Update changelog for release 1.56.0 (#2786)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: jason plumb <75337021+breedx-splk@users.noreply.github.com>

Author: 3 people

CHANGELOG.md

@@ -2,6 +2,43 @@
 
 ## Unreleased
 
+### Dynamic control
+
+- Add SourceFormat string to enum conversion
+  ([#2737](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2737))
+- Add policy config model classes (record-style structure)
+  ([#2736](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2736))
+- Add config parsing for both JSON and YAML
+  ([#2738](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2738))
+- Add OpampPolicyProvider for the policy pipeline
+  ([#2748](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2748))
+- Create providers from SourceKind
+  ([#2749](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2749))
+- Use composable samplers and add sampler initialization
+  ([#2752](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2752))
+- Add PolicyTypeInitializer interface for better readability
+  ([#2754](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2754))
+
+### GCP resources
+
+- Unify gcp resource detector
+  ([#2747](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2747))
+
+### JMX scraper
+
+- Pin bouncycastle to 1.84 to fix CVE-2026-0636, CVE-2026-5588, CVE-2026-5598
+  ([#2783](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2783))
+
+### OpAMP client
+
+- Improve error handling
+  ([#2778](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2778))
+### Processors
+
+- Add FilteringSpanExporter with composable SpanFilter and TraceFilter interfaces
+  ([#2745](https://github.com/open-telemetry/opentelemetry-java-contrib/pull/2745))
+
+
 ## Version 1.55.0 (2026-03-31)
 
 ### Disk buffering

RELEASING.md

@@ -28,6 +28,10 @@ the second Monday of the month (roughly a couple of days after the monthly minor
 * Merge a pull request to `main` updating the `CHANGELOG.md`.
   * The heading for the unreleased entries should be `## Unreleased`.
   * Use `.github/scripts/draft-change-log-entries.sh` as a starting point for writing the change log.
+    The script requires the previous release tag to be present locally. If you get an error like
+    `fatal: ambiguous argument 'vX.Y.0..HEAD'`, sync tags from the canonical remote first (for
+    example, `upstream` if configured, otherwise `origin`):
+    `git fetch upstream --tags` or, if your canonical remote is named origin `git fetch origin --tags`
 * Run the [Prepare release branch workflow](https://github.com/open-telemetry/opentelemetry-java-contrib/actions/workflows/prepare-release-branch.yml).
   * Press the "Run workflow" button, and leave the default branch `main` selected.
   * Review and merge the two pull requests that it creates

mise.toml

@@ -19,7 +19,6 @@ use_file_shell_for_executable_tasks = true
 
 [tasks.lint]
 description = "Run markdown and link linting"
-raw_args = true
 run = "flint run"
 
 [tasks."lint:fix"]