diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d1b350183..b0432dc0e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,5 +1,5 @@
 {
-  ".": "1.11.0",
+  ".": "1.12.0",
   "packages/loop_common": "0.1.0",
   "packages/loop_interpolation": "0.2.0",
   "packages/loop_interpolation_core": "0.1.0",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e51a46d87..e38d1256b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,28 @@
 # Changelog
 
+## [1.12.0](https://github.com/Loop3D/LoopStructural/compare/v1.11.0...v1.12.0) (2026-11-05)
+
+
+### Features
+
+* **native:** solve structural frames, use the cg iteration limit, and keep no stale field ([#383](https://github.com/Loop3D/LoopStructural/issues/383)) ([4f8a582](https://github.com/Loop3D/LoopStructural/commit/4f8a5825f662e5197cf2548356736d9db335c7c7))
+
+
+### Bug Fixes
+
+* coordinate and fault-frame correctness, stage S1 (spec 005) ([#392](https://github.com/Loop3D/LoopStructural/issues/392)) ([03a6e58](https://github.com/Loop3D/LoopStructural/commit/03a6e58bdd2f528fc193368df0c3e2617f2d329b))
+* fold frames, stage S2 (spec 005) ([#396](https://github.com/Loop3D/LoopStructural/issues/396)) ([f439905](https://github.com/Loop3D/LoopStructural/commit/f4399054f33a249dd3d3b516aef175076c941235))
+* make scalar_field / block-model grids line up with their values ([#364](https://github.com/Loop3D/LoopStructural/issues/364)) ([916246e](https://github.com/Loop3D/LoopStructural/commit/916246e11888b921758e0f67e68db58b57b71021))
+* saved interpolator frames, copies and stale-frame check, stage S3 (spec 005) ([#397](https://github.com/Loop3D/LoopStructural/issues/397)) ([e5ff480](https://github.com/Loop3D/LoopStructural/commit/e5ff4803695987b4af9cfb63e8349d640e9483ac))
+
+
+### Documentation
+
+* accept the project constitution ([04a35c9](https://github.com/Loop3D/LoopStructural/commit/04a35c9f78cab5b0fb56065b547e6ae01ba45b6e))
+* adding 005 and updating 003,004 ([0ed5a8b](https://github.com/Loop3D/LoopStructural/commit/0ed5a8b6d0a01de428595f73b1cf04ee72d20e41))
+* make the documentation build complete ([#365](https://github.com/Loop3D/LoopStructural/issues/365)) ([3d7e240](https://github.com/Loop3D/LoopStructural/commit/3d7e240358cc072650177c53fcb6a70bf17f806e))
+* **spec:** spec 003, faster evaluation of faulted models ([#384](https://github.com/Loop3D/LoopStructural/issues/384)) ([45dae3b](https://github.com/Loop3D/LoopStructural/commit/45dae3b1443a5052c7c497a7b481d616983c4315))
+
 ## [1.11.0](https://github.com/Loop3D/LoopStructural/compare/v1.10.0...v1.11.0) (2026-11-01)
 
 
diff --git a/pyproject.toml b/pyproject.toml
index e5bade632..a5daff022 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = 'setuptools.build_meta'
 
 [project]
 name = 'LoopStructural'
-version = "1.11.0"
+version = "1.12.0"
 description = '3D geological modelling'
 authors = [{ name = 'Lachlan Grose', email = 'lachlan.grose@monash.edu' }]
 readme = 'README.md'