diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index d1e0c5a..f904a41 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -59,7 +59,7 @@ jobs:
     env:
       JULIA_DEPOT_PATH: /tmp/julia-depot
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Set cache-name
       id: cache-name
       shell: bash
@@ -117,7 +117,7 @@ jobs:
     env:
       JULIA_DEPOT_PATH: /tmp/julia-depot
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - uses: julia-actions/setup-julia@v2
       with:
         version: ${{ matrix.version }}
@@ -161,7 +161,7 @@ jobs:
     outputs:
       cache-name: ${{ steps.cache-name.outputs.cache-name }}
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Set cache-name
       id: cache-name
       run: |
@@ -193,7 +193,7 @@ jobs:
     needs: test-save-nomatrix
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Restore cache
       id: cache
       uses: ./
@@ -233,7 +233,7 @@ jobs:
     outputs:
       cache-name: ${{ steps.cache-name.outputs.cache-name }}
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Set cache-name
       id: cache-name
       run: |
@@ -259,7 +259,7 @@ jobs:
     needs: test-save-cloned-registry
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
+    - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Add General registry clone
       shell: julia --color=yes {0}
       run: |
diff --git a/README.md b/README.md
index 47794e3..c6c9930 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,8 @@ By default all depot directories called out below are cached.
 ### Outputs
 
 - `cache-hit` - A boolean value to indicate an exact match was found for the primary key. Returns \"\" when the key is new. Forwarded from actions/cache.
+- `cache-paths` - A list of paths (as a newline-separated string) that were cached.
+- `cache-key` - The cache key that was used for this run.
 
 ## How It Works
 
@@ -64,6 +66,9 @@ By default, this action removes caches that were previously made by jobs on the
 GitHub automatically removes old caches after a certain period or when the repository cache allocation is full.
 It is, however, more efficient to explicitly remove old caches to improve caching for less frequently run jobs.
 
+For more information about GitHub caching generically, for example how to manually delete caches, see
+[this GitHub documentation page](https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/caching-dependencies-to-speed-up-workflows#managing-caches).
+
 ### Cache keys
 
 The cache key that the cache will be saved as is based on:
@@ -101,6 +106,35 @@ Which means your caches files will not grow needlessly. GitHub also deletes cach
 
 To disable deletion set input `delete-old-caches: 'false'`.
 
+### Caching even if an intermediate job fails
+
+Just like [the basic actions/cache workflow](https://github.com/actions/cache), this action has a cache restore step, and also a save step which runs after the workflow completes.
+By default, if any job in the workflow fails, the entire workflow will be stopped, and the cache will not be saved.
+
+Due to current limitations in GitHub Actions syntax, there is no built-in option for this action to save the cache even if the job fails.
+However, it does output information which you can feed into `actions/cache` yourself to achieve the same effect.
+For example, this workflow will ensure that the cache is saved if a step fails (but skipping it if the cache was hit, i.e. there's no need to cache it again).
+
+```yaml
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Load Julia packages from cache
+        id: julia-cache
+        uses: julia-actions/cache@v2
+
+      # do whatever you want here (that might fail)
+
+      - name: Save Julia depot cache on cancel or failure
+        id: julia-cache-save
+        if: cancelled() || failure()
+        uses: actions/cache/save@v4
+        with: 
+          path: |
+            ${{ steps.julia-cache.outputs.cache-paths }}
+          key: ${{ steps.julia-cache.outputs.cache-key }}
+```
+
 ### Cache Garbage Collection
 
 Caches are restored and re-saved after every run, retaining the state of the depot throughout runs.
diff --git a/action.yml b/action.yml
index 4a0852f..f399121 100644
--- a/action.yml
+++ b/action.yml
@@ -47,12 +47,18 @@ outputs:
   cache-hit:
     description: A boolean value to indicate an exact match was found for the primary key. Returns "" when the key is new. Forwarded from actions/cache.
     value: ${{ steps.hit.outputs.cache-hit }}
+  cache-paths:
+    description: The paths that were cached
+    value: ${{ steps.paths.outputs.cache-paths }}
+  cache-key:
+    description: The full cache key used
+    value: ${{ steps.keys.outputs.key }}
 
 runs:
   using: 'composite'
   steps:
     - name: Install jq
-      uses: dcarbone/install-jq-action@8867ddb4788346d7c22b72ea2e2ffe4d514c7bcb
+      uses: dcarbone/install-jq-action@b7ef57d46ece78760b4019dbc4080a1ba2a40b45 # v3.2.0
       with:
         force: false  # Skip install when an existing `jq` is present
 
