diff --git a/docs/releases/v3.1.0.md b/docs/releases/v3.1.0.md
new file mode 100644
index 0000000..094bb4e
--- /dev/null
+++ b/docs/releases/v3.1.0.md
@@ -0,0 +1,35 @@
+# Audita v3.1.0
+
+This minor release updates Audita's configuration, LLM, and release libraries
+and raises the minimum Go version for source builds to 1.26.0. Existing Audita
+configuration files, PromptKit profiles, and CLI usage require no migration.
+
+## Changes
+
+- ConfigKit is updated from v0.5.0 to v0.7.1, with improvements to configuration
+  loading, resolution, provenance, and inspection efficiency.
+- PromptKit is updated from v0.12.0 to v0.14.0, reducing avoidable allocations in
+  preparation, rendering, and execution. Audita retains its existing schemas,
+  validation, retry and repair budgets, and resilient processing behavior.
+  The libraries' new discovery and configuration-comparison APIs remain unused
+  by Audita.
+- ReleaseKit is updated from v0.1.0 to v0.4.1. The local release launcher now
+  invokes the module-selected Go tool, and CI selects the tool from the tagged
+  module metadata. Prepared-checkout delivery reuses the tag checkout already
+  verified during CI bootstrap. Source publication still completes at a
+  successful tag push; Linux binary delivery remains asynchronous.
+- Release builds and CI use Go 1.26.8, with corresponding runtime attribution
+  updated. The source-build minimum is tracked separately from that build
+  toolchain patch version.
+
+## Upgrading from v3.0.1
+
+Source builders must upgrade from the previous Go 1.25.5 minimum to **Go 1.26.0
+or newer**, including any build environments still using Go 1.25. Maintainers
+should follow the updated [release procedure](../release.md) for toolchain setup,
+publication, and delivery recovery.
+
+Users of distributed Linux binaries need no Go installation. No configuration,
+profile, transcript-format, or CLI migration is required for this release.
+
+[COPYRIGHT](https://gitea.maximumdirect.net/eric/audita/src/tag/v3.1.0/COPYRIGHT) | [LICENSE](https://gitea.maximumdirect.net/eric/audita/src/tag/v3.1.0/LICENSE) | [ATTRIBUTION](https://gitea.maximumdirect.net/eric/audita/src/tag/v3.1.0/docs/oss/attribution.md)