diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b37033ae..68fb73a27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Format based on [Keep a Changelog](https://keepachangelog.com/).
 - `project.yaml` — technical project descriptor with version, architecture, simulation, and content model as the canonical version source of truth
 - 4 ambient zone loops: station base, workplace, bar, corridor — SAO-generated organic soundscape with crossfade loop points (#327)
 - 2 footstep SFX: metal walk and run — SAO hybrid with best-transient extraction (#327)
+- `audio-batch` command — batch audio generation from JSON manifests, supports SAO and harmonic synthesis, with `--dry-run`, `--only`, and `--skip-existing` flags
+- `--post` and `--output-ogg` flags on `audio-generate` — chain post-processing (trim, normalize, convert) into a single command
 
 ### Changed
 - Monologue chimes replaced with production-quality manual synthesis — insert-tech aesthetic per D-074, pure sine harmonics with mathematical envelopes (#327)