From f68e1bd043fba7fb0ce4b7e97c9e3c46dbdbff0e Mon Sep 17 00:00:00 2001
From: "fluxopt-release[bot]"
 <267260463+fluxopt-release[bot]@users.noreply.github.com>
Date: Sun, 9 Aug 2026 16:09:44 +0000
Subject: [PATCH] chore(main): release 0.0.1-alpha.70

---
 .release-please-manifest.json |  2 +-
 CHANGELOG.md                  | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 322370779..f94b63dde 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.0.1-alpha.69"
+  ".": "0.0.1-alpha.70"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1936fbd12..1eff7808e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.0.1-alpha.70](https://github.com/FBumann/lpspec/compare/v0.0.1-alpha.69...v0.0.1-alpha.70) (2026-08-09)
+
+
+### Features
+
+* **language:** at() — the pullback of group_sum ([#489](https://github.com/FBumann/lpspec/issues/489)) ([e7ce036](https://github.com/FBumann/lpspec/commit/e7ce036f9533e3ffd6dbb02110b1dfd35cb28c0a))
+
+
+### Performance
+
+* **polars:** two group_sums collide only where the coordinates meet, and the matrix leaves in row order ([#487](https://github.com/FBumann/lpspec/issues/487)) ([53621b1](https://github.com/FBumann/lpspec/commit/53621b1894119e845e4b2a75b1ba4abe4cb043da))
+
 ## [0.0.1-alpha.69](https://github.com/FBumann/lpspec/compare/v0.0.1-alpha.68...v0.0.1-alpha.69) (2026-08-09)