diff --git a/CHANGELOG.md b/CHANGELOG.md
index 52bb3b94b..aeae72747 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,83 +6,86 @@ and this project adheres to
 
 ## [Unreleased]
 
+## [v6.0.0] - 2026-10-05
+
 ### Added
 
-- 👷(ci) lint, typecheck, build and test the collaboration server (yhub)
-- 👷(ci) check the load-test tooling: swarm, canary, k6 and dashboards
-- 👷(ci) cancel the superseded runs of a pull request
+- 👷(ci) lint, typecheck, build and test the collaboration server (yhub) #2757
+- 👷(ci) check the load-test tooling: swarm, canary, k6 and dashboards #2757
+- 👷(ci) cancel the superseded runs of a pull request #2757
 - ✨(backend) add mention endpoint with cooldown-limited email
   notification #2447
 - 🚩(setting) add feature flag on Duplicate with Children #2721
 - 💄(frontend) redesign 404 error standalone page #2696
 - 💄(frontend) redesign 403 access denied page #2720
 - ✨(frontend) duplicate with subdocuments #2584
+- ✨(frontend) add markdown download option #2608
+- ✨(frontend) turn pasted doc links into interlinks #2713
 - ✨(helm) allow disallowing search engine indexing per instance #2694
-- 🐛(frontend) reduce PostHog volume from web vitals and opt_in spam #2701
 - ✨(backend) expose the attachment max size in the config endpoint #2577
 - ✨(frontend) warn before uploading an attachment over the size limit #2577
-- ✨(loadtest) add a websocket load generator for the collaboration server
+- ✨(loadtest) add a websocket load generator for the collaboration
+  server #2556
 - ✨(loadtest) add k6 scenarios for the page-open sequence and the heavy
-  endpoints
-- ✨(loadtest) add browser canaries measuring what a user feels under load
+  endpoints #2556
+- ✨(loadtest) add browser canaries measuring what a user feels under
+  load #2556
 - ✨(loadtest) add the grafana dashboards of the load-test campaign, valkey
-  included
-- 📝(documentation) add the load-testing guide
+  included #2556
+- 📝(documentation) add the load-testing guide #2556
 - 🔧(helm) run grafana with those dashboards in the dev cluster, in place of
-  the prometheus console
+  the prometheus console #2556
 - ✨(backend) measure the calls to yhub and to the converters, the database
-  pool and the celery queue
+  pool and the celery queue #2556
 - ✨(backend) add a `LoadTest` configuration and its `loadtest` application,
-  minting sessions for load tests
+  minting sessions for load tests #2556
 - ✨(collaboration) add opt-in prometheus metrics to yhub, server and worker,
-  protected by a bearer token
+  protected by a bearer token #2556
 - ✨(collaboration) report yhub errors to sentry, configured through
-  `SENTRY_*`
+  `SENTRY_*` #2556
 - ✨(backend) add opt-in prometheus metrics on `/metrics`, protected by a
-  bearer token
+  bearer token #2556
 - ✨(helm) add a dedicated ingress for the prometheus metrics of the backend
-  and of yhub
+  and of yhub #2556
 - ✨(helm) add a ServiceMonitor and a PodMonitor per component whose metrics
-  are enabled, and `backend.metrics.enabled`
+  are enabled, and `backend.metrics.enabled` #2556
 - 🔧(helm) scrape the metrics of the dev cluster with a trimmed
-  kube-prometheus-stack and the ServiceMonitors of the chart
+  kube-prometheus-stack and the ServiceMonitors of the chart #2556
 - 🔧(helm) serve the example console of django-prometheus on the dev
-  Prometheus
-- ✨(backend) add a service generating cached RS256 JWT tokens
-- ✨(backend) publish the JWT public key on a JWKS endpoint
-- 🔧(dev) generate the JWT signing key when bootstrapping the dev stack
-- ✨(collaboration) add an admin reset-connections endpoint on yhub
-- ✨(collaboration) add a create-ydoc endpoint on yhub
-- 🔧(backend) fine tune redis cache options
-- ✨(frontend) make the full last-update date available #1215
-- ✨(collaboration) soft-migrate legacy S3 documents into yhub
-- ✨(collaboration) replay legacy s3 version history into yhub
-- ✨(backend) add a service to call the yhub REST API
-- ✨(backend) call YHubService to seed initial document content
-- ✨(collaboration) add a get-ydoc endpoint on yhub
-- ✨(backend) duplicate a document through the collaboration server
-- ✨(backend) serve `documents/{id}/formatted-content/` from yhub
-- ✨(collaboration) notify the backend when the worker persists new content
-- 🐛(frontend) stop reconnecting to the websocket based on the status code
-- ✨(collaboration) let a user read the document's editing history
-- ✨(frontend) fall back to http polling when the websocket cannot be opened.
+  Prometheus #2556
+- ✨(backend) add a service generating cached RS256 JWT tokens #2556
+- ✨(backend) publish the JWT public key on a JWKS endpoint #2556
+- 🔧(dev) generate the JWT signing key when bootstrapping the dev stack #2556
+- ✨(collaboration) add an admin reset-connections endpoint on yhub #2556
+- ✨(collaboration) add a create-ydoc endpoint on yhub #2556
+- ✨(collaboration) soft-migrate legacy S3 documents into yhub #2556
+- ✨(collaboration) replay legacy s3 version history into yhub #2556
+- ✨(backend) add a service to call the yhub REST API #2556
+- ✨(backend) call YHubService to seed initial document content #2556
+- ✨(collaboration) add a get-ydoc endpoint on yhub #2556
+- ✨(backend) duplicate a document through the collaboration server #2556
+- ✨(backend) serve `documents/{id}/formatted-content/` from yhub #2556
+- ✨(collaboration) notify the backend when the worker persists new
+  content #2556
+- ✨(collaboration) let a user read the document's editing history #2556
+- ✨(frontend) fall back to http polling when the websocket cannot be
+  opened. #2556
 - 🔧(collaboration) make the version-history granularity configurable through
-  `COLLABORATION_VERSION_GRANULARITY_MS`
+  `COLLABORATION_VERSION_GRANULARITY_MS` #2556
 - ✨(frontend) keep a local copy of documents, so they open and stay editable
-  offline
-- 🐛(frontend) stop the service worker from caching the collaboration server's
-  rest api
+  offline #2556
 
