tls/web3signer/known_clients.txt
+++ b/testing/web3signer_tests/tls/web3signer/known_clients.txt
@@ -1 +1 @@
-lighthouse FF:4C:84:A6:37:28:EC:7E:A7:D8:C6:49:0D:C6:F9:5D:C1:06:BA:6D:69:49:0A:AA:38:32:01:2B:ED:D9:F2:FA
+lighthouse 02:D0:A8:C0:6A:59:90:40:54:67:D4:BD:AE:5A:D4:F5:14:A9:79:38:98:E0:62:93:C1:77:13:FC:B4:60:65:CE
diff --git a/validator_client/slashing_protection/Makefile b/validator_client/slashing_protection/Makefile
index e3d935b4c98..0663b3cba2b 100644
--- a/validator_client/slashing_protection/Makefile
+++ b/validator_client/slashing_protection/Makefile
@@ -6,20 +6,23 @@ ARCHIVE_URL := https://github.com/eth-clients/slashing-protection-interchange-te
 
 ifeq ($(OS),Windows_NT)
 ifeq (, $(shell where rm))
-	rmfile = if exist $(1) (del /F /Q $(1))
-	rmdir  = if exist $(1) (rmdir /Q /S $(1))
+	rmfile  = if exist $(1) (del /F /Q $(1))
+	rmdir   = if exist $(1) (rmdir /Q /S $(1))
+	makedir = if not exist $(1) (mkdir $(1))
 else
-	rmfile = rm -f $(1)
-	rmdir  = rm -rf $(1)
+	rmfile  = rm -f $(1)
+	rmdir   = rm -rf $(1)
+	makedir = mkdir -p $(1)
 endif
 else
-	rmfile = rm -f $(1)
-	rmdir  = rm -rf $(1)
+	rmfile  = rm -f $(1)
+	rmdir   = rm -rf $(1)
+	makedir = mkdir -p $(1)
 endif
 
 $(OUTPUT_DIR): $(TARBALL)
 	$(call rmdir,$@)
-	mkdir $@
+	$(call makedir,$@)
 	tar --strip-components=1 -xzf $^ -C $@
 
 $(TARBALL):
diff --git a/validator_client/slashing_protection/tests/interop.rs b/validator_client/slashing_protection/tests/interop.rs
index ee5bb114712..ee8f522cd6a 100644
--- a/validator_client/slashing_protection/tests/interop.rs
+++ b/validator_client/slashing_protection/tests/interop.rs
@@ -25,8 +25,10 @@ fn test_root_dir() -> PathBuf {
         .join("tests")
 }
 
+// NOTE: I've combined two tests together to avoid a race-condition which occurs when fighting over
+// which test builds the TEST_ROOT_DIR lazy static.
 #[test]
-fn generated() {
+fn generated_and_with_minification() {
     for entry in TEST_ROOT_DIR
         .join("generated")
         .read_dir()
@@ -37,10 +39,7 @@ fn generated() {
         let test_case: MultiTestCase = serde_json::from_reader(&file).unwrap();
         test_case.run(false);
     }
-}
 
-#[test]
-fn generated_with_minification() {
     for entry in TEST_ROOT_DIR
         .join("generated")
         .read_dir()