@@ -66,6 +72,12 @@ runs:
         else
             depot="~/.julia"
         fi
+        if [[ "$OSTYPE" == "msys" || "$OSTYPE" == "cygwin" ]]; then
+          depot="${depot/#\~/$USERPROFILE}"  # Windows paths
+          depot="${depot//\\//}"             # Replace backslashes with forward slashes
+        else
+          depot="${depot/#\~/$HOME}"  # Unix-like paths
+        fi
         echo "depot=$depot" | tee -a "$GITHUB_OUTPUT"
 
         cache_paths=()
@@ -75,7 +87,7 @@ runs:
         [ "${{ inputs.cache-packages }}" = "true" ] && cache_paths+=("$packages_path")
         registries_path="${depot}/registries"
         if [ "${{ inputs.cache-registries }}" = "true" ]; then
-            if [ ! -d "${registries_path/#\~/$HOME}" ]; then
+            if [ ! -d "${registries_path}" ]; then
                 cache_paths+=("$registries_path")
             else
                 echo "::warning::Julia depot registries already exist. Skipping restoring of cached registries to avoid potential merge conflicts when updating. Please ensure that \`julia-actions/cache\` precedes any workflow steps which add registries."
@@ -115,7 +127,7 @@ runs:
       env:
         MATRIX_JSON: ${{ toJSON(matrix) }}
 
-    - uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # v4.0.2
+    - uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
       id: cache
       with:
         path: |
@@ -132,6 +144,23 @@ runs:
         du -shc ${{ steps.paths.outputs.depot }}/* || true
       shell: bash
 
+    # issue https://github.com/julia-actions/cache/issues/110
+    # Pkg may not run `Registry.update()` if a manifest exists, which may exist because of a
+    # `Pkg.dev` call or because one is added to the repo. So be safe and update cached registries here.
+    # Older (~v1.0) versions of julia that don't have `Pkg.Registry.update()` seem to always update registries in
+    # Pkg operations. So this is only necessary for newer julia versions.
+    - name: Update any cached registries
+      if: ${{ inputs.cache-registries == 'true' }}
+      continue-on-error: true
+      run: |
+        if [ -d "${{ steps.paths.outputs.depot }}/registries" ] && [ -n "$(ls -A "${{ steps.paths.outputs.depot }}/registries")" ]; then
+          echo "Registries directory exists and is non-empty. Updating any registries"
+          julia -e "import Pkg; isdefined(Pkg, :Registry) && Pkg.Registry.update();"
+        else
+          echo "Registries directory does not exist or is empty. Skipping registry update"
+        fi
+      shell: bash
+
     # GitHub actions cache entries are immutable and cannot be updated. In order to have both the Julia
     # depot cache be up-to-date and avoid storing redundant cache entries we'll manually cleanup old
     # cache entries before the new cache is saved. However, we need to be careful with our manual
@@ -149,7 +178,7 @@ runs:
     # - https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows#usage-limits-and-eviction-policy
 
     # Not windows
-    - uses: pyTooling/Actions/with-post-step@e9d0dc3dba9fda45f195946858708f60c0240caf # v1.0.5
+    - uses: pyTooling/Actions/with-post-step@d6342484cd335d4c9c63d4f52f267c54d5bc3b19 # v5.4.0
       if: ${{ inputs.delete-old-caches != 'false' &&
               github.ref != format('refs/heads/{0}', github.event.repository.default_branch) &&
               runner.OS != 'Windows' }}
@@ -162,7 +191,7 @@ runs:
         GH_TOKEN: ${{ inputs.token }}
 
     # Windows (because this action uses command prompt on windows)
-    - uses: pyTooling/Actions/with-post-step@e9d0dc3dba9fda45f195946858708f60c0240caf # v1.0.5
+    - uses: pyTooling/Actions/with-post-step@d6342484cd335d4c9c63d4f52f267c54d5bc3b19 # v5.4.0
       if: ${{ inputs.delete-old-caches != 'false' &&
               github.ref != format('refs/heads/{0}', github.event.repository.default_branch) &&
               runner.OS == 'Windows' }}