 ### Changed
 
 - 🛂(backend) let users allowed to comment list each other's accesses #2447
-- ♻️(collaboration) migrate the collaboration server from hocuspocus to yhub
-- 💥(y-provider) y-provider becomes converter-only
+- ♻️(collaboration) migrate the collaboration server from hocuspocus to
+  yhub #2556
+- 💥(y-provider) y-provider becomes converter-only #2556
 - 💥(backend) move the resource server JWKS from `/api/{version}/jwks` to
-  `/external_api/{version}/jwks`
-- 🔧(collaboration) adapt docker stack for development purpose
-- 🔧(helm) run a valkey for the backend and one for yhub in dev and feature
-- ✨(frontend) turn pasted doc links into interlinks #2713
+  `/external_api/{version}/jwks` #2556
+- 🔧(collaboration) adapt docker stack for development purpose #2556
+- 🔧(helm) run a valkey for the backend and one for yhub in dev and
+  feature #2556
 - 💄(frontend) redesign 401 error standalone page #2716
 
 ### Fixed
@@ -94,8 +97,8 @@ and this project adheres to
 - 🐛(frontend) cache hashed `/_next/static/` assets and revalidate HTML #2770
 - 🐛(backend) compensate document duplication failures #2755
 - 🐛(frontend) open search results in a new tab with ctrl/cmd+click #2719
-- 🐛(docker) pull minio images from pgsty
-- 🐛(backend) retry the duplicate of a document on a tree path collision
+- 🐛(docker) pull minio images from pgsty #2739
+- 🐛(backend) retry the duplicate of a document on a tree path collision #2726
 - 🐛(frontend) keep caption and alignment when replacing an image #2730
 - 🐛(backend) reset the collaboration connections on every access change #2725
 - ⚡️(backend) coalesce and pace the resets of collaboration connections #2725
@@ -106,18 +109,24 @@ and this project adheres to
 - 📝(docs) fix markdown typo in installation README #2766
 - 🐛(i18n) export locale correctly #2750
 - 🐛(frontend) keep login and logout out of the service worker cache #2771
+- 🐛(frontend) reduce PostHog volume from web vitals and opt_in spam #2701
+- 🐛(frontend) stop reconnecting to the websocket based on the status
+  code #2556
+- 🐛(frontend) stop the service worker from caching the collaboration server's
+  rest api #2556
 
