feat: Release notes for Codacy Self-hosted 16.0.0

Author: heliocodacy

docs/release-notes/self-hosted/self-hosted-v16.0.0.md

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+---
+rss_title: Codacy release notes RSS feed
+rss_href: /feed_rss_created.xml
+description: Release notes for Codacy Self-hosted v16.0.0.
+codacy_tools_version_old: https://github.com/codacy-sh/codacy-tools-sh/releases/tag/1.2.19
+codacy_tools_version_new: https://github.com/codacy-sh/codacy-tools-sh/releases/tag/1.2.21
+---
+
+# Self-hosted v16.0.0
+
+These release notes are for [Codacy Self-hosted v16.0.0](https://github.com/codacy/chart/releases/tag/16.0.0){: target="_blank"}, released on January 15, 2026.<!-- TODO Update release date -->
+
+📢 [Visit the Codacy roadmap](https://roadmap.codacy.com) and <span class="skip-vale">let us know</span> your feedback on both new and planned product updates!
+
+<!--TODO Check these issues manually
+
+Jira issues without release notes
+
+Epics:
+Bugs and other issues:
+
+Jira issues with disabled release notes
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+Epics:
+Bugs and other issues:
+-->
+
+## Upgrading Codacy Self-hosted
+
+Follow the steps below to upgrade to Codacy Self-hosted v16.0.0:
+
+1.  Check the [release notes for all Codacy Self-hosted versions](../index.md#self-hosted) **between your current version and the most recent version** for breaking changes and follow the instructions provided <span class="skip-vale">carefully</span>.
+
+1.  Follow the instructions to [upgrade your Codacy Self-hosted instance](https://docs.codacy.com/v16.0/chart/maintenance/upgrade/).
+
+1.  Update your Codacy command-line tools to the following versions:<!--TODO Update CLI tool versions-->
+
+    -   [Codacy Analysis CLI MAJOR.MINOR.PATCH](https://github.com/codacy/codacy-analysis-cli/releases/tag/MAJOR.MINOR.PATCH)
+    -   [Codacy Coverage Reporter MAJOR.MINOR.PATCH](https://github.com/codacy/codacy-coverage-reporter/releases/tag/MAJOR.MINOR.PATCH)
+
+## Product enhancements
+
+
+## Bug fixes
+
+
+## Tool versions
+
+This version of Codacy Self-hosted includes the tool versions below. The tools that were updated on this version are highlighted in bold:
+