diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d1b35018..b0432dc0 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 e51a46d8..2803c936 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,31 @@
 # 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))
+* keep the legacy interpolator load backward compatible until the next major release (spec 005 S3) ([#400](https://github.com/Loop3D/LoopStructural/issues/400)) ([f0aa71f](https://github.com/Loop3D/LoopStructural/commit/f0aa71f51780e53de5193d77ce6235d44441985c))
+* 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))
+* resize paths, non-mutating diagnostics and residual report, stage S5 (spec 005) ([#402](https://github.com/Loop3D/LoopStructural/issues/402)) ([e1c10ef](https://github.com/Loop3D/LoopStructural/commit/e1c10ef68bbc320d21e8a4befd9b648be20b11c0))
+* 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))
+* world locations for display, export and intrusion classification; deprecate rescale and scale, stage S4 (spec 005) ([#401](https://github.com/Loop3D/LoopStructural/issues/401)) ([62c420e](https://github.com/Loop3D/LoopStructural/commit/62c420e8475a10f56380b9b0e1522239b646b4a0))
+
+
+### 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 e5bade63..a5daff02 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'