diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64d3c9bdb..9f057c152 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 ## v4.3.0
 
+### IMPORTANT NOTES
+
+ * Redis **<** 5.x is not supported anymore
+ * FFmpeg **<** 4.3 is not supported anymore
+
 ### Maintenance
 
  * Use `yt-dlp` by default instead of `youtube-dl` for new installations (because of much more dev activity)
diff --git a/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.scss b/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.scss
index 1bc9aebba..dda5d0b5e 100644
--- a/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.scss
+++ b/client/src/app/+admin/config/edit-custom-config/edit-custom-config.component.scss
@@ -36,6 +36,10 @@ input[type=number] {
     position: absolute;
     top: 0.2em;
     right: 2.5rem;
+
+    @media screen and (max-width: $mobile-view) {
+      display: none;
+    }
   }
 
   input[disabled] {
diff --git a/client/src/app/shared/shared-main/buttons/action-dropdown.component.html b/client/src/app/shared/shared-main/buttons/action-dropdown.component.html
index 017355bd0..37cf63fcd 100644
--- a/client/src/app/shared/shared-main/buttons/action-dropdown.component.html
+++ b/client/src/app/shared/shared-main/buttons/action-dropdown.component.html
@@ -18,7 +18,7 @@
           <ng-template #templateActionLabel let-action>
             <my-global-icon *ngIf="action.iconName" [iconName]="action.iconName" [ngClass]="'icon-' + action.iconName" aria-hidden="true"></my-global-icon>
 
-            <div class="d-flex flex-column">
+            <div class="item-label">
               <span i18n>{{ action.label }}</span>
               <small class="muted" *ngIf="action.description">{{ action.description }}</small>
             </div>
diff --git a/client/src/app/shared/shared-main/buttons/action-dropdown.component.scss b/client/src/app/shared/shared-main/buttons/action-dropdown.component.scss
index fe65d6e7e..4c8a591aa 100644
--- a/client/src/app/shared/shared-main/buttons/action-dropdown.component.scss
+++ b/client/src/app/shared/shared-main/buttons/action-dropdown.component.scss
@@ -53,6 +53,8 @@
 }
 
 .dropdown-menu {
+  max-width: 75vw;
+
   .dropdown-header {
     padding: 0.2rem 1rem;
   }
@@ -72,3 +74,13 @@
     }
   }
 }
+
+.item-label {
+  display: flex;
+  flex-direction: column;
+  min-width: 1px;
+
+  > * {
+    @include ellipsis;
+  }
+}
diff --git a/engines.yaml b/engines.yaml
deleted file mode 100644
index 5a68ca4ba..000000000
--- a/engines.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-node: ">=12.x"
-yarn: ">=1.x"
-postgres: ">=10.x"
-redis-server: ">=2.8.18"
-ffmpeg: ">=4.1"
diff --git a/server/controllers/bots.ts b/server/controllers/bots.ts
index 2a8d6863a..a5ce1d79f 100644
--- a/server/controllers/bots.ts
+++ b/server/controllers/bots.ts
@@ -1,7 +1,8 @@
 import { getServerActor } from '@server/models/application/application'
+import { logger } from '@uploadx/core'
 import express from 'express'
 import { truncate } from 'lodash'
-import { SitemapStream, streamToPromise } from 'sitemap'
+import { SitemapStream, streamToPromise, ErrorLevel } from 'sitemap'
 import { buildNSFWFilter } from '../helpers/express-utils'
 import { ROUTE_CACHE_LIFETIME, WEBSERVER } from '../initializers/constants'
 import { asyncMiddleware } from '../middlewares'
@@ -34,7 +35,18 @@ async function getSitemap (req: express.Request, res: express.Response) {
   urls = urls.concat(await getSitemapVideoChannelUrls())
   urls = urls.concat(await getSitemapAccountUrls())
 
-  const sitemapStream = new SitemapStream({ hostname: WEBSERVER.URL })
+  const sitemapStream = new SitemapStream({
+    hostname: WEBSERVER.URL,
+    errorHandler: (err: Error, level: ErrorLevel) => {
+      if (level === 'warn') {
+        logger.warn('Warning in sitemap generation.', { err })
+      } else if (level === 'throw') {
+        logger.error('Error in sitemap generation.', { err })
+
+        throw err
+      }
+    }
+  })
 
