Release v26.8.0.0 and pybammsolvers v0.9.1

CHANGELOG.md

@@ -1,5 +1,7 @@
 # [Unreleased](https://github.com/pybamm-team/PyBaMM/)
 
+# [v26.8.0.0](https://github.com/pybamm-team/PyBaMM/tree/pybamm-v26.8.0.0) - 2026-08-13
+
 ## Features
 
 - Added unstructured mesh support (`UnstructuredSubMesh`, generators, and interface coupling) for arbitrary 2D/3D domains. Hexahedra must have planar faces (warped hexes raise a `GeometryError`), and `UserSuppliedUnstructuredMesh` accepts tetrahedral, triangular, and quadrilateral cells only. ([#5687](https://github.com/pybamm-team/PyBaMM/pull/5687))
@@ -19,6 +21,7 @@
 - `pybamm.citations.register` now names the citation the caller passed in when a BibTeX string fails to parse, instead of whichever entry the parser had reached. ([#5677](https://github.com/pybamm-team/PyBaMM/pull/5677))
 - Deserialising a parameter set whose interpolant specification is invalid now logs a warning naming the offending parameter, instead of printing the bare exception to stdout with no indication of which parameter fell back to zero. ([#5679](https://github.com/pybamm-team/PyBaMM/pull/5679))
 - A user-specified boundary tag that is absent from a mesh file now raises `GeometryError` instead of degrading to a warning and a mesh with no boundary groups. ([#5679](https://github.com/pybamm-team/PyBaMM/pull/5679))
+- Fixed the `pybammsolvers` CMake build under conda (`CONDA_BUILD=1`), where SUNDIALS, SuiteSparse, and CasADi are host dependencies rather than vendored: the `.idaklu` root defaults and the from-source bootstrap are skipped, the system CasADi is used instead of a pip one, and the libstdc++ ABI probe (which has no wheel to inspect and would wrongly force the legacy ABI) is now limited to the PyPI-CasADi path. Released as `pybammsolvers` v0.9.1. ([#5668](https://github.com/pybamm-team/PyBaMM/pull/5668))
 
 ## Optimizations
 

packages/pybamm/CITATION.cff

@@ -24,6 +24,6 @@ keywords:
   - "expression tree"
   - "python"
   - "symbolic differentiation"
-version: "26.7.1.0"
+version: "26.8.0.0"
 repository-code: "https://github.com/pybamm-team/PyBaMM"
 title: "Python Battery Mathematical Modelling (PyBaMM)"

packages/pybammsolvers/pyproject.toml

@@ -18,7 +18,7 @@ requires-python = ">=3.10,<3.15"
 license-files = ["LICENSE"]
 readme = "README.md"
 # version.py stays the source of truth; a pre-commit hook mirrors it here.
-version = "0.9.0"
+version = "0.9.1"
 dependencies = [
     "casadi==3.7.2",
     "numpy>=2.0.0",

packages/pybammsolvers/src/pybammsolvers/version.py

@@ -1,3 +1,3 @@
 # Single source of truth for the pybammsolvers version. Bump this at release;
 # a pre-commit hook mirrors it into pyproject.toml (see .pre-commit-config.yaml).
-__version__ = "0.9.0"
+__version__ = "0.9.1"

packages/pybammsolvers/vcpkg.json

@@ -1,6 +1,6 @@
 {
   "name": "pybammsolvers",
-  "version-string": "0.9.0",
+  "version-string": "0.9.1",
   "dependencies": [
     "casadi",
     {