diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index dd793898ec..7252c27b5f 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -10,7 +10,7 @@ on:
 jobs:
     backport:
         name: Backport
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         # Only react to merged PRs for security reasons.
         # See https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target.
         if: >
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 84bb3d263d..55f5c1f4a3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,15 +18,15 @@ jobs:
             fail-fast: false
             matrix:
                 image:
-                    - ubuntu-latest
-                    - windows-latest
-                    - macos-latest
+                    - ubuntu-24.04
+                    - windows-2022
+                    - macos-14
                 isDevelop:
                     - ${{ github.event_name == 'push' && github.ref_name == 'develop' }}
-                # Skip the ubuntu-latest build for the develop branch as the dedicated CD build_develop workflow handles that
+                # Skip the ubuntu-24.04 build for the develop branch as the dedicated CD build_develop workflow handles that
                 exclude:
                     - isDevelop: true
-                      image: ubuntu-latest
+                      image: ubuntu-24.04
         runs-on: ${{ matrix.image }}
         defaults:
             run:
diff --git a/.github/workflows/build_debian.yaml b/.github/workflows/build_debian.yaml
index 254b99d261..319dccd9f2 100644
--- a/.github/workflows/build_debian.yaml
+++ b/.github/workflows/build_debian.yaml
@@ -7,7 +7,7 @@ jobs:
     build:
         name: Build package
         environment: packages.element.io
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         env:
             R2_INCOMING_BUCKET: ${{ vars.R2_INCOMING_BUCKET }}
             R2_URL: ${{ vars.CF_R2_S3_API }}
diff --git a/.github/workflows/build_develop.yml b/.github/workflows/build_develop.yml
index 2407d2e6f1..b4c96c4eef 100644
--- a/.github/workflows/build_develop.yml
+++ b/.github/workflows/build_develop.yml
@@ -14,7 +14,7 @@ jobs:
         name: "Build & Deploy develop.element.io"
         # Only respect triggers from our develop branch, ignore that of forks
         if: github.repository == 'element-hq/element-web'
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         environment: develop
         env:
             R2_BUCKET: "element-web-develop"
diff --git a/.github/workflows/dockerhub.yaml b/.github/workflows/dockerhub.yaml
index c8bec61fea..2fdc66fb33 100644
--- a/.github/workflows/dockerhub.yaml
+++ b/.github/workflows/dockerhub.yaml
@@ -13,7 +13,7 @@ permissions:
 jobs:
     buildx:
         name: Docker Buildx
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         environment: dockerhub
         strategy:
             fail-fast: false
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index e0bf8a6b8e..c3f08deb1d 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -17,7 +17,7 @@ concurrency:
 jobs:
     build:
         name: GitHub Pages
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - name: Fetch element-desktop
               uses: actions/checkout@v4
@@ -99,7 +99,7 @@ jobs:
         environment:
             name: github-pages
             url: ${{ steps.deployment.outputs.page_url }}
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         needs: build
         steps:
             - name: Deploy to GitHub Pages
diff --git a/.github/workflows/issue_closed.yml b/.github/workflows/issue_closed.yml
index ddcd3d12bd..191f345cc9 100644
--- a/.github/workflows/issue_closed.yml
+++ b/.github/workflows/issue_closed.yml
@@ -7,7 +7,7 @@ on:
 jobs:
     tidy:
         name: Tidy closed issues
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/github-script@v7
               id: main
diff --git a/.github/workflows/pending-reviews.yaml b/.github/workflows/pending-reviews.yaml
index f22483547d..499da6a9b3 100644
--- a/.github/workflows/pending-reviews.yaml
+++ b/.github/workflows/pending-reviews.yaml
@@ -9,7 +9,7 @@ concurrency: ${{ github.workflow }}
 jobs:
     bot:
         name: Pending reviews bot
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         environment: Matrix
         env:
             URL: "https://github.com/pulls?q=is%3Apr+is%3Aopen+repo%3Amatrix-org%2Fmatrix-js-sdk+repo%3Amatrix-org%2Fmatrix-react-sdk+repo%3Aelement-hq%2Felement-web+repo%3Aelement-hq%2Felement-desktop+review-requested%3A%40me+sort%3Aupdated-desc+"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 799c439f73..0e8c21e786 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -27,7 +27,7 @@ jobs:
     notify-downstream:
         name: Trigger release drafter downstream
         needs: release
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - name: Notify element-desktop repo that element-web release has completed to re-trigger release-drafter
               uses: benc-uk/workflow-dispatch@e2e5e9a103e331dad343f381a29e654aea3cf8fc # v1
@@ -41,7 +41,7 @@ jobs:
     check:
         name: Post release checks
         needs: release
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - name: Wait for dockerhub
               uses: t3chguy/wait-on-check-action@18541021811b56544d90e0f073401c2b99e249d6 # fork
diff --git a/.github/workflows/release_prepare.yml b/.github/workflows/release_prepare.yml
index f88e10493d..ce088a9327 100644
--- a/.github/workflows/release_prepare.yml
+++ b/.github/workflows/release_prepare.yml
@@ -19,7 +19,7 @@ on:
                 default: true
 jobs:
     prepare:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - name: Checkout Element Desktop
               uses: actions/checkout@v4
diff --git a/.github/workflows/static_analysis.yaml b/.github/workflows/static_analysis.yaml
index 470e072892..536f78e18d 100644
--- a/.github/workflows/static_analysis.yaml
+++ b/.github/workflows/static_analysis.yaml
@@ -19,7 +19,7 @@ env:
 jobs:
     ts_lint:
         name: "Typescript Syntax Check"
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/checkout@v4
 