   for (const urlObj of urls) {
     sitemapStream.write(urlObj)
@@ -83,7 +95,8 @@ async function getSitemapLocalVideoUrls () {
     url: WEBSERVER.URL + v.getWatchStaticPath(),
     video: [
       {
-        title: v.name,
+        // Sitemap title should be < 100 characters
+        title: truncate(v.name, { length: 100, omission: '...' }),
         // Sitemap description should be < 2000 characters
         description: truncate(v.description || v.name, { length: 2000, omission: '...' }),
         player_loc: WEBSERVER.URL + v.getEmbedStaticPath(),
diff --git a/server/tests/api/notifications/moderation-notifications.ts b/server/tests/api/notifications/moderation-notifications.ts
index da9bd1196..fc953f144 100644
--- a/server/tests/api/notifications/moderation-notifications.ts
+++ b/server/tests/api/notifications/moderation-notifications.ts
@@ -601,7 +601,7 @@ describe('Test moderation notifications', function () {
     })
 
     it('Should not send a notification to moderators on new video without auto-blacklist', async function () {
-      this.timeout(60000)
+      this.timeout(120000)
 
       const name = 'video without auto-blacklist ' + buildUUID()
 
diff --git a/server/tests/misc-endpoints.ts b/server/tests/misc-endpoints.ts
index 9e404b549..663ac044a 100644
--- a/server/tests/misc-endpoints.ts
+++ b/server/tests/misc-endpoints.ts
@@ -3,6 +3,7 @@
 import { expect } from 'chai'
 import { cleanupTests, createSingleServer, makeGetRequest, PeerTubeServer, setAccessTokensToServers } from '@shared/server-commands'
 import { HttpStatusCode, VideoPrivacy } from '@shared/models'
+import { expectLogDoesNotContain } from './shared'
 
 describe('Test misc endpoints', function () {
   let server: PeerTubeServer
@@ -183,6 +184,23 @@ describe('Test misc endpoints', function () {
       expect(res.text).to.contain('<url><loc>http://localhost:' + server.port + '/accounts/user1</loc></url>')
       expect(res.text).to.contain('<url><loc>http://localhost:' + server.port + '/accounts/user2</loc></url>')
     })
+
+    it('Should not fail with big title/description videos', async function () {
+      const name = 'v'.repeat(115)
+
+      await server.videos.upload({ attributes: { name, description: 'd'.repeat(2500), nsfw: false } })
+
+      const res = await makeGetRequest({
+        url: server.url,
+        path: '/sitemap.xml?t=2', // avoid using cache
+        expectedStatus: HttpStatusCode.OK_200
+      })
+
+      await expectLogDoesNotContain(server, 'Warning in sitemap generation')
+      await expectLogDoesNotContain(server, 'Error in sitemap generation')
+
+      expect(res.text).to.contain(`<video:title>${'v'.repeat(97)}...</video:title>`)
+    })
   })
 
   after(async function () {
diff --git a/support/doc/dependencies.md b/support/doc/dependencies.md
index adce70c97..bf53b8080 100644
--- a/support/doc/dependencies.md
+++ b/support/doc/dependencies.md
@@ -2,7 +2,16 @@
 
 :warning: **Warning**: dependencies guide is maintained by the community. Some parts may be outdated! :warning:
 
-Follow the below guides, and check their versions match [required external dependencies versions](https://github.com/Chocobozzz/PeerTube/blob/master/engines.yaml). You can check them automatically via `sudo npx engineslist`.
+Follow the below guides, and check their versions match [required external dependencies versions](https://github.com/Chocobozzz/PeerTube/blob/master/engines.yaml).
+
+Main dependencies version supported by PeerTube:
+
+ * `node` >=14.x
+ * `yarn` >=1.x
+ * `postgres` >=10.x
+ * `redis-server` >=5.x
+ * `ffmpeg` >=4.3
+
 
 _note_: only **LTS** versions of external dependencies are supported. If no LTS version matching the version constraint is available, only **release** versions are supported.
 
@@ -64,6 +73,7 @@ sudo apt update
 sudo apt install certbot nginx ffmpeg postgresql postgresql-contrib openssl g++ make redis-server git cron wget
 ffmpeg -version # Should be >= 4.1
 g++ -v # Should be >= 5.x
+redis-server --version # Should be >= 5.x
 ```
 
 Now that dependencies are installed, before running PeerTube you should start PostgreSQL and Redis:
@@ -263,6 +273,7 @@ This is necessary because `ffmpeg` is not in the Fedora repos.
 sudo dnf install nginx ffmpeg postgresql-server postgresql-contrib openssl gcc-c++ make redis git vim
 ffmpeg -version # Should be >= 4.1
 g++ -v # Should be >= 5.x
+redis-server --version # Should be >= 5.x
 ```
 
 8. Configure nginx