 ### Removed
 
-- 🔥(backend) remove the unused `CollaborationService`
-- 💥(backend) remove the `documents/{id}/can-edit/` endpoint
-- 💥(backend) remove the `documents/{id}/content/` endpoint
-- 🔥(backend) remove the document version endpoints.
-- 🔥(backend) remove `Document.content`
+- 🔥(backend) remove the unused `CollaborationService` #2556
+- 💥(backend) remove the `documents/{id}/can-edit/` endpoint #2556
+- 💥(backend) remove the `documents/{id}/content/` endpoint #2556
+- 🔥(backend) remove the document version endpoints. #2556
+- 🔥(backend) remove `Document.content` #2556
 
 ### Security
 
-- 🔒️(collaboration) stop read-only users from sharing their cursor
+- 🔒️(collaboration) stop read-only users from sharing their cursor #2556
+- 🔒️(backend) fix race conditions between actions updating a docs #2781
 
 ## [v5.7.0] - 2026-09-15
 
@@ -126,7 +135,6 @@ and this project adheres to
 - 🔧(backend) fine tune redis cache options #2658
 - ✨(frontend) make the full last-update date available #1215
 - 💄(frontend) redesign email confirmation standalone page #2601
-- ✨(frontend) add markdown download option #2608
 
 ### Changed
 
@@ -1636,7 +1644,8 @@ and this project adheres to
 - ✨(frontend) Coming Soon page (#67)
 - 🚀 Impress, project to manage your documents easily and collaboratively.
 
-[unreleased]: https://github.com/suitenumerique/docs/compare/v5.7.0...main
+[unreleased]: https://github.com/suitenumerique/docs/compare/v6.0.0...main
+[v6.0.0]: https://github.com/suitenumerique/docs/releases/v6.0.0
 [v5.7.0]: https://github.com/suitenumerique/docs/releases/v5.7.0
 [v5.6.1]: https://github.com/suitenumerique/docs/releases/v5.6.1
 [v5.6.0]: https://github.com/suitenumerique/docs/releases/v5.6.0
diff --git a/UPGRADE.md b/UPGRADE.md
index 976a06670..bf20282c1 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -16,6 +16,8 @@ the following command inside your docker container:
 
 ## [Unreleased]
 
+## [6.0.0] - 2026-10-05
+
 ⚠️ This release replaces the collaboration server. The content of a document
 does not live in the object storage anymore, it lives in that server, and the
 `y-provider` that used to serve the websocket does not serve it. There is a new
diff --git a/src/backend/pyproject.toml b/src/backend/pyproject.toml
index 0a1462e5d..3f9865b15 100644
--- a/src/backend/pyproject.toml
+++ b/src/backend/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = "uv_build"
 
 [project]
 name = "impress"
-version = "5.7.0"
+version = "6.0.0"
 authors = [{ "name" = "DINUM", "email" = "dev@mail.numerique.gouv.fr" }]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
diff --git a/src/backend/uv.lock b/src/backend/uv.lock
index c0b67e997..9ceb87d76 100644
--- a/src/backend/uv.lock
+++ b/src/backend/uv.lock
@@ -964,7 +964,7 @@ wheels = [
 
