Prepare release 1.15 (#142)

* Prepare release 1.15

Signed-off-by: Mars Hall <[email protected]>

* docs for Releasing a New Version

Signed-off-by: Mars Hall <[email protected]>

* Correct & clarify release instructions

Co-authored-by: Ed Morley <[email protected]>
Signed-off-by: Mars Hall <[email protected]>

* Update release date for when it's really happening

Co-authored-by: Ed Morley <[email protected]>
Signed-off-by: Mars Hall <[email protected]>

---------

Signed-off-by: Mars Hall <[email protected]>
Co-authored-by: Ed Morley <[email protected]>

Author: mars

CHANGELOG.md

@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased] - YYYY-MM-DD
 ### Changes
+
+## [1.15] - 2025-07-21
+### Changes
 - `start-nginx-static` now crashes when misconfigured
 
 ## [1.14] - 2025-06-30

README.md

@@ -121,3 +121,17 @@ _Ruby versions are downloaded from heroku-buildpack-ruby's distribution site. On
 Revise the `ruby_version` variable in `bin/compile`.
 
 Then, commit & pull-request the resulting changes.
+
+## Releasing a New Version
+
+_Only maintainers of this buildpack can make releases._
+
+_Replace "X.X" with the new version number._
+
+1. Update `CHANGELOG.md`, moving the **[unreleased] - YYYY-MM-DD** section contents into a new version section for version X.X
+2. Create a branch `preparing-release-X.X` with PR **Preparing release X.X**
+3. Get the PR approved
+4. Merge the approved PR
+5. Create a new [GitHub release](https://github.com/heroku/heroku-buildpack-nginx/releases) for the new version, targetting `main`, with name and tag of form `vX.Y`.
+6. Publish a new release in the Heroku Buildpack Registry, using either [plugin-buildpack-registry](https://github.com/heroku/plugin-buildpack-registry) and `heroku buildpacks:publish heroku-community/nginx <git_tag>`, or else the [buildpacks dashboard](https://addons-next.heroku.com/buildpacks/cf2713a5-65d0-4bc8-8dd2-b00d8d4f03f4/publish).
+