@@ -81,7 +81,7 @@ jobs:
 
     js_lint:
         name: "ESLint"
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/checkout@v4
 
@@ -99,7 +99,7 @@ jobs:
 
     style_lint:
         name: "Style Lint"
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/checkout@v4
 
@@ -117,7 +117,7 @@ jobs:
 
     workflow_lint:
         name: "Workflow Lint"
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/checkout@v4
 
@@ -135,7 +135,7 @@ jobs:
 
     analyse_dead_code:
         name: "Analyse Dead Code"
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/checkout@v4
 
diff --git a/.github/workflows/triage-assigned.yml b/.github/workflows/triage-assigned.yml
index 98112d556f..81d1dff80f 100644
--- a/.github/workflows/triage-assigned.yml
+++ b/.github/workflows/triage-assigned.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
     web-app-team:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: |
             contains(github.event.issue.assignees.*.login, 't3chguy') ||
             contains(github.event.issue.assignees.*.login, 'andybalaam') ||
diff --git a/.github/workflows/triage-incoming.yml b/.github/workflows/triage-incoming.yml
index 47ed03efe3..e63017dc3b 100644
--- a/.github/workflows/triage-incoming.yml
+++ b/.github/workflows/triage-incoming.yml
@@ -6,7 +6,7 @@ on:
 
 jobs:
     automate-project-columns:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/add-to-project@main
               with:
diff --git a/.github/workflows/triage-labelled.yml b/.github/workflows/triage-labelled.yml
index 0ee40b987f..0112f180c1 100644
--- a/.github/workflows/triage-labelled.yml
+++ b/.github/workflows/triage-labelled.yml
@@ -11,7 +11,7 @@ on:
 jobs:
     apply_Z-Labs_label:
         name: Add Z-Labs label for features behind labs flags
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'A-Maths') ||
             contains(github.event.issue.labels.*.name, 'A-Location-Sharing') ||
@@ -37,7 +37,7 @@ jobs:
 
     apply_Help-Wanted_label:
         name: Add "Help Wanted" label to all "good first issue" and Hacktoberfest
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'good first issue') ||
             contains(github.event.issue.labels.*.name, 'Hacktoberfest')
@@ -54,7 +54,7 @@ jobs:
 
     move_needs_info_issues:
         name: X-Needs-Info issues to Need info column on triage board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'X-Needs-Info')
         steps:
@@ -77,7 +77,7 @@ jobs:
 
     move_flakey_test_issues:
         name: Z-Flaky-Test issues to Sized for maintainer column on triage board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'Z-Flaky-Test')
         steps:
@@ -100,7 +100,7 @@ jobs:
 
     add_priority_design_issues_to_project:
         name: P1 X-Needs-Design to Design project board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'X-Needs-Design') &&
             (contains(github.event.issue.labels.*.name, 'S-Critical') &&
@@ -117,7 +117,7 @@ jobs:
 
     add_product_issues:
         name: X-Needs-Product to product project board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'X-Needs-Product')
         steps:
@@ -128,7 +128,7 @@ jobs:
 
