diff --git a/devdocs/modernization/NET10-PORT.md b/devdocs/modernization/NET10-PORT.md
index 964f644b..4d2cb9af 100644
--- a/devdocs/modernization/NET10-PORT.md
+++ b/devdocs/modernization/NET10-PORT.md
@@ -145,7 +145,7 @@ suite is waiting on (case 4653, case 4654, the contract issue).
   - Self-hosted Linux customers (server and desktop zips are framework-dependent)
   - Windows LAN: `lan.iss` prompts for the ASP.NET Core Hosting Bundle. Text and link updated to .NET 10 (2026-10-23); installer test still in section 4
   - Windows standalone and the launcher are self-contained: no runtime needed on the customer's machine
-- [ ] Customer manual (`docs/`): system requirements and upgrade instructions for self-hosted customers. Report browser move (section 3): manual already updated in the same commit (`ops-config-report-render-browser-path.md`, `ops-install-linux-server.md`, `ops-upgrade-linux-server.md`, `ops-upgrade-linux-desktop.md`). The pre-8.2.0 upgrade scripts on the two upgrade pages still install `aspnetcore-runtime-8.0`: update with the .NET 10 runtime instructions
+- [x] Customer manual (`docs/`): system requirements and upgrade instructions for self-hosted customers. Report browser move (section 3): manual already updated in the same commit (`ops-config-report-render-browser-path.md`, `ops-install-linux-server.md`, `ops-upgrade-linux-server.md`, `ops-upgrade-linux-desktop.md`). .NET 10 runtime install and upgrade steps (Windows LAN and IIS, Linux server and desktop), Ubuntu 24.04/26.04, backup password note and the 8.3.0 changelog draft: `111d7922` (2026-10-23). Changelog wording to be finalised by John before release
 - [ ] Build machines: the workstation already has the .NET 10 SDK (10.0.103). The backup laptop needs it before it can build 8.3.0 (`winget install --id Microsoft.DotNet.SDK.10 -e --source winget`; the .NET 8 SDK is no longer needed); tracked with the laptop's other catch-up items in `devdocs/build/BUILD.md`. `devdocs/build/DEV-VM-SETUP.md` and `devdocs/build/BUILD.md` updated (2026-10-23). The build VM is deprecated (John, 2026-10-23): n/a
 - [ ] Final gate runs on the finished code
 - [ ] Merge, per repo: