diff --git a/.bazelignore b/.bazelignore
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--- a/.bazelignore
+++ b/.bazelignore
@@ -4,3 +4,4 @@ out
 cmake-build-debug
 third_party
 
+.clwb
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diff --git a/ReleaseHowTo.md b/ReleaseHowTo.md
new file mode 100644
index 0000000..47aaeaf
--- /dev/null
+++ b/ReleaseHowTo.md
@@ -0,0 +1,89 @@
+
+
+
+
+https://github.com/tzaeschke/phtree-cpp/releases/v1.6.2/download/v1.6.2.tar.gz
+
+
+# Create Release
+
+
+## Verify code
+
+### Run examples
+```shell
+bazel run //examples:example
+```
+
+### Test release with
+- test-phtree-cpp-bazel
+- test-phtree-cpp-cmake
+
+### Compilers
+
+- Test with gcc + clang on Linux
+- Test with VisualStudio on Windows
+- Update references of tested compilers in README.md
+
+## Create Archive
+
+```bash
+git archive --format=zip v1.6.2 > phtree-cpp-v1.6.2.zip
+```
+
+Upload to GitHub release.
+
+Resulting link:
+```
+https://github.com/tzaeschke/phtree-cpp/releases/download/v1.6.2/phtree-cpp-v1.6.2.zip
+```
+
+
+## Bazel Central Repository -- Unfinished documentation
+
+Documentation: 
+https://github.com/bazelbuild/bazel-central-registry/blob/main/docs/README.md
+
+
+PH-Tree build target:
+```
+bazel build //:phtree
+```
+
+#### Start
+
+Checkout personal fork of bazel-central-registry.
+Create branch `phtree-cpp@1.6.2`.
+
+#### After modifying any file
+
+Recreate hashes for `source.json`
+```shell
+bazel run -- //tools:update_integrity phtree-cpp
+```
+ This also accepts `--version` but defaults to latest version.
+
+#### Validate 
+
+```shell
+bazel run -- //tools:bcr_validation --check=phtree-cpp@1.6.2
+```
+
+#### Test locally
+
+```bash
+bazel run //tools:setup_presubmit_repos -- --module phtree-cpp@1.6.2
+```
+
+There is also a GitHub action for release automation:
+https://github.com/bazel-contrib/publish-to-bcr
+
+
+#### Test with Test repos
+
+Check out `test-phtree-cpp-bazel` and run:
+
+```shell
+bazel shutdown && bazel build --enable_bzlmod --registry="file:///home/.../bazel-central-registry" --lockfile_mode=off @phtree-cpp//:phtree-cpp
+--> Target might be incorrect
+```
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