diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index a02e9900c..5a529a6c5 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -2,8 +2,17 @@ name: Create docker images
 
 on:
   push:
-    tags:
-      - 'v*.*.*'
+    branches:
+      - master
+      - main
+      - dev
+    # Publish semver tags as releases.
+    tags: [ 'v*.*.*' ]
+  pull_request:
+    branches:
+      - master
+      - main
+      - dev
   workflow_dispatch:
 
 jobs:
@@ -13,6 +22,8 @@ jobs:
     permissions:
       contents: read
       packages: write
+      # This is used to complete the identity challenge
+      # with sigstore/fulcio when running outside of PRs.
       id-token: write
 
     strategy:
@@ -22,22 +33,25 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      # Install cosign (for image signing)
+      # Install the cosign tool except on PR
+      # https://github.com/sigstore/cosign-installer
       - name: Install cosign
+        if: github.event_name != 'pull_request'
         uses: sigstore/cosign-installer@v3
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
 
-      - name: Log into Docker Hub
-        if: github.repository == 'umami-software/umami'
+      - name: Log into registry docker.io
+        if: github.event_name != 'pull_request' && github.repository == 'umami-software/umami'
         uses: docker/login-action@v3
         with:
           registry: docker.io
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
 
-      - name: Log into GHCR
+      - name: Log into ghcr registry
+        if: github.event_name != 'pull_request'
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
@@ -55,8 +69,14 @@ jobs:
             latest=auto
             prefix=${{ matrix.db-type }}-
           tags: |
+            type=ref,event=branch
+            type=ref,event=pr
+
+            # output 1.1.2
             type=semver,pattern={{version}}
+            # output 1.1
             type=semver,pattern={{major}}.{{minor}}
+            # output 1
             type=semver,pattern={{major}}
 
       - name: Build and push Docker image
@@ -66,14 +86,15 @@ jobs:
           context: .
           platforms: linux/amd64,linux/arm64
           build-args: DATABASE_TYPE=${{ matrix.db-type }}
-          push: true
+          push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
 
-      # Sign the published image digest
+      # Sign the resulting Docker image digest except on PRs.
       - name: Sign the published Docker image
+        if: ${{ github.event_name != 'pull_request' }}
         env:
           TAGS: ${{ steps.meta.outputs.tags }}
           DIGEST: ${{ steps.build-and-push.outputs.digest }}
diff --git a/.github/workflows/delete-untagged-images.yml b/.github/workflows/delete-untagged-images.yml
deleted file mode 100644
index a23a1bd27..000000000
--- a/.github/workflows/delete-untagged-images.yml
+++ /dev/null
@@ -1,22 +0,0 @@
-name: Delete untagged GHCR images
-
-on:
-  workflow_dispatch: # Run manually from the Actions tab
-
-jobs:
-  cleanup:
-    name: Delete all untagged images
-    runs-on: ubuntu-latest
-
-    permissions:
-      packages: write
-      contents: read
-
-    steps:
-      - name: Delete untagged GHCR images
-        uses: actions/delete-package-versions@v5
-        with:
-          package-name: "umami" # 👈 change if your GHCR package name differs
-          package-type: "container"
-          delete-only-untagged-versions: true
-          min-versions-to-keep: 0
diff --git a/cypress/e2e/api-website.cy.ts b/cypress/e2e/api-website.cy.ts
index cd336bda0..7f7d17c38 100644
--- a/cypress/e2e/api-website.cy.ts
+++ b/cypress/e2e/api-website.cy.ts
@@ -149,21 +149,6 @@ describe('Website API tests', () => {
     });
   });
 
-  it('Updates a website with only shareId.', () => {
-    cy.request({
-      method: 'POST',
-      url: `/api/websites/${websiteId}`,
-      headers: {
-        'Content-Type': 'application/json',
-        Authorization: Cypress.env('authorization'),
-      },
-      body: { shareId: 'ABCDEF' },
-    }).then(response => {
-      expect(response.status).to.eq(200);
-      expect(response.body).to.have.property('shareId', 'ABCDEF');
-    });
-  });
-
   it('Resets a website by removing all data related to the website.', () => {
     cy.request({
       method: 'POST',
diff --git a/src/lib/date.ts b/src/lib/date.ts
index afbe07211..fa87277f3 100644
--- a/src/lib/date.ts
+++ b/src/lib/date.ts
@@ -103,18 +103,9 @@ export const DATE_FORMATS = {
   year: 'yyyy',
 };
 
-const TIMEZONE_MAPPINGS: Record<string, string> = {
-  'Asia/Calcutta': 'Asia/Kolkata',
-};
-
-export function normalizeTimezone(timezone: string): string {
-  return TIMEZONE_MAPPINGS[timezone] || timezone;
-}
-
 export function isValidTimezone(timezone: string) {
   try {
-    const normalizedTimezone = normalizeTimezone(timezone);
-    Intl.DateTimeFormat(undefined, { timeZone: normalizedTimezone });
+    Intl.DateTimeFormat(undefined, { timeZone: timezone });
     return true;
   } catch {
     return false;
diff --git a/src/lib/prisma.ts b/src/lib/prisma.ts
index cf7306e94..4bc581a74 100644
--- a/src/lib/prisma.ts
+++ b/src/lib/prisma.ts
@@ -277,10 +277,6 @@ function getSchema() {
 }
 
 function getClient() {
-  if (!process.env.DATABASE_URL) {
-    return null;
-  }
-
   const prisma = new UmamiPrismaClient({
     url: process.env.DATABASE_URL,
     prismaClient: PrismaClient,
diff --git a/src/lib/schema.ts b/src/lib/schema.ts
index 24ef99c3d..965eae079 100644
--- a/src/lib/schema.ts
+++ b/src/lib/schema.ts
@@ -1,13 +1,10 @@
 import { z } from 'zod';
-import { isValidTimezone, normalizeTimezone } from '@/lib/date';
+import { isValidTimezone } from '@/lib/date';
 import { UNIT_TYPES } from './constants';
 
-export const timezoneParam = z
-  .string()
-  .refine((value: string) => isValidTimezone(value), {
-    message: 'Invalid timezone',
-  })
-  .transform((value: string) => normalizeTimezone(value));
+export const timezoneParam = z.string().refine(value => isValidTimezone(value), {
+  message: 'Invalid timezone',
+});
 
 export const unitParam = z.string().refine(value => UNIT_TYPES.includes(value), {
   message: 'Invalid unit',