Package installer in releases and expand Renovate dependency updates

README.md

@@ -74,6 +74,16 @@ and permissions are preserved. `XDG_CONFIG_HOME`, `XDG_CACHE_HOME` and `ZDOTDIR`
 are respected. Alias files and installed shell completions are regenerated.
 Open a **new terminal** after updating to load the new aliases and hooks.
 
+### Release downloads and change history
+
+Each new release includes `install.sh`, binaries for Linux and macOS (amd64 and
+arm64), and `checksums.txt` covering all of these files. The release notes include
+an installation command pointing directly to that release's `install.sh` asset
+and a list of changes since the previous version tag.
+
+See [CHANGELOG.md](CHANGELOG.md) for the change history. The installer attached to
+a release installs or updates to the latest published binary release.
+
 ### Build from source
 
 ```sh
@@ -506,6 +516,10 @@ Both are non-blocking — the refresh runs as a background process and never del
 
 ## Development
 
+Renovate monitors the release workflow's actions, the Go version in `go.mod`, and
+all direct and indirect Go module dependencies. Go dependency updates also run
+`go mod tidy` to keep `go.mod` and `go.sum` consistent.
+
 ```sh
 go test ./...        # includes offline installer/update tests
 go build ./...       # build all packages