 [[package]]
 name = "impress"
-version = "5.7.0"
+version = "6.0.0"
 source = { editable = "." }
 dependencies = [
     { name = "beautifulsoup4" },
diff --git a/src/frontend/apps/e2e/package.json b/src/frontend/apps/e2e/package.json
index 6502cdd2c..87463e862 100644
--- a/src/frontend/apps/e2e/package.json
+++ b/src/frontend/apps/e2e/package.json
@@ -1,6 +1,6 @@
 {
   "name": "app-e2e",
-  "version": "5.7.0",
+  "version": "6.0.0",
   "repository": "https://github.com/suitenumerique/docs",
   "author": "DINUM",
   "license": "MIT",
diff --git a/src/frontend/apps/impress/package.json b/src/frontend/apps/impress/package.json
index 27f8eff58..81cda8db0 100644
--- a/src/frontend/apps/impress/package.json
+++ b/src/frontend/apps/impress/package.json
@@ -1,6 +1,6 @@
 {
   "name": "app-impress",
-  "version": "5.7.0",
+  "version": "6.0.0",
   "repository": "https://github.com/suitenumerique/docs",
   "author": "DINUM",
   "license": "MIT",
diff --git a/src/frontend/package.json b/src/frontend/package.json
index 6e561008c..ab0fdaa7a 100644
--- a/src/frontend/package.json
+++ b/src/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "impress",
-  "version": "5.7.0",
+  "version": "6.0.0",
   "private": true,
   "repository": "https://github.com/suitenumerique/docs",
   "author": "DINUM",
diff --git a/src/frontend/packages/eslint-plugin-docs/package.json b/src/frontend/packages/eslint-plugin-docs/package.json
index cfb9db205..9ecf03876 100644
--- a/src/frontend/packages/eslint-plugin-docs/package.json
+++ b/src/frontend/packages/eslint-plugin-docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "eslint-plugin-docs",
-  "version": "5.7.0",
+  "version": "6.0.0",
   "repository": "https://github.com/suitenumerique/docs",
   "author": "DINUM",
   "license": "MIT",
diff --git a/src/frontend/packages/i18n/package.json b/src/frontend/packages/i18n/package.json
index 3dc661d7c..6158e341c 100644
--- a/src/frontend/packages/i18n/package.json
+++ b/src/frontend/packages/i18n/package.json
@@ -1,6 +1,6 @@
 {
   "name": "packages-i18n",
-  "version": "5.7.0",
+  "version": "6.0.0",
   "repository": "https://github.com/suitenumerique/docs",
   "author": "DINUM",
   "license": "MIT",
diff --git a/src/frontend/servers/y-provider/package.json b/src/frontend/servers/y-provider/package.json
index 921a6de68..ef6a6a369 100644
--- a/src/frontend/servers/y-provider/package.json
+++ b/src/frontend/servers/y-provider/package.json
@@ -1,6 +1,6 @@
 {
   "name": "server-y-provider",
-  "version": "5.7.0",
+  "version": "6.0.0",
   "description": "Y.js provider for docs",
   "repository": "https://github.com/suitenumerique/docs",
   "license": "MIT",
diff --git a/src/helm/impress/Chart.yaml b/src/helm/impress/Chart.yaml
index 31aea3643..0b389d0a0 100644
--- a/src/helm/impress/Chart.yaml
+++ b/src/helm/impress/Chart.yaml
@@ -1,5 +1,5 @@
 apiVersion: v2
 type: application
 name: docs
-version: 6.0.0-alpha.2
+version: 6.0.0
 appVersion: latest
diff --git a/src/mail/package.json b/src/mail/package.json
index cdb686b63..a5ffe9789 100644
--- a/src/mail/package.json
+++ b/src/mail/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mail_mjml",
-  "version": "5.7.0",
+  "version": "6.0.0",
   "description": "An util to generate html and text django's templates from mjml templates",
   "type": "module",
   "dependencies": {
diff --git a/src/yhub-server/package.json b/src/yhub-server/package.json
index 64bc8ecdb..0ba03afc8 100644
--- a/src/yhub-server/package.json
+++ b/src/yhub-server/package.json
@@ -1,5 +1,6 @@
 {
   "name": "yhub-server",
+  "version": "6.0.0",
   "private": true,
   "type": "module",
   "scripts": {