     Search_issues_to_board:
         name: Search issues to project board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'A-New-Search-Experience')
         steps:
@@ -139,7 +139,7 @@ jobs:
 
     voip:
         name: Add labelled issues to VoIP project board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'Team: VoIP')
         steps:
@@ -150,7 +150,7 @@ jobs:
 
     verticals_feature:
         name: Add labelled issues to Verticals Feature project
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'Team: Verticals Feature')
         steps:
@@ -161,7 +161,7 @@ jobs:
 
     tech_debt:
         name: Add labelled issues to tech debt project
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             contains(github.event.issue.labels.*.name, 'A-Developer-Experience') ||
             contains(github.event.issue.labels.*.name, 'A-Documentation') ||
diff --git a/.github/workflows/triage-move-review-requests.yml b/.github/workflows/triage-move-review-requests.yml
index 9d2924c1a9..72d9786a4a 100644
--- a/.github/workflows/triage-move-review-requests.yml
+++ b/.github/workflows/triage-move-review-requests.yml
@@ -6,7 +6,7 @@ on:
 jobs:
     add_design_pr_to_project:
         name: Move PRs asking for design review to the design board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: octokit/graphql-action@v2.x
               id: find_team_members
@@ -73,7 +73,7 @@ jobs:
 
     add_product_pr_to_project:
         name: Move PRs asking for design review to the design board
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: octokit/graphql-action@v2.x
               id: find_team_members
diff --git a/.github/workflows/triage-stale-flaky-tests.yml b/.github/workflows/triage-stale-flaky-tests.yml
index ab6693675f..d339a136cd 100644
--- a/.github/workflows/triage-stale-flaky-tests.yml
+++ b/.github/workflows/triage-stale-flaky-tests.yml
@@ -4,7 +4,7 @@ on:
         - cron: "30 1 * * *"
 jobs:
     close:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         permissions:
             actions: write
             issues: write
diff --git a/.github/workflows/triage-unlabelled.yml b/.github/workflows/triage-unlabelled.yml
index 59d1bf471d..1cd1c80afc 100644
--- a/.github/workflows/triage-unlabelled.yml
+++ b/.github/workflows/triage-unlabelled.yml
@@ -7,7 +7,7 @@ on:
 jobs:
     Move_Unabeled_Issue_On_Project_Board:
         name: Move no longer X-Needs-Info issues to Triaged
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             ${{
             !contains(github.event.issue.labels.*.name, 'X-Needs-Info') }}
@@ -44,7 +44,7 @@ jobs:
 
     remove_Z-Labs_label:
         name: Remove Z-Labs label when features behind labs flags are removed
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         if: >
             !(contains(github.event.issue.labels.*.name, 'A-Maths') ||
             contains(github.event.issue.labels.*.name, 'A-Message-Pinning') ||
diff --git a/.github/workflows/update-jitsi.yml b/.github/workflows/update-jitsi.yml
index 71405177d2..68dbf22e63 100644
--- a/.github/workflows/update-jitsi.yml
+++ b/.github/workflows/update-jitsi.yml
@@ -6,7 +6,7 @@ on:
         - cron: "0 3 * * 0" # 3am every Sunday
 jobs:
     update:
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         steps:
             - uses: actions/checkout@v4
 
diff --git a/.github/workflows/update-topics.yaml b/.github/workflows/update-topics.yaml
index b24c84ad26..a984fc4f03 100644
--- a/.github/workflows/update-topics.yaml
+++ b/.github/workflows/update-topics.yaml
@@ -18,7 +18,7 @@ concurrency: ${{ github.workflow }}
 jobs:
     bot:
         name: Release topic update
-        runs-on: ubuntu-latest
+        runs-on: ubuntu-24.04
         environment: Matrix
         steps:
             - uses: actions/github-script@v7
@@ -56,7 +56,7 @@ jobs:
                               headers,
                               body: "{}",
                           });
-                          
+
                           let res = await fetch(apiUrl, {
                               method: "GET",
                               headers,
@@ -69,7 +69,7 @@ jobs:
 
                           const data = await res.json();
                           console.log(roomId, "got event", data);
-                          
+
                           const topic = data.topic.replace(regex, releaseTopic);
                           if (topic === data.topic) {
                               console.log(roomId, "nothing to do");
@@ -89,7 +89,7 @@ jobs:
                               }),
                               headers,
                           });
-                          
+
                           if (res.ok) {
                               console.log(roomId, "topic updated:", topic);